Anatomy And Physiology 1-test Two
.webp "Anatomy And Physiology 1-test Two - Quiz")
test two in a and p 1. I took these questions from my notes, book, and worksheets.
This is just to help me study and anyone else it can help.
Questions and Answers
- 1.
Connective tissue ensheathing a bundle of muscle cells
- A.
Endomysium
- B.
Perimysium
- C.
Fascicle
- D.
Myofilament
Correct Answer
B. PerimysiumExplanation
The perimysium is a connective tissue that surrounds and supports a bundle of muscle cells called a fascicle. It helps to protect and organize the muscle fibers within the fascicle, providing structure and stability to the muscle. The perimysium also contains blood vessels and nerves that supply the muscle cells with oxygen and nutrients, allowing them to function properly. Therefore, the perimysium is the correct answer in this context.Rate this question:
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- 2.
Bundle of muscle cells
- A.
Fiber
- B.
Sacromere
- C.
Fascicle
- D.
Myofilament
Correct Answer
C. FascicleExplanation
A fascicle is a bundle of muscle cells that are grouped together within a muscle. It is surrounded by connective tissue and contains multiple muscle fibers. The fascicle is responsible for transmitting the force generated by the muscle cells to the tendons, which then allows for movement.Rate this question:
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- 3.
Contractile unit of a muscle
- A.
Sacromere
- B.
myofibril + Add Explanation add more questions:
- C.
Tendon
- D.
Sarcolemma
Correct Answer
A. SacromereExplanation
The correct answer is sacromere. A sarcomere is the contractile unit of a muscle and is responsible for muscle contraction. It is composed of myofibrils, which are long, cylindrical structures within muscle cells. These myofibrils contain the proteins actin and myosin, which interact to generate force and cause muscle contraction. Therefore, the sacromere is the correct answer as it is the fundamental unit that allows muscles to contract and generate movement.Rate this question:
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- 4.
Thin reticular connective tissue surrounding each muscle cell
- A.
Sarcolemma
- B.
Endomysium
- C.
Fiber
- D.
Myofilament
Correct Answer
B. EndomysiumExplanation
The endomysium is a thin reticular connective tissue that surrounds each muscle cell. It provides support and protection to the muscle fibers and allows for the transmission of force generated by the muscle cells. The endomysium also contains blood vessels and nerves that supply nutrients and signals to the muscle cells.Rate this question:
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- 5.
Plasma membrane of muscle cell
- A.
Sacromere
- B.
Sarcolemma
- C.
Sarcoplasm
- D.
Sarcon
Correct Answer
B. SarcolemmaExplanation
The sarcolemma is the plasma membrane of a muscle cell. It surrounds and protects the sarcoplasm, the cytoplasm of the muscle cell. The sarcolemma plays a crucial role in muscle contraction as it is responsible for transmitting the electrical impulses that initiate muscle contractions. It also helps regulate the movement of ions and nutrients into and out of the muscle cell. Therefore, the sarcolemma is the correct answer as it specifically refers to the plasma membrane of a muscle cell.Rate this question:
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- 6.
Long filamentous organelle with a banded appearance found with in muscle cells
- A.
Myofibril
- B.
Myofilament
- C.
Fiber
- D.
Fascicle
Correct Answer
A. MyofibrilExplanation
A myofibril is a long filamentous organelle with a banded appearance found within muscle cells. It is responsible for muscle contraction and contains myofilaments, which are the contractile proteins actin and myosin. The myofibril is composed of repeating units called sarcomeres, which give it its banded appearance. The myofibril plays a crucial role in muscle function and is essential for muscle movement and contraction.Rate this question:
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- 7.
Actin or myosin containing filament
- A.
Sarcolemma
- B.
Fiber
- C.
Myofilament
- D.
Myofibril
Correct Answer
C. MyofilamentExplanation
A myofilament is the correct answer because it refers to the thin or thick filaments made up of actin or myosin proteins that are responsible for muscle contraction. These myofilaments are organized into repeating units called sarcomeres, which make up the myofibrils. The myofibrils are then bundled together to form muscle fibers, which are surrounded by a plasma membrane called the sarcolemma. Therefore, out of the given options, myofilament is the most specific term that accurately describes the actin or myosin-containing filament involved in muscle contraction.Rate this question:
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- 8.
