Anatomy Test Chapter Six && Seven! Bio 210

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Anatomy Test Chapter Six && Seven! Bio 210 - Quiz


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Questions and Answers
  • 1. 

    Which is not a function of the skeletal structure?

    • A.

      Support

    • B.

      Movement

    • C.

      Storage

    • D.

      Protection

    Correct Answer
    B. Movement
    Explanation
    The skeletal structure is responsible for providing support to the body, allowing movement, storing minerals such as calcium, and protecting vital organs. However, movement is not a function of the skeletal structure as it is primarily controlled by muscles. The skeletal structure provides a framework for muscles to attach to and move the body, but it does not directly initiate or control movement.

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  • 2. 

    Support, storage, blood cell production, protection, and leverage are functions of the skeletal structure.

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    The skeletal structure performs various functions such as support, storage, blood cell production, protection, and leverage. It provides support to the body, allowing us to stand upright and maintain our posture. The bones also act as a storage site for minerals like calcium and phosphorus. Additionally, certain bones in the body, such as the marrow in the long bones, are responsible for the production of blood cells. The skeletal structure also protects vital organs like the brain, heart, and lungs. Finally, the bones serve as levers, enabling movement and allowing us to perform various activities. Therefore, the given statement is true.

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  • 3. 

    Blood cell formation occurs in

    • A.

      Yellow bone marrow

    • B.

      Red bone marrow

    • C.

      The matrix of bone tissue

    • D.

      The ground substance of bones

    Correct Answer
    B. Red bone marrow
    Explanation
    Red bone marrow is responsible for the formation of blood cells in the body. It contains hematopoietic stem cells, which have the ability to differentiate into various types of blood cells, including red blood cells, white blood cells, and platelets. This process, known as hematopoiesis, occurs within the red bone marrow, specifically in the spongy or cancellous bone. Yellow bone marrow, on the other hand, consists mainly of adipose tissue and does not play a significant role in blood cell formation. The matrix of bone tissue and the ground substance of bones provide structural support and minerals to bones, but they do not directly participate in blood cell formation.

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  • 4. 

    Two-thirds of the weight of bone is accounted for by

    • A.

      Crystals of calcium phosphate

    • B.

      Collagen fibers

    • C.

      Osteocytes

    • D.

      Calcium carbonate

    Correct Answer
    A. Crystals of calcium phosphate
    Explanation
    The correct answer is crystals of calcium phosphate. This is because calcium phosphate is the main mineral component of bone, accounting for two-thirds of its weight. It provides the bone with strength and rigidity, while collagen fibers provide flexibility and osteocytes are responsible for maintaining bone tissue. Calcium carbonate is not a major component of bone and does not contribute significantly to its weight.

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  • 5. 

    The membrane found wrapping the bones, except at the joint cavity, is the

    • A.

      Periosteum

    • B.

      Endosteum

    • C.

      Perforating fibers

    • D.

      All of the above

    Correct Answer
    A. Periosteum
    Explanation
    The correct answer is periosteum because it is the membrane that covers the surface of the bones, except for the joint cavity. The periosteum provides nourishment to the bone and aids in its growth and repair. The endosteum, on the other hand, lines the inner surface of the bone, while the perforating fibers connect the periosteum to the underlying bone. However, both the endosteum and perforating fibers are not found wrapping the bones like the periosteum. Therefore, the correct answer is periosteum.

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  • 6. 

    The basic functional unit of compact bone is the Haversian system or

    • A.

      Osteocyte

    • B.

      Osteoclast

    • C.

      Osteon

    • D.

      Osseous matrix

    • E.

      Osseous lamellae

    Correct Answer
    C. Osteon
    Explanation
    The basic functional unit of compact bone is the osteon. An osteon is a cylindrical structure that consists of concentric layers of bone tissue called lamellae. It contains osteocytes, which are mature bone cells, and is surrounded by a central canal called the Haversian canal. The osteocytes are responsible for maintaining the bone tissue and regulating its mineral content. The osteon provides strength and support to the bone, allowing it to withstand mechanical stress. Therefore, the osteon is the correct answer as it accurately represents the functional unit of compact bone.

