General English - II (En108)

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  • 1/50 Questions

    Arteries and veins are ………………..

    • Vessels
    • Blood
    • Clear fluid
    • Blood cells
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General English Quizzes & Trivia
About This Quiz

This quiz covers key aspects of the lymphatic and cardiovascular systems, including the structure and function of vessels, nodes, and valves.

Quiz Preview

  • 2. 

    The two semilunar valves - prevent the backflow of blood into the heart.

    • Mitral valves

    • Triscupid valve and biscupid valve

    • Atrioventricular valves

    • Pulmonary valve and aortic valve

    Correct Answer
    A. Pulmonary valve and aortic valve
    Explanation
    The correct answer is pulmonary valve and aortic valve. These two valves, also known as semilunar valves, are located between the ventricles and their respective arteries (pulmonary artery and aorta). They open when the ventricles contract, allowing blood to be pumped out of the heart, and close when the ventricles relax, preventing the backflow of blood into the heart. This ensures that blood flows in one direction, from the heart to the rest of the body.

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  • 3. 

    Small masses of  lymphatic tissue

    • Lymph

    • Lymph node

    • Lymphatic vessels

    • Lymphatic organ

    Correct Answer
    A. Lymph node
    Explanation
    Lymph nodes are small masses of lymphatic tissue that play a crucial role in the immune system. They filter lymph, a fluid that circulates throughout the body, and help to remove harmful substances such as bacteria, viruses, and cancer cells. Lymph nodes contain immune cells, such as lymphocytes, which help to recognize and destroy these harmful substances. Therefore, lymph nodes are considered an important part of the lymphatic system and are essential for maintaining a healthy immune response.

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  • 4. 

    What is interstitial fluid that has entered lymphatic vessels called?

    • Lymph

    • Lymph node

    • Lymphatic vessels

    • Lymphatic organ

    Correct Answer
    A. Lymph
    Explanation
    Lymph is the interstitial fluid that has entered lymphatic vessels. Lymphatic vessels are responsible for collecting and transporting this fluid, which contains waste products, proteins, and other substances, back to the bloodstream. Lymph nodes and lymphatic organs are also part of the lymphatic system but are not specifically the interstitial fluid that has entered lymphatic vessels.

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  • 5. 

    Lymphatic system general characteristics

    • Work with circulatory system, carry nutrients through the blood for provide body

    • Remove waste products from the body, part of immune and digestive system

    • Network of vessels; aid in circulation of body fluids; closely associated with cardiovascular system

    • Work with muscular system, support and frame of the body

    Correct Answer
    A. Network of vessels; aid in circulation of body fluids; closely associated with cardiovascular system
    Explanation
    The correct answer is "network of vessels; aid in circulation of body fluids; closely associated with cardiovascular system." The lymphatic system is a network of vessels that helps in the circulation of body fluids, including lymph, which carries nutrients and waste products. It is closely associated with the cardiovascular system as it works alongside the blood vessels to transport these fluids throughout the body.

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  • 6. 

    What makes up the lymphatic system?

    • Lymph, lymphatic vessels, red bone marrow, nodes, nodules, thymus, spleen

    • Lymphatic plexus, lymphoid tissue, alimentary organs, liver, bile , intestines

    • Lymphocytes, right lymphatic duct, arterial and venous blood vessels, long bones

    • Superficial and deep lymphatic vessels, skin, immune organs, adrenal gland

    Correct Answer
    A. Lymph, lymphatic vessels, red bone marrow, nodes, nodules, thymus, spleen
    Explanation
    The lymphatic system is made up of various components including lymph, lymphatic vessels, red bone marrow, nodes, nodules, thymus, and spleen. Lymph is a clear fluid that carries immune cells and waste products. Lymphatic vessels are a network of tubes that transport lymph throughout the body. Red bone marrow is responsible for the production of lymphocytes, a type of white blood cell. Nodes and nodules are small structures that filter lymph and contain immune cells. The thymus is involved in the development of T cells, while the spleen filters blood and removes old or damaged red blood cells. Together, these components make up the lymphatic system, which plays a crucial role in immune function and fluid balance in the body.

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  • 7. 