Cord of collagen fibers that attaches muscle to bone
- A.
Ligament
- B.
Sarcolemma
- C.
Bursa
- D.
Tendon
Correct Answer
D. TendonExplanation
A tendon is a cord of collagen fibers that attaches muscle to bone. Unlike ligaments, which connect bone to bone, tendons specifically connect muscle to bone. The collagen fibers in tendons provide strength and stability to the attachment, allowing for efficient transmission of forces from the muscle to the bone during movement.Rate this question:
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- 9.
Term used for biceps brachii during elbow flexion
- A.
Prime mover
- B.
Synergist
- C.
Antagonist
- D.
Fixator
Correct Answer
A. Prime moverExplanation
The term "prime mover" refers to the muscle primarily responsible for producing a specific movement. In the context of elbow flexion, the biceps brachii is the primary muscle that initiates and carries out the movement. It contracts and shortens, causing the forearm to bend at the elbow joint. Therefore, the biceps brachii is appropriately referred to as the prime mover during elbow flexion.Rate this question:
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- 10.
Term that describes the relation of brachialis to biceps brachii during elbow flexion
- A.
Prime mover
- B.
Antagonist
- C.
Synergist
- D.
Fixator
Correct Answer
C. SynergistExplanation
During elbow flexion, the brachialis and biceps brachii muscles work together to produce the movement. The brachialis muscle acts as a synergist to the biceps brachii, meaning that it assists and enhances the action of the prime mover (biceps brachii) in performing the desired movement. The synergist muscles help to stabilize the joint and provide additional force to the prime mover, allowing for efficient and coordinated movement. Therefore, the term that describes the relation of brachialis to biceps brachii during elbow flexion is synergist.Rate this question:
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- 11.
Term for triceps brachii during elbow flexion
- A.
Prime mover
- B.
Synergist
- C.
Fixator
- D.
Antagonist
Correct Answer
D. AntagonistExplanation
During elbow flexion, the triceps brachii muscle acts as an antagonist. An antagonist is a muscle that opposes or reverses the action of another muscle. In this case, the triceps brachii works in opposition to the biceps brachii, which is the prime mover responsible for elbow flexion. While the biceps brachii contracts to flex the elbow, the triceps brachii relaxes to allow this movement to occur smoothly. Therefore, the triceps brachii acts as an antagonist to the prime mover, helping to control and regulate the movement of the elbow joint.Rate this question:
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- 12.
Term for the iliopsoas during hip extension
- A.
Antagonist
- B.
Synergist
- C.
Fixator
- D.
Prime mover
Correct Answer
A. AntagonistExplanation
During hip extension, the iliopsoas muscle is responsible for flexing the hip joint. It works in opposition to the muscles that are responsible for extending the hip joint, such as the gluteus maximus and the hamstrings. These extensor muscles are considered the antagonists to the iliopsoas during hip extension because they oppose its action.Rate this question:
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- 13.
Terms for the rotator cuff muscles and deltoid when the elbow is flexed and the hands grabs a tabletop to lift the table
- A.
Prime mover
- B.
Synegist
- C.
Fixator
- D.
Antagonist
Correct Answer
C. FixatorExplanation
When the elbow is flexed and the hands grab a tabletop to lift the table, the muscles of the rotator cuff and deltoid are involved in stabilizing the shoulder joint. In this context, a fixator muscle is responsible for stabilizing the joint and preventing unwanted movement. It contracts isometrically to maintain the position of the joint while other muscles perform the lifting action. Therefore, the fixator muscle plays a crucial role in providing stability and support during this movement.Rate this question:
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- 14.
Used in smiling
- A.
Zygomatics major and minor
- B.
Sphenoid
- C.
Platysma
- D.
Trapezius
Correct Answer
A. Zygomatics major and minorExplanation
The zygomatics major and minor are muscles that are used in smiling. When these muscles contract, they pull the corners of the mouth upward, creating a smile. The zygomatics major is the larger of the two muscles and is responsible for the upward movement of the corners of the mouth, while the zygomatics minor assists in this movement. Therefore, the zygomatics major and minor are the correct answer as they are specifically involved in the action of smiling.Rate this question:
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- 15.