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  • 7. 

    The vitamins essential for normal adult bone maintenance and repair are

    • A.

      A and E

    • B.

      C and D

    • C.

      B and E

    • D.

      B complex and K

    Correct Answer
    B. C and D
    Explanation
    Vitamins C and D are essential for normal adult bone maintenance and repair. Vitamin C plays a crucial role in collagen synthesis, which is a key component of bone tissue. It also helps in the absorption of calcium, which is necessary for bone health. Vitamin D, on the other hand, aids in the absorption and utilization of calcium and phosphorus, which are vital for bone mineralization. Therefore, a combination of vitamins C and D is necessary to support the maintenance and repair of adult bones.

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  • 8. 

    The hormones that coordinate the storage absorption, and excretion of calcium ions are

    • A.

      Growth hormone and thyroxine

    • B.

      Calcitonin and parathyroid hormone

    • C.

      Calcitriol and cholecalciferol

    • D.

      Estrogens and androgens

    Correct Answer
    B. Calcitonin and parathyroid hormone
    Explanation
    Calcitonin and parathyroid hormone are the hormones that coordinate the storage, absorption, and excretion of calcium ions. Calcitonin helps to decrease blood calcium levels by inhibiting calcium release from bones and increasing calcium excretion by the kidneys. Parathyroid hormone, on the other hand, increases blood calcium levels by stimulating calcium release from bones, increasing calcium absorption in the intestines, and reducing calcium excretion by the kidneys. Together, these hormones work to maintain the balance of calcium in the body.

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  • 9. 

    There are five ways to classify bones

    • A.

      True

    • B.

      False

    Correct Answer
    B. False
    Explanation
    The statement "there are five ways to classify bones" is false. There are actually two main ways to classify bones: by shape and by location. The shape classification categorizes bones into long, short, flat, and irregular bones. The location classification divides bones into axial bones (found in the central axis of the body) and appendicular bones (found in the limbs and girdles). Therefore, the correct answer is false because there are only two ways to classify bones, not five.

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  • 10. 

    The six ways to classify bones are: 1. long bones 2. short bones 3. flat bones 4. irregular bones 5. seamoid bones 6. sutural bones

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    The statement is true because the six ways to classify bones listed are indeed accurate. Long bones are characterized by their elongated shape, short bones are small and cube-shaped, flat bones are thin and flat, irregular bones have a unique shape that does not fit into any other category, sesamoid bones are small and embedded within tendons, and sutural bones are found within the sutures of the skull. These classifications help to categorize and identify different types of bones in the human body.

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  • 11. 

    The presence of an epiphyseal line indicates

    • A.

      Epiphyseal growth has ended

    • B.

      Epiphyseal growth is just beginning

    • C.

      Growth of bone diameter is just beginning

    • D.

      The bone is fractured at the location

    • E.

      No particular event

    Correct Answer
    A. Epiphyseal growth has ended
    Explanation
    The presence of an epiphyseal line indicates that epiphyseal growth has ended. The epiphyseal line is a thin, smooth line that forms when the epiphyseal plate, which is responsible for bone growth, closes. This closure occurs during late adolescence or early adulthood, signaling the end of bone growth in length. Therefore, the presence of an epiphyseal line suggests that the bone has reached its maximum length and further growth in that area is unlikely.

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  • 12. 

    The primary reason that osteoporosis accelerates after menopause in women is

    • A.

      Reduced levels of circulating estrogens

    • B.

      Reduced levels of vitamin C

    • C.

      Diminished osteoclast activity

    • D.