    What are the two lymphatic ducts?

    • The left lymphatic duct and thoracic duct

    • The right lymphatic duct and the thoracic duct

    • Superficial lymphatic vessels and deep lymphatic vessels

    • Left internal jugular and left subclavian veins

    Correct Answer
    A. The right lymphatic duct and the thoracic duct
    Explanation
    The correct answer is the right lymphatic duct and the thoracic duct. These two lymphatic ducts are responsible for draining lymph fluid from different parts of the body. The right lymphatic duct drains lymph from the right upper limb, right side of the head, and right side of the thorax, while the thoracic duct drains lymph from the rest of the body. Together, these ducts ensure the proper circulation and filtration of lymphatic fluid in the body.

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  • 8. 

    The pericardium ………………. the pericardial cavity which is filled with pericardial fluid, a lubricant for the membranes of the heart.

    • Covers

    • Separates

    • Carries

    • Controls

    Correct Answer
    A. Covers
    Explanation
    The pericardium is a protective sac that surrounds the heart. It covers the pericardial cavity, which is the space between the pericardium and the heart. This cavity is filled with pericardial fluid, which acts as a lubricant for the membranes of the heart. Therefore, the pericardium covers the pericardial cavity and helps to protect and lubricate the heart.

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  • 9. 

    The ………….. pumps blood through the blood vessels to all the cells of the body.

    • Vessel

    • Blood vessel

    • Heart

    • Human body

    Correct Answer
    A. Heart
    Explanation
    The heart is responsible for pumping blood through the blood vessels to all the cells of the body. It acts as a muscular pump that contracts and relaxes to push oxygenated blood from the lungs to the rest of the body and deoxygenated blood back to the lungs for oxygenation. The heart's continuous pumping action ensures that all the cells receive the necessary nutrients and oxygen for their proper functioning.

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  • 10. 

    It is…………………a protective covering of the heart.

    • Myocardium

    • Epicardium

    • Endocardium

    • Pericardium

    Correct Answer
    A. Pericardium
    Explanation
    The pericardium is a protective covering of the heart. It is a double-layered sac that surrounds and protects the heart. The outer layer of the pericardium is called the fibrous pericardium, which is tough and fibrous, providing structural support and preventing overstretching of the heart. The inner layer, called the serous pericardium, is a thin, smooth membrane that produces a small amount of fluid to lubricate and reduce friction between the layers. Together, the pericardium acts as a barrier against infection and trauma, keeping the heart safe and functioning properly.

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  • 11. 

    The circulation of blood is the essential function of the …………………………….

    • Respiratory system

    • Endocrine system

    • Cardiovascular system

    • Sensory system

    Correct Answer
    A. Cardiovascular system
    Explanation
    The correct answer is the cardiovascular system. The circulation of blood is indeed the essential function of the cardiovascular system. This system consists of the heart, blood vessels, and blood, and its main function is to transport oxygen, nutrients, hormones, and waste products throughout the body. The heart pumps oxygenated blood to the body's tissues and organs, while the blood vessels carry the blood to and from the heart. Without the cardiovascular system, the body would not receive the necessary oxygen and nutrients, leading to organ failure and ultimately death.

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  • 12. 

    ……………………….. - thick layer of muscular tissue.

    • Myocardium

    • Epicardium

    • Endocardium

    • Pericardium

    Correct Answer
    A. Myocardium
    Explanation
    The correct answer is myocardium. The myocardium is a thick layer of muscular tissue that makes up the middle layer of the heart wall. It is responsible for the contraction and pumping action of the heart, allowing it to pump blood throughout the body. The myocardium is composed of specialized cardiac muscle cells that are interconnected and work together to create the coordinated contractions necessary for proper heart function.

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  • 13. 

    Collects lymph from the left side of the head and neck, upper left quadrant of the trunk, left arm, the entire lower portion of the trunk, and both legs.  