Used to suck in yous cheeks
- A.
Buccinator
- B.
Masseter
- C.
Oribicularis oculi
- D.
Orbicularis oris
Correct Answer
A. BuccinatorExplanation
The buccinator muscle is responsible for sucking in the cheeks. It is a thin, flat muscle located in the cheek region. When contracted, it helps in compressing the cheeks and pushing the air out, creating a sucking motion. The other muscles listed, such as the masseter, orbicularis oculi, and orbicularis oris, are not involved in this specific action of sucking in the cheeks.Rate this question:
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- 16.
Used in blinking and squinting
- A.
Platysma
- B.
Trapezium
- C.
Corrugator supercilii
- D.
Orbicularis oculi
Correct Answer
D. Orbicularis oculiExplanation
The orbicularis oculi is the correct answer because it is the muscle responsible for blinking and squinting. It is a circular muscle that surrounds the eye and helps to close the eyelids. When the orbicularis oculi contracts, it causes the eyelids to close, protecting the eye from foreign objects and excessive light.Rate this question:
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- 17.
Used to pout
- A.
Buccinator
- B.
Depressor anguli oris and masseter
- C.
Depressor anguli oris and platysma
- D.
Trapezium
Correct Answer
C. Depressor anguli oris and platysmaExplanation
The muscles listed in the answer, depressor anguli oris and platysma, are both involved in the action of pouting. The depressor anguli oris muscle is responsible for pulling the corners of the mouth downward, creating a pouty expression. The platysma muscle, located in the neck, can also contribute to a pout by pulling the lower lip downward. Therefore, the combination of these two muscles is likely to be involved in the action of pouting.Rate this question:
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- 18.
Raises your eyebrows
- A.
Epicranius
- B.
Orbicularis oculi
- C.
Levator labii superioris
- D.
Mentalis
Correct Answer
A. EpicraniusExplanation
The epicranius is the correct answer because it is the muscle responsible for raising the eyebrows. The orbicularis oculi is the muscle responsible for closing the eyelids, the levator labii superioris is the muscle responsible for raising the upper lip, and the mentalis is the muscle responsible for protruding the lower lip. Therefore, none of these muscles are directly involved in raising the eyebrows, making the epicranius the correct choice.Rate this question:
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- 19.
Forms vertical crease in forehead
- A.
Corrugator supercilli
- B.
Depressor anguli oris
- C.
Masseter
- D.
Trapezium
Correct Answer
A. Corrugator supercilliExplanation
The corrugator supercilli is a muscle located in the forehead that is responsible for forming a vertical crease between the eyebrows. This muscle contracts when a person frowns or shows concern, causing the skin to fold and create the characteristic wrinkle. The other options listed are not involved in forming this specific crease in the forehead.Rate this question:
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- 20.
Your kisser
- A.
Buccinator
- B.
Platysma
- C.
Orbicularis oris
- D.
Zygomatics
Correct Answer
C. Orbicularis orisExplanation
The orbicularis oris is the correct answer because it is the muscle responsible for puckering the lips and closing the mouth. It encircles the mouth and is involved in various facial expressions, such as smiling and kissing. The other options mentioned, such as buccinator, platysma, and zygomatics, are also facial muscles, but they do not specifically control the movements of the lips and mouth like the orbicularis oris does.Rate this question:
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- 21.
Prime mover to raise mandible
- A.
Mentalis
- B.
Buccinator
- C.
Levator labii superioris
- D.
Masseter
Correct Answer
D. MasseterExplanation
The masseter is the correct answer because it is the prime mover responsible for raising the mandible (lower jaw). The masseter muscle is one of the main muscles involved in chewing and is located on the side of the face, connecting the lower jawbone to the cheekbone. When the masseter contracts, it causes the mandible to move upwards, allowing for biting and chewing actions.Rate this question:
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- 22.
Tenses skin on neck during shaving
- A.
Trapezium
- B.
Epicranias
- C.
Zygomatics
- D.