      Increased osteoblast activity

    Correct Answer
    A. Reduced levels of circulating estrogens
    Explanation
    After menopause, women experience a significant decrease in the production of estrogen, a hormone that plays a crucial role in maintaining bone density. Estrogen helps to inhibit bone breakdown by reducing the activity of osteoclasts, cells responsible for breaking down old bone tissue. Therefore, when estrogen levels decrease, osteoclast activity increases, leading to accelerated bone loss and the development of osteoporosis. This explanation highlights the primary reason for the acceleration of osteoporosis after menopause, which is the reduced levels of circulating estrogens.

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  • 13. 

    The nonpathologic loss of bone that occurs with again is called

    • A.

      Osteomyelitis

    • B.

      Osteoporosis

    • C.

      Osteopenia

    • D.

      Osteiitis

    • E.

      Osteomalacia

    Correct Answer
    C. Osteopenia
    Explanation
    Osteopenia is the correct answer because it refers to the nonpathologic loss of bone that occurs with aging. It is a condition where the bone mineral density is lower than normal, but not low enough to be classified as osteoporosis. Osteoporosis, on the other hand, is a more severe condition characterized by significant bone loss and increased risk of fractures. Osteomyelitis is a bone infection, osteitis refers to inflammation of the bone, and osteomalacia is a softening of the bones usually caused by a deficiency in vitamin D or calcium.

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  • 14. 

    The process of bone  growth at the epiphyseal cartilage is similar to

    • A.

      Intramembranous ossification

    • B.

      Endochondral ossification

    • C.

      The process of osteopenia

    • D.

      The process of healing a fracture

    • E.

      The process of calcification

    Correct Answer
    B. Endochondral ossification
    Explanation
    The process of bone growth at the epiphyseal cartilage is similar to endochondral ossification. Endochondral ossification is the process by which bone replaces cartilage during growth and development. In this process, a cartilage model is first formed and then gradually replaced by bone tissue. Similarly, at the epiphyseal cartilage, new bone tissue is formed and replaces the cartilage, leading to bone growth. This process is different from intramembranous ossification, which occurs directly from mesenchymal cells without a cartilage intermediate, and also different from the process of osteopenia, which refers to bone loss. Additionally, it is not related to the process of healing a fracture or the process of calcification.

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  • 15. 

    Which of the following conditions would you possibly observe in a child who is suffering from rickets?

    • A.

      Abnormally short limbs

    • B.

      Abnormally long limbs

    • C.

      Oversized facial bones

    • D.

      Bowed legs

    • E.

      Weal, brittle bones

    Correct Answer
    D. Bowed legs
    Explanation
    In rickets, a condition caused by a deficiency in vitamin D, the bones become weak and soft. This can lead to deformities such as bowed legs, where the legs curve outward instead of being straight. This occurs because the weakened bones are unable to support the weight of the body properly. Therefore, observing bowed legs in a child may indicate that they are suffering from rickets.

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  • 16. 

    Frank doe not being puberty until he is 16, what effect would you predict this will have on his stature?

    • A.

      Frank will probably be taller than if he had started puberty earlier

    • B.

      Frank will probably be shorter than if he had started puberty earlier

    • C.

      Frank will probably be a dwarf

    • D.

      Frank will have bones that are heavier that normal

    • E.

      The late onset of puberty will have no effect on frank's stature

    Correct Answer
    A. Frank will probably be taller than if he had started puberty earlier
    Explanation
    The correct answer is that Frank will probably be taller than if he had started puberty earlier. This is because puberty is the period of rapid growth and development, including the growth spurt. If Frank starts puberty later, he will have more time for growth and may therefore reach a taller height compared to those who start puberty earlier and have a shorter growth period.

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  • 17. 

    An adult skeleton has 206 major bones

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    An adult skeleton has 206 major bones. This is true because the human skeleton is made up of 206 bones, which provide support, protection, and movement for the body. These bones include the skull, spine, ribs, arms, legs, and many others. The number of bones in the skeleton can vary slightly from person to person, but on average, it is accepted that there are 206 major bones in the adult human skeleton.