    • The right lymphatic duct

    • Superficial lymphatic vessels

    • The deep lymphatic vessels

    • Thoracic duct

    Correct Answer
    A. Thoracic duct
    Explanation
    The thoracic duct is responsible for collecting lymph from various parts of the body, including the left side of the head and neck, upper left quadrant of the trunk, left arm, the entire lower portion of the trunk, and both legs. This duct is the largest lymphatic vessel in the body and plays a crucial role in returning lymph back to the bloodstream. It drains into the left subclavian vein, where the lymph is then mixed with the blood.

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  • 14. 

    Excess tissue fluid ( choose word with same meaning) 

    • Interstitial fluid

    • Surplus tissue fluid

    • Clear watery liquid

    • Intercellular fluid

    Correct Answer
    A. Surplus tissue fluid
    Explanation
    The correct answer is "surplus tissue fluid." This term refers to an excess amount of fluid that accumulates in the interstitial spaces between cells in the body's tissues. It is also known as interstitial fluid or excess tissue fluid. This fluid plays a crucial role in delivering nutrients and oxygen to cells, as well as removing waste products.

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  • 15. 

    What are two other names for interstitial fluid?

    • Interstitial fluid and surplus tissue fluid

    • Intercellular fluid and tissue fluid

    • Clear fluid and watery liquid

    • Lubricant liquid and synovial fluid

    Correct Answer
    A. Intercellular fluid and tissue fluid
    Explanation
    The correct answer is "Intercellular fluid and tissue fluid." Interstitial fluid refers to the fluid that surrounds and fills the spaces between cells in tissues, while tissue fluid is the fluid that bathes the cells within a tissue. Both terms are used interchangeably to describe the fluid that exists in the interstitial spaces and provides nutrients and oxygen to cells, as well as removes waste products.

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  • 16. 

    What is the role of Lymphatic collecting vessels?

    • It drains lymph from the body’s right upper quadrant (right side of the head and neck, the right upper limb, and the right half of the thoracic cavity )

    • It creates immune cells, moves fluids away from tissues, and absorbs fat.

    • To transport fluids back to blood and act as the body’s defense and resistance to disease.

    • To transport Lymph from Lymph capillaries to nodes where it is filtered until it's return to the circulatory veins

    Correct Answer
    A. To transport Lymph from Lymph capillaries to nodes where it is filtered until it's return to the circulatory veins
    Explanation
    The role of lymphatic collecting vessels is to transport lymph from lymph capillaries to nodes where it is filtered until it's returned to the circulatory veins. These vessels play a crucial role in the immune system by carrying lymph, which contains immune cells and other substances, to the lymph nodes where they can be filtered and processed. This helps in the body's defense and resistance to diseases. Once the lymph is filtered, it is then returned to the circulatory veins for circulation throughout the body.

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  • 17. 

    Lymphatics( choose word with same meaning)

    • Lymph node

    • lymphatic vessels

    • Lymphatic organ

    • Lymph tissue

    Correct Answer
    A. lymphatic vessels
    Explanation
    Lymphatics refers to the entire system of vessels and organs involved in the transportation and filtration of lymph fluid. The correct answer, lymphatic vessels, specifically refers to the network of thin tubes that carry lymph fluid throughout the body. These vessels play a crucial role in the immune system by collecting and filtering lymph, which contains waste, toxins, and immune cells. Therefore, lymphatic vessels accurately represent the same meaning as lymphatics.

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  • 18. 

    Skin is readily accessible, it is important in ……………………..

    • General health

    • Superficial nerves

    • Physical examination

    • Fluid loss

    Correct Answer
    A. Physical examination
    Explanation
    Skin is readily accessible and plays a crucial role in physical examination. During a physical examination, the skin is examined for any abnormalities, such as rashes, lesions, or discoloration, which can provide important clues about a person's overall health. The skin can also be assessed for signs of dehydration or fluid loss, as well as for superficial nerves that may be affected. Therefore, the correct answer is physical examination.

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  • 19. 

    Skin is heat regulation through the sweat glands and ……………

    • Sensory endings

    • Blood vessels

    • Best indicators

    • Sweat nerves

    Correct Answer
    A. Blood vessels
    Explanation
    Blood vessels play a crucial role in heat regulation by controlling the flow of blood to the skin. When the body gets too hot, the blood vessels in the skin dilate, allowing more blood to flow near the surface of the skin. This allows heat to be released from the body through the process of convection. Conversely, when the body gets too cold, the blood vessels constrict, reducing blood flow to the skin and conserving heat. Therefore, blood vessels are an important component in the body's ability to regulate its temperature.