Platsyma
Correct Answer
D. PlatsymaExplanation
The platsyma is a muscle located in the neck that becomes tense during shaving. This muscle is responsible for pulling down the corners of the mouth and the skin of the neck, which helps to tighten the skin and create a smoother surface for shaving. When the platsyma contracts, it can also help to expose the hair follicles, making it easier to shave the hair off. Therefore, the platsyma plays a significant role in the shaving process by providing tension to the skin on the neck.Rate this question:
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- 23.
Major spine flexor
- A.
Trapezius
- B.
Rectus abdominis
- C.
Rhomboids
- D.
Transverse abdominis
Correct Answer
B. Rectus abdominisExplanation
The rectus abdominis is the correct answer because it is a major spine flexor. This muscle is located in the front of the abdomen and is responsible for flexing the spine forward, such as during sit-ups or crunches. It is one of the main muscles involved in core stabilization and is commonly referred to as the "six-pack" muscle. The trapezius is a large muscle in the upper back and neck that is responsible for shoulder movement and neck stability. The rhomboids are muscles in the upper back that retract the scapulae. The transverse abdominis is a deep muscle in the abdomen that helps with core stability and compression of the abdominal contents.Rate this question:
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- 24.
Prime mover for arm extension
- A.
Transverse abdominis
- B.
Rhomboids
- C.
Latissimus dorsi
- D.
Internal oblique
Correct Answer
C. Latissimus dorsiExplanation
The latissimus dorsi is the prime mover for arm extension. This muscle is located in the back and is responsible for pulling the arm down and back towards the body. It is a large, triangular muscle that spans from the lower back to the upper arm. When the latissimus dorsi contracts, it generates the force needed to extend the arm, allowing for movements such as pulling, rowing, and swimming.Rate this question:
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- 25.
Prime mover for arm flexion
- A.
Rhomboids
- B.
External intercostals
- C.
Pectoralis major
- D.
Serratus anterior
Correct Answer
C. Pectoralis majorExplanation
The pectoralis major is the prime mover for arm flexion. It is a large, fan-shaped muscle located in the chest region. When it contracts, it pulls the upper arm bone towards the chest, causing flexion at the shoulder joint. This muscle is responsible for movements such as hugging, throwing, and pushing. Its size and position make it an important muscle for generating power and strength during arm flexion exercises. The other muscles listed, such as the rhomboids, external intercostals, and serratus anterior, are not primarily involved in arm flexion and have different functions in the body.Rate this question:
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- 26.
Assume major responsibilty for forming the abdominal girdle
- A.
Rhomboids, pectoralis major and minor
- B.
Deltiod, internal oblique, transverse abdominis
- C.
Deltoid, latissum dorsi, trapezius
- D.
Trapezius, pectoralis major and minor
Correct Answer
B. Deltiod, internal oblique, transverse abdominisExplanation
The deltoid, internal oblique, and transverse abdominis muscles are responsible for forming the abdominal girdle. The deltoid muscle is located in the shoulder and helps stabilize the shoulder joint. The internal oblique muscle is found in the abdominal region and aids in rotating and flexing the trunk. The transverse abdominis muscle is also located in the abdomen and helps with core stability and compression of the abdominal contents. Together, these muscles play a major role in forming and supporting the abdominal girdle.Rate this question:
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- 27.
What area of the bone is covered with cartilage
- A.
Diaphysis
- B.
Epiphysis
- C.
Both
- D.
None of above
Correct Answer
B. EpiphysisExplanation
The epiphysis is the area of the bone that is covered with cartilage. This cartilage acts as a cushion and helps to reduce friction between bones at the joints. The epiphysis is located at the ends of long bones and is responsible for the growth and development of the bone. It is composed of spongy bone and contains red bone marrow, which is responsible for producing blood cells.Rate this question:
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- 28.
What type of cartilage is articular cartilage
- A.
Fibrocartilage
- B.
Reticular
- C.
Hyaline
- D.
It isn't covered with cartilage
Correct Answer
C. HyalineExplanation
Articular cartilage is a type of hyaline cartilage. Hyaline cartilage is the most common type of cartilage found in the body, and it is characterized by its smooth and glassy appearance. It covers the ends of bones in joints, providing a smooth surface for the bones to glide over each other, reducing friction and allowing for easy movement. Therefore, the correct answer is hyaline.Rate this question:
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- 29.
What area is made up of thin layer layer compact bone and thick layer spongy bone
- A.