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  • 18. 

    You can find long bones in what area of the body?

    • A.

      Skull

    • B.

      Forearm

    • C.

      Knees

    • D.

      Answer option 4

    Correct Answer
    B. Forearm
    Explanation
    Long bones can be found in the forearm. Long bones are characterized by their elongated shape, with a shaft and two ends. The forearm consists of two long bones called the ulna and radius, which run parallel to each other. These bones provide support and mobility to the forearm, allowing for movements such as rotation and flexion.

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  • 19. 

    The forearm is the largest and heaviest bone in the body

    • A.

      True

    • B.

      False

    Correct Answer
    B. False
    Explanation
    The forearm is not the largest and heaviest bone in the body. The femur, or thigh bone, is the largest and heaviest bone in the body. The forearm consists of two bones, the radius and the ulna, which are smaller and lighter in comparison to the femur. Therefore, the statement is false.

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  • 20. 

    The femur is the largest and heaviest bone in the body

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    The femur, also known as the thigh bone, is indeed the largest and heaviest bone in the human body. It is located in the upper leg, extending from the hip to the knee. Its size and weight are necessary to support the body's weight and provide stability and strength for activities such as walking, running, and jumping.

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  • 21. 

    The osseous tissue is made of

    • A.

      Dense and compact

    • B.

      Compact and spongy

    • C.

      Dense and spongy

    • D.

      Answer option 4

    Correct Answer
    B. Compact and spongy
    Explanation
    The osseous tissue is made up of both compact and spongy bone. Compact bone is dense and forms the outer layer of bones, providing strength and support. Spongy bone, also known as cancellous bone, is found inside the compact bone and has a porous, honeycomb-like structure. It helps to reduce the weight of the bone while still maintaining its strength. Together, these two types of bone tissue work together to provide structure, protection, and support for the body.

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  • 22. 

    Three parts of the long bone is the diaphysis, epiphysis, and the metaphysis

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    The given statement is true. A long bone is composed of three main parts: the diaphysis, epiphysis, and metaphysis. The diaphysis is the shaft or main portion of the bone, while the epiphysis refers to the rounded ends of the bone. The metaphysis is the region between the diaphysis and epiphysis, where growth occurs during development. These three parts work together to provide structure, support, and facilitate bone growth and remodeling.

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  • 23. 

    The building cells or the 'supervisor' of a bone cell is called

    • A.

      Osteoblast

    • B.

      Osteogenesis

    • C.

      Osteocytes

    • D.

      Osteoprogenitor

    Correct Answer
    C. Osteocytes
    Explanation
    Osteocytes are the building cells or the "supervisors" of a bone cell. They are mature bone cells that are responsible for maintaining the bone tissue and regulating its metabolism. Osteocytes are involved in the processes of bone remodeling, repair, and mineralization. They communicate with each other and with other bone cells through small channels called canaliculi, allowing them to exchange nutrients and signals. Osteocytes play a crucial role in maintaining the strength and integrity of the bone structure.

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  • 24. 

    The 'worker' of the bone cell is called

    • A.

      Osteoblast

    • B.

      Osteocytes

    • C.

      Osteogenesis

    • D.

      Osteoprogenitor

    Correct Answer
    A. Osteoblast
    Explanation
    The correct answer is osteoblast. Osteoblasts are cells responsible for the formation of new bone and the secretion of collagen and other organic components needed for bone formation. They play a crucial role in bone development and repair. Osteocytes are mature bone cells that maintain and monitor the bone tissue. Osteogenesis refers to the process of bone formation, while osteoprogenitor cells are precursor cells that can differentiate into osteoblasts.

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  • 25. 

    Which two are major functions of the osteocytes

    • A.

      Make and release the proteins

    • B.

      Maintain and monitor the protein and mineral content

    • C.

      Participate in the repair f damaged bone

    • D.