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  • 20. 

    Pull apart

    • Inflate

    • Exaggerate

    • Be separated

    • Interlock

    Correct Answer
    A. Be separated
    Explanation
    The word "pull apart" suggests a physical action of separating or disassembling something. The word "inflate" means to fill with air or expand. "Exaggerate" means to overstate or overemphasize. "Interlock" means to fit or engage with one another. Out of these options, "be separated" is the closest in meaning to "pull apart" as it implies a state of being apart or disconnected. Therefore, "be separated" is the correct answer.

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  • 21. 

    Alveolar process

    • Socket

    • Soccer articulation

    • Dentoalveolarsyndesmosis

    • Gomphosis

    Correct Answer
    A. Socket
    Explanation
    The correct answer is "socket". A socket refers to a hollow or concave structure in the bone that provides a space for the attachment or articulation of another structure, such as a tooth. In the context of dentistry, the alveolar process refers to the part of the jawbone that contains the sockets for the teeth. Therefore, the term "socket" is the most appropriate choice among the given options as it directly relates to the alveolar process and its function in tooth articulation.

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  • 22. 

    Sense of movement

    • Information

    • Shock absorption

    • Vascular

    • proprioception

    Correct Answer
    A. proprioception
    Explanation
    Proprioception refers to the body's ability to sense the position, movement, and orientation of its own parts. It provides us with a sense of where our body is in space and allows us to coordinate movements and maintain balance. This sense is crucial for activities such as walking, running, and even simple tasks like picking up objects. It helps us adjust our movements and maintain stability. Therefore, proprioception is the most suitable answer as it directly relates to the sense of movement and body awareness.

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  • 23. 

    Exaggerate

    • Inflate

    • Convert

    • Be separated

    • Interlock

    Correct Answer
    A. Inflate
    Explanation
    The word "exaggerate" means to overstate or overemphasize something. "Inflate" is a synonym of exaggerate, as it also means to make something seem larger or more important than it actually is. Therefore, "inflate" is the correct answer as it is the word that has a similar meaning to "exaggerate".

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  • 24. 

    Dentoalveolarsyndesmosis

    • Epiphysis

    • Gomphosis

    • alveolar process

    • Root of tooth

    Correct Answer
    A. Gomphosis
    Explanation
    A gomphosis is a type of joint that connects a tooth to its socket in the jawbone. This joint is unique because it is immovable and provides stability to the tooth. The other options listed are not related to the concept of a gomphosis. The term "dentoalveolarsyndesmosis" is not a recognized term or concept in anatomy. "Epiphysis" refers to the end of a long bone, "alveolar process" refers to the bony ridge that contains the tooth sockets, and "root of tooth" refers to the part of the tooth that is embedded in the jawbone.

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  • 25. 

    Place of union 

    • Articular capsule

    • Joint cavity

    • Cartilage

    • Junction

    Correct Answer
    A. Junction
    Explanation
    The term "place of union" refers to the point where two or more things come together or meet. In the context of the given options, "junction" is the most appropriate term that describes the place of union. It signifies the point where different structures or elements converge or connect. The other options, such as articular capsule, joint cavity, and cartilage, do not specifically denote the concept of a place of union.

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  • 26. 

    Ensure

    • Support

    • Breinforce

    • Supply

    • Confirm

    Correct Answer
    A. Confirm
    Explanation
    The word "ensure" means to make certain or guarantee something. The word "confirm" also means to establish the truth or correctness of something, which is similar to ensuring. Therefore, "confirm" is the correct answer as it is the most closely related synonym to "ensure" among the given options.

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  • 27. 

    Movement for lying face down or movement of the forearm so the palm faces anteriorly or superiorly lie, the anatomical position.