Diaphysis
- B.
Epiphysis
- C.
Cartilage
- D.
None of the parts of bones
Correct Answer
B. EpiphysisExplanation
The epiphysis is made up of a thin layer of compact bone on the outside and a thick layer of spongy bone on the inside. This structure provides strength and support to the bone while also allowing for the absorption of shock and the distribution of forces during movement. The compact bone on the outside provides protection, while the spongy bone on the inside contains red bone marrow, which produces blood cells. Therefore, the epiphysis is the correct answer as it accurately describes the composition of this specific bone area.Rate this question:
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- 30.
What area is made up of thick layer compact bone and thin layer of spongy bone
- A.
Diaphysis
- B.
Epiphysis
- C.
Cartilage
- D.
None of above
Correct Answer
A. DiaphysisExplanation
The diaphysis is the correct answer because it is the long, cylindrical shaft of a bone that is made up of a thick layer of compact bone on the outside and a thin layer of spongy bone on the inside. The compact bone provides strength and support, while the spongy bone contains red bone marrow and helps with blood cell production. The epiphysis refers to the ends of the bone, which are primarily made up of spongy bone. Cartilage is a connective tissue found at the ends of bones and provides cushioning and flexibility. Therefore, none of the other options accurately describe an area made up of a thick layer of compact bone and a thin layer of spongy bone.Rate this question:
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- 31.
In an adult the growth plate is known as the epiphyseal line, in children what is this called?
- A.
Epiphyseal line
- B.
Epiphyseal growth line
- C.
Epiphyseal
- D.
Epiphyseal plate
Correct Answer
D. Epiphyseal plateExplanation
The correct answer is "epiphyseal plate." In children, the growth plate is called the epiphyseal plate. This is a layer of cartilage located at the ends of long bones, which allows for bone growth and development. As children grow, the epiphyseal plate gradually ossifies and becomes the epiphyseal line in adults. This transformation marks the end of bone growth.Rate this question:
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- 32.
Bone cell found in lacunae
- A.
Osteocyte
- B.
Osteoblast
- C.
Osteoclast
- D.
Osteogenesis
Correct Answer
A. OsteocyteExplanation
Osteocytes are bone cells that are found within small spaces called lacunae. These cells are responsible for maintaining the bone tissue by regulating the exchange of nutrients and waste materials with the blood vessels. Osteocytes also play a crucial role in bone remodeling and repair. They communicate with each other and with other bone cells through tiny channels called canaliculi, allowing for the transmission of signals and nutrients. Therefore, osteocyte is the correct answer for the given question.Rate this question:
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- 33.
Vertical canal in an osteon
- A.
Osteocyte
- B.
Lamellae
- C.
Lacunae
- D.
Central canal
Correct Answer
D. Central canalExplanation
The central canal is a structure found in an osteon, which is the basic unit of compact bone. It runs through the center of the osteon and contains blood vessels and nerves. The central canal is responsible for providing nutrients and oxygen to the osteocytes, which are bone cells located in the lacunae. The lamellae, on the other hand, are concentric layers of bone tissue surrounding the central canal, while the lacunae are small spaces within the lamellae where the osteocytes reside. Therefore, the central canal is the correct answer as it is the main channel for communication and nutrient exchange within the osteon.Rate this question:
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- 34.
Cavity that contains yellow marrow in adults
- A.
Medullary
- B.
Cranial
- C.
Abdominal
- D.
Unmedullary
Correct Answer
A. MedullaryExplanation
The correct answer is "medullary" because the term "medullary" refers to the cavity that contains yellow marrow in adults. Yellow marrow is primarily composed of fat cells and is found in the medullary cavity of long bones such as the femur and tibia. This cavity is responsible for storing and producing blood cells in early life, but as an individual reaches adulthood, it is mostly filled with yellow marrow. Therefore, "medullary" is the appropriate term to describe the cavity that contains yellow marrow in adults.Rate this question:
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- 35.
Bone shaft
- A.
Epiphysis
- B.
Diaphysis
- C.
Medullary cavity
- D.