      Divide to produce osteoblasts

    Correct Answer(s)
    B. Maintain and monitor the protein and mineral content
    C. Participate in the repair f damaged bone
    Explanation
    Osteocytes are mature bone cells that are responsible for maintaining and monitoring the protein and mineral content of the bone. They play a crucial role in regulating the balance between bone formation and resorption, ensuring the strength and integrity of the bone. Additionally, osteocytes also participate in the repair of damaged bone by secreting signaling molecules and coordinating the activity of other bone cells, such as osteoblasts and osteoclasts.

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  • 26. 

    Type question here

    • A.

      Answer option1

    • B.

      Answer option2

    • C.

      Answer option3

    • D.

      Answer option4

    Correct Answer
    A. Answer option1
  • 27. 

    Which two are major functions of the osteoblast

    • A.

      Make and release the proteins

    • B.

      Participate in the repair of damaged bone

    • C.

      Assist in elevating local concentrations of calcium phosphate

    • D.

      Maintain and monitor the protein and mineral content

    Correct Answer(s)
    A. Make and release the proteins
    C. Assist in elevating local concentrations of calcium phosphate
    Explanation
    Osteoblasts are responsible for the formation and mineralization of bone. They produce and release proteins, such as collagen, which are essential for bone formation. Additionally, osteoblasts assist in elevating local concentrations of calcium phosphate, which is necessary for the mineralization of bone. This process helps in the deposition of minerals, such as calcium and phosphate, onto the collagen matrix, resulting in the formation of strong and healthy bone tissue.

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  • 28. 

    What is the stem cell of the bone 

    • A.

      Osteocytes

    • B.

      Osteoblast

    • C.

      Osteogenesis

    • D.

      Osteoprogenitor

    Correct Answer
    D. Osteoprogenitor
    Explanation
    Osteoprogenitor cells are the stem cells of the bone. They are responsible for the formation of osteoblasts, which are the cells that build new bone tissue. Osteocytes, on the other hand, are mature bone cells that are involved in maintaining and remodeling existing bone tissue. Osteogenesis refers to the process of bone formation. Therefore, the correct answer is osteoprogenitor, as they are the cells that have the potential to differentiate into osteoblasts and initiate the formation of new bone.

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  • 29. 

    What are the two major functions of the osteoprogenitor

    • A.

      Divide to produce osteoblasts

    • B.

      Maintain populations of osteoblasts

    • C.

      Make and release the proteins

    • D.

      Participate in the repair of damaged bone

    Correct Answer(s)
    A. Divide to produce osteoblasts
    B. Maintain populations of osteoblasts
    Explanation
    Osteoprogenitor cells are responsible for dividing to produce osteoblasts, which are cells that build new bone tissue. These cells also maintain populations of osteoblasts, ensuring a continuous supply of cells for bone remodeling and repair. By dividing and maintaining osteoblast populations, osteoprogenitor cells play a crucial role in the growth, maintenance, and repair of bone tissue in the body.

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  • 30. 

    When osteoclasts remora calcium salts faster than osteoblasts deposit them, bones get stronger

    • A.

      True

    • B.

      False

    Correct Answer
    B. False
    Explanation
    The statement in the question suggests that when osteoclasts remove calcium salts faster than osteoblasts deposit them, bones get stronger. However, this statement is incorrect. Osteoclasts are responsible for breaking down bone tissue, while osteoblasts are responsible for depositing new bone tissue. When osteoclasts remove calcium salts faster than osteoblasts can deposit them, it leads to a net loss of bone mass, resulting in weaker bones. Therefore, the correct answer is False.

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  • 31. 

    Osteoclasts remora bone matrix

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    Osteoclasts are cells that are responsible for breaking down bone tissue. They secrete enzymes and acids that dissolve the bone matrix, allowing for the remodeling and repair of bone. Therefore, it is true that osteoclasts remove bone matrix.

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  • 32. 

    What is the function of compact bones

    • A.