    • Pronation

    • Supination

    • Circumduction

    • Rotation

    Correct Answer
    A. Pronation
    Explanation
    Pronation refers to the movement of the forearm where the palm faces anteriorly or inferiorly. This movement is opposite to supination, where the palm faces posteriorly or superiorly. Circumduction refers to the movement in which the limb or body part moves in a circular manner. Rotation refers to the movement of a bone around its longitudinal axis. In the given context, the movement described matches the definition of pronation, making it the correct answer.

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  • 28. 

    Join/unite/ communicate

    • Bind/blend/articulate

    • Joint/ line/ achieve

    • Limit/ enclose/ union

    • Limit / achieve / union

    Correct Answer
    A. Bind/blend/articulate
    Explanation
    The words "bind," "blend," and "articulate" all suggest the idea of bringing things together or combining them in some way. These words imply a sense of unity or cohesion. The other options, such as "join" or "unite," also convey a similar meaning, but "bind," "blend," and "articulate" are more specific and descriptive in terms of how things are being brought together. Therefore, "bind/blend/articulate" is the correct answer.

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  • 29. 

    Allow  movement / provide movement

    • Gliding movement/produce movement

    • Permit movement/movement occurs

    • Free movable/ move

    • Movable joint/ slight movement

    Correct Answer
    A. Permit movement/movement occurs
    Explanation
    The correct answer is "permit movement/movement occurs." This option suggests that the given concept or object allows for movement to happen or takes place. It implies that there is a capability or allowance for motion to occur.

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  • 30. 

    Stretching and straightening out a bending  joint 

    • Extension

    • Flexion

    • Abduction

    • Adduction

    Correct Answer
    A. Extension
    Explanation
    Extension is the correct answer because it refers to the action of stretching and straightening out a bending joint. It is the opposite of flexion, which is the bending of a joint. Abduction and adduction, on the other hand, refer to the movement of a body part away from or towards the midline of the body, respectively, and are not related to the given action of stretching and straightening a bending joint.

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  • 31. 

    Fingerlike process- the dens 

    • Odontoid process

    • Alveoler process

    • Gomphosis

    • root of tooth

    Correct Answer
    A. Odontoid process
    Explanation
    The correct answer is odontoid process. The odontoid process is a fingerlike projection that extends upward from the body of the second cervical vertebra, also known as the dens. It serves as a pivot for the rotation of the atlas (first cervical vertebra) and allows for the movement of the head. The other options, such as alveolar process, gomphosis, and root of tooth, are unrelated to the anatomical structure described in the question.

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  • 32. 

    Vertebral column 

    • Vertebral disc

    • Spine

    • Acromion

    • Atlas

    Correct Answer
    A. Spine
    Explanation
    The vertebral column, also known as the spine, is a series of bones called vertebrae that extend from the skull to the pelvis. It provides support and protection for the spinal cord, which is a vital part of the central nervous system. The vertebral column allows for movement and flexibility, while also maintaining stability. The other options, such as vertebral disc, acromion, and atlas, are all related to the spine but do not represent the entire structure.

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  • 33. 

    Primary cartilaginous joint

    • Syndedsmosis

    • Gomphosis

    • Synchondroses

    • Symphyses

    Correct Answer
    A. Syndedsmosis
    Explanation
    A syndesmosis is a type of joint in which the bones are connected by a ligament or a sheet of fibrous tissue, allowing for limited movement. This type of joint is found in the distal tibiofibular joint, where the tibia and fibula bones are connected by a ligament. This joint provides stability to the ankle joint and allows for a small amount of rotation between the two bones. The other options, gomphosis, synchondroses, and symphyses, are all different types of joints that involve different types of connective tissues and have different functions.

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  • 34. 

    Lubricating substance

    • Synovial fluid

    • Hyline cartilage

    • Joint material

    • Periosteum

    Correct Answer
    A. Synovial fluid
    Explanation
    Synovial fluid is the correct answer because it is a lubricating substance found in joints. It helps reduce friction between the bones, allowing smooth movement and preventing wear and tear. Synovial fluid also provides nutrients and oxygen to the joint tissues, helping to keep them healthy. It is produced by the synovial membrane, which lines the joint cavity.

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  • 35. 