None of above
Correct Answer
B. DiaphysisExplanation
The diaphysis refers to the long, cylindrical main portion of a bone. It is located between the two ends of the bone, known as the epiphyses. The diaphysis is primarily composed of compact bone tissue and contains the medullary cavity, which houses the bone marrow. Therefore, among the given options, diaphysis is the correct answer as it accurately describes the main portion of a bone.Rate this question:
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- 36.
Spaces where the osteocytes are located
- A.
Lamellae
- B.
Central canal
- C.
Outside surrounding osteon
- D.
Lacunae
Correct Answer
D. LacunaeExplanation
Lacunae are the spaces where the osteocytes, or bone cells, are located. These small spaces are found within the lamellae, which are concentric rings of bone matrix. The lacunae are arranged around the central canal, which contains blood vessels and nerves. Together, the lacunae, lamellae, and central canal form the basic structural unit of compact bone called an osteon. The osteocytes within the lacunae are responsible for maintaining the health and function of the bone tissue.Rate this question:
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- 37.
Horizontal canal in osteon
- A.
Lamellae
- B.
Lacunae
- C.
Central canal
- D.
Volkmanns canal
Correct Answer
D. Volkmanns canalExplanation
Volkmann's canal is a horizontal canal in the osteon that connects the central canals. It allows for the passage of blood vessels, nerves, and connective tissue between adjacent osteons. This canal plays a crucial role in providing nutrients and oxygen to the osteocytes within the lacunae and helps in the removal of waste products. Therefore, the presence of Volkmann's canal ensures the proper functioning and health of the bone tissue.Rate this question:
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- 38.
Small canal connecting lacunae
- A.
Canaliculi
- B.
Lamellae
- C.
Osteons
- D.
None of above
Correct Answer
A. CanaliculiExplanation
Canaliculi are small canals that connect lacunae in bone tissue. Lacunae are small spaces within the bone matrix that house osteocytes, which are mature bone cells. Canaliculi allow for the exchange of nutrients and waste products between osteocytes and the blood supply. They also facilitate communication between osteocytes, allowing them to coordinate their activities. Therefore, canaliculi are the correct answer as they are the small canals that connect lacunae in bone tissue.Rate this question:
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- 39.
Membrane lining medullary cavity
- A.
Periosteum
- B.
Endosteum
- C.
Both
- D.
None of above
Correct Answer
B. EndosteumExplanation
The endosteum is the correct answer because it is the membrane that lines the medullary cavity, which is the central cavity of long bones. The endosteum is a thin connective tissue membrane that covers the inner surface of the bone, including the medullary cavity. It contains osteoprogenitor cells, which are responsible for bone growth and repair. The periosteum, on the other hand, is the membrane that covers the outer surface of bones, while the medullary cavity is the hollow space within the bone that contains bone marrow.Rate this question:
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- 40.
Membrane covering surface of bone
- A.
Periosteum
- B.
Endosteum
- C.
Both a and b
- D.
Synovial
Correct Answer
A. PeriosteumExplanation
The periosteum is a membrane that covers the surface of bones. It is a tough, fibrous layer that provides protection and nourishment to the underlying bone. It contains blood vessels, nerves, and cells that are involved in bone growth and repair. The periosteum also serves as an attachment site for tendons and ligaments, helping to anchor them to the bone. Overall, the periosteum plays a crucial role in maintaining the health and integrity of the bone.Rate this question:
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- 41.
Composed of osteons
- A.
Compact
- B.
Spongy
- C.
Both
Correct Answer
A. CompactExplanation
The correct answer is "compact." Compact bone is composed of osteons, which are cylindrical structures that make up the dense outer layer of bone. These osteons are tightly packed together, giving compact bone its strength and durability. In contrast, spongy bone is composed of a network of trabeculae, which are thin, branching structures that create a more porous and lightweight interior. Therefore, compact bone is the correct answer as it accurately describes bone tissue that is composed of osteons.Rate this question:
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- 42.
Contains osteocytes and lacunae
- A.
Compact
- B.
Spongy
- C.
Both
Correct Answer
C. BothExplanation
The correct answer is "both" because both compact and spongy bone contain osteocytes and lacunae. Osteocytes are the mature bone cells that are responsible for maintaining the bone tissue, and lacunae are the small spaces in the bone matrix where the osteocytes are located. Compact bone is dense and forms the outer layer of bones, while spongy bone is less dense and is found in the interior of bones. Both types of bone have osteocytes and lacunae embedded within their structure.Rate this question:
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- 43.