    Act of bending joint

    • Extension

    • Flexion

    • Abduction

    • Adduction

    Correct Answer
    A. Flexion
    Explanation
    Flexion is the act of bending a joint, decreasing the angle between two bones or body parts. It typically occurs in the sagittal plane and brings two body parts closer together. In this context, flexion is the most appropriate term to describe the act of bending a joint. Extension, on the other hand, is the opposite of flexion and refers to the straightening or increasing the angle between two bones or body parts. Abduction and adduction, on the other hand, involve movement away from and towards the midline of the body, respectively, and are not directly related to the act of bending a joint.

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  • 36. 

    Moving body part toward the central axis

    • Extension

    • Flexion

    • Abduction

    • Adduction

    Correct Answer
    A. Adduction
    Explanation
    Adduction refers to the movement of a body part towards the central axis of the body. This movement involves bringing the body part closer to the midline or towards the center of the body. In contrast, extension refers to the movement that increases the angle between two body parts, flexion refers to the movement that decreases the angle between two body parts, and abduction refers to the movement of a body part away from the central axis.

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  • 37. 

    Inflammation of joints

    • Injured joints

    • Articular arteries

    • Joint capsule

    • Arthritis

    Correct Answer
    A. Arthritis
    Explanation
    Arthritis refers to the inflammation of joints. This condition can cause pain, stiffness, and swelling in the affected joints. It can be caused by various factors such as injury, autoimmune disorders, or wear and tear of the joints. The term "inflammation of joints" perfectly describes the condition of arthritis, making it the correct answer.

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  • 38. 

    Big, large

    • Incongruous

    • Considerable

    • Affect

    • Convert

    Correct Answer
    A. Considerable
    Explanation
    The word "considerable" is the correct answer because it means large or significant. It is a suitable synonym for "big" in this context.

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  • 39. 

    Movement for lying face up or palm faces anteriorly or superiorly of forearm, the anatomical position.

    • Pronation

    • Supination

    • Circumduction

    • Rotation

    Correct Answer
    A. Supination
    Explanation
    Supination is the correct answer because it refers to the movement of the forearm where the palm faces anteriorly or superiorly. In supination, the radius and ulna bones in the forearm are parallel to each other, allowing the palm to face upwards or forwards. This movement is opposite to pronation, where the palm faces downwards or backwards. Circumduction refers to a circular movement involving a combination of flexion, extension, abduction, and adduction, while rotation refers to the movement around a central axis.

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  • 40. 

    Ерөнхий эрүүл мэндийн хамгийн гол тодорхйологч

    • A. Important in physical examination

    • Suggest prognosis

    • Measure health body pressure

    • The best indicator of general health

    Correct Answer
    A. The best indicator of general health
    Explanation
    The correct answer is "the best indicator of general health." This means that the main characteristic or factor that can accurately determine or reflect a person's overall health status is considered to be the most important in assessing their well-being.

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  • 41. 

    Leukocyte

    • White blood cell

    • Blood platelets

    • Red blood cell

    • Damaged cell

    Correct Answer
    A. White blood cell
    Explanation
    The correct answer is "White blood cell." Leukocytes are commonly known as white blood cells and are an essential part of the immune system. They help in fighting off infections and diseases by attacking and destroying foreign substances, such as bacteria and viruses. Unlike red blood cells, which carry oxygen, or blood platelets, which aid in clotting, white blood cells are responsible for the body's defense against pathogens.

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  • 42. 

    B cell stays in the bone marrow and what does do T cell?

    • T cell travel to the thymus

    • T cell invades bacteria and viruses in the body

    • T cell identifies enemy microorganism

    • T cell stimulates antibody

    Correct Answer
    A. T cell travel to the thymus
    Explanation
    T cells are a type of white blood cell that plays a crucial role in the immune response. They are produced in the bone marrow, just like B cells, but they undergo a maturation process in the thymus gland. The thymus is responsible for training and educating T cells to recognize and respond to specific pathogens. Therefore, the correct answer is that T cells travel to the thymus for maturation and education, enabling them to effectively identify and combat enemy microorganisms.

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  • 43. 

    The female reproductive system is a group of organs and glands that produce………..

    • Ova

    • Ovum

    • Egg cell

    • Aroela

    Correct Answer
    A. Ova
    Explanation
    The female reproductive system consists of organs and glands that produce ova, which are the female reproductive cells or eggs. These ova are released from the ovaries during ovulation and can be fertilized by sperm to initiate pregnancy. Therefore, the term "ova" is the correct answer as it accurately represents the female reproductive cells produced by the system.

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  • 44. 

    Menopause is time when menstruation ceases; usually between ages……………

    • 15 and 17

    • 45 and 50

    • 50 and 55

    • 45 and 55

    Correct Answer
    A. 45 and 55
    Explanation
    Menopause is the stage in a woman's life when she stops having menstrual periods. It typically occurs between the ages of 45 and 55. During menopause, the ovaries stop releasing eggs and the production of hormones like estrogen and progesterone declines. This hormonal change can lead to various symptoms such as hot flashes, mood swings, and vaginal dryness. The age range of 45 to 55 is considered the normal range for menopause, although it can vary from person to person.

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  • 45. 

    A nutrient-rich organ grows in the uterine wall.

    • Placenta

    • Adult

    • Fetus

    • Embryo

    Correct Answer
    A. Fetus
    Explanation
    During pregnancy, a nutrient-rich organ called the placenta grows in the uterine wall. The placenta is responsible for providing oxygen and nutrients to the developing fetus, as well as removing waste products. It acts as a connection between the mother and the fetus, allowing for the exchange of substances necessary for the fetus's growth and development. Therefore, the correct answer is "fetus" as it is the developing offspring in the womb during pregnancy.

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  • 46. 

    One of the three basic parts of a neuron is the ……………….

    • Axon

    • Myelin

    • Pons

    • Dura mater

    Correct Answer
    A. Axon
    Explanation
    The correct answer is axon. The axon is one of the three basic parts of a neuron, along with the cell body and dendrites. It is a long, slender projection that carries electrical signals away from the cell body to other neurons, muscles, or glands. The axon is covered by a myelin sheath, which helps to insulate and speed up the transmission of electrical impulses. The pons and dura mater are not parts of a neuron, but rather structures in the brain and the protective covering of the brain, respectively.

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  • 47. 

    The reproductive systems of males and females consist of……………….

    • Steroid sex hormones and exocrine glands

    • Seminiferous tubules of the testis

    • Glands, ducts and external genitalia

    • Urethra

    Correct Answer
    A. Steroid sex hormones and exocrine glands
    Explanation
    The reproductive systems of males and females consist of steroid sex hormones and exocrine glands. These hormones, such as testosterone in males and estrogen and progesterone in females, play a crucial role in the development and functioning of the reproductive organs. The exocrine glands, such as the prostate gland and seminal vesicles in males and the mammary glands in females, secrete substances that are important for reproduction. Together, these steroid sex hormones and exocrine glands contribute to the overall reproductive function in both males and females.

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  • 48. 

    Systole is…………………

    • Relaxation phase of a heartbeat

    • Heart rhythm

    • Regular heartbeat or pulse

    • Contraction phase of the heartbeat

    Correct Answer
    A. Contraction phase of the heartbeat
    Explanation
    The correct answer is "Contraction phase of the heartbeat." Systole refers to the phase of the cardiac cycle when the heart muscle contracts and pumps blood out of the chambers into the arteries. This phase is responsible for the forceful ejection of blood from the heart and is followed by the relaxation phase known as diastole.

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  • 49. 

    .……………….carry deoxygenated blood toward the heart.

    • Arteries

    • Capillaries

    • Veins

    • Blood

    Correct Answer
    A. Veins
    Explanation
    Veins carry deoxygenated blood toward the heart. Unlike arteries, which carry oxygenated blood away from the heart, veins transport blood back to the heart after it has delivered oxygen and nutrients to the body's tissues. This deoxygenated blood is then pumped to the lungs to be reoxygenated before returning to the heart and being circulated again. Capillaries, on the other hand, are the smallest blood vessels that connect arteries and veins, allowing for the exchange of oxygen, nutrients, and waste products between the blood and surrounding tissues.

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  • Current Version
  • Mar 20, 2023
    Quiz Edited by
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  • May 22, 2017
    Quiz Created by
    English1617

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