Has lamellae
- A.
Compact
- B.
Spongy
- C.
Both
Correct Answer
C. BothExplanation
The correct answer is "both" because the statement "has lamellae" refers to compact bone, which contains concentric rings of bone matrix called lamellae. Additionally, the statement "spongy" refers to spongy bone, which has a lattice-like structure with trabeculae. Therefore, both compact and spongy bone have lamellae.Rate this question:
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- 44.
Has trabeculae
- A.
Compact
- B.
Spongy
- C.
Both
Correct Answer
B. SpongyExplanation
The correct answer is "spongy." This suggests that the object being described has trabeculae, which are small, branching structures found in spongy bone tissue. Compact bone tissue, on the other hand, is dense and solid, lacking trabeculae. Therefore, the presence of trabeculae indicates that the object is spongy in nature.Rate this question:
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- 45.
Has perforating canals
- A.
Compact
- B.
Spongy
- C.
Both
Correct Answer
A. CompactExplanation
The correct answer is "compact". Compact bone is a dense and solid type of bone tissue that makes up the outer layer of bones. It is characterized by its tightly packed structure with minimal space between the bone cells. Compact bone contains Haversian systems, which consist of concentric rings of bone tissue surrounding a central canal that houses blood vessels and nerves. These canals are connected by perforating canals, which allow for the exchange of nutrients and waste products between different Haversian systems. Therefore, compact bone has perforating canals.Rate this question:
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- 46.
Located in epiphyses
- A.
Compact
- B.
Spongy
- C.
Both
Correct Answer
B. SpongyExplanation
The correct answer is "spongy" because spongy bone tissue is located in the epiphyses of long bones. Spongy bone, also known as cancellous bone, is made up of a network of trabeculae that create a porous structure. This type of bone tissue is found at the ends of long bones and in the interior of flat bones. It provides support and helps to reduce the weight of the bone, making it lighter and more flexible.Rate this question:
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- 47.
Located in diaphysis
- A.
Compact
- B.
Spongy
- C.
Both
Correct Answer
A. CompactExplanation
The correct answer is "compact" because the term "located in diaphysis" refers to the compact bone. The diaphysis is the shaft of a long bone, and it is primarily composed of compact bone tissue. Compact bone is dense and solid, providing strength and support to the bone. In contrast, spongy bone is found at the ends of long bones and is more porous in nature. Therefore, the answer "compact" is the most appropriate choice based on the given information.Rate this question:
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- 48.
Has central canal
- A.
Compact
- B.
Spongy
- C.
Both
Correct Answer
A. CompactExplanation
The correct answer is "compact" because compact bone is dense and solid, providing strength and support to the skeleton. It is found in the outer layer of bones and forms the majority of the bone tissue. Compact bone also contains the central canal, which houses blood vessels and nerves. In contrast, spongy bone is porous and contains trabeculae, while the central canal is not present in this type of bone. Therefore, the answer "compact" is the most appropriate choice based on the given information.Rate this question:
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- 49.
Has canaliculi
- A.
Compact
- B.
Spongy
- C.
Both
Correct Answer
C. BothExplanation
The correct answer is "both" because the term "canaliculi" refers to small channels or passageways that connect the lacunae in compact and spongy bone tissue. Therefore, both compact and spongy bone tissue have canaliculi.Rate this question:
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- 50.
The hradness of bones is due to
- A.
Osteocytes
- B.
Lamellae
- C.
Osteons
- D.
Mineral salts
Correct Answer
D. Mineral saltsExplanation
The hardness of bones is due to the presence of mineral salts. These mineral salts, such as calcium and phosphate, contribute to the strength and rigidity of bones. They form a dense matrix within the bone tissue, providing structural support and resistance to compression. Without mineral salts, bones would be more flexible and prone to fractures. Osteocytes, lamellae, and osteons are all components of bone tissue but do not directly contribute to the hardness of bones.Rate this question:
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Current Version
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May 26, 2023Quiz Edited by
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Oct 10, 2009Quiz Created by
Rebecca6890
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