      Compact bones react to stress and weakens

    • B.

      Compact bones react to stress and provides strength

    • C.

      Neither of these answers are correct

    • D.

      Both A and B are correct answers

    Correct Answer
    B. Compact bones react to stress and provides strength
    Explanation
    Compact bones have a crucial function in the skeletal system. They react to stress by remodeling and adapting to the load placed upon them. This process, known as bone remodeling, helps to strengthen the bones and make them more resistant to fractures. Therefore, compact bones not only react to stress but also provide strength to the skeletal structure.

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  • 33. 

    What are the functions of spongy bones

    • A.

      Provides strength

    • B.

      Located where there is little stress

    • C.

      Reduces the weight of the skeleton

    • D.

      Protects the cells of the bone marrow

    Correct Answer(s)
    B. Located where there is little stress
    C. Reduces the weight of the skeleton
    D. Protects the cells of the bone marrow
    Explanation
    Spongy bones are located where there is little stress, such as at the ends of long bones. This is because they are less dense and more flexible, allowing them to absorb shock and distribute forces evenly. Additionally, spongy bones help to reduce the weight of the skeleton by being less dense than compact bone. Lastly, spongy bones contain red bone marrow, which is responsible for producing blood cells and protecting the cells of the bone marrow.

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  • 34. 

    Which of the following actively participates in bone growth and repair

    • A.

      Endosteum

    • B.

      Periosteum

    • C.

      Both A and B are correct

    • D.

      Neither A or B are correct

    Correct Answer
    B. Periosteum
    Explanation
    The periosteum actively participates in bone growth and repair. It is a fibrous membrane that covers the outer surface of bones and contains osteoblasts, which are responsible for the formation of new bone tissue. The periosteum also contains blood vessels that supply nutrients and oxygen to the bone cells, aiding in their growth and repair. Additionally, the periosteum plays a role in anchoring tendons and ligaments to the bone, further contributing to bone stability and repair.

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  • 35. 

    Which of the following is active during bone growth, repair, and remodeling

    • A.

      Endosteum

    • B.

      Periosteum

    • C.

      Both A and B are correct

    • D.

      Neither A or B are correct

    Correct Answer
    A. Endosteum
    Explanation
    The endosteum is a thin layer of connective tissue that lines the inner surface of bones. It contains osteoblasts, which are responsible for bone formation, as well as osteoclasts, which are involved in bone resorption. During bone growth, repair, and remodeling, the endosteum plays a crucial role in the regulation and coordination of these processes. It provides a surface for osteoblasts to deposit new bone and helps in the resorption of old bone by osteoclasts. Therefore, the endosteum is active during bone growth, repair, and remodeling.

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  • 36. 

    Ossification has two forms; endochondral and intramembranous 

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    Ossification refers to the process of bone formation. It can occur in two different forms: endochondral ossification and intramembranous ossification. Endochondral ossification involves the replacement of cartilage with bone, while intramembranous ossification involves the direct formation of bone within a connective tissue membrane. Therefore, the statement that ossification has two forms, endochondral and intramembranous, is true.

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  • 37. 

    Endochondral ossification bones originate as hyaline cartilages

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    Endochondral ossification is a process by which bones develop from hyaline cartilage. During this process, hyaline cartilage gradually transforms into bone tissue. This occurs in most bones of the body, including long bones such as the femur and humerus. The cartilage serves as a template for bone formation, with the cartilage cells dying and being replaced by bone cells. This process is responsible for the growth and development of the skeletal system. Therefore, the statement that endochondral ossification bones originate as hyaline cartilages is true.

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  • 38. 

    Intramembranous ossification occurs in the deep layers of the epidermis

    • A.

      True

    • B.

      False

    Correct Answer
    B. False
    Explanation
    Intramembranous ossification is a process of bone formation that occurs within connective tissue membranes, not in the deep layers of the epidermis. The epidermis is the outermost layer of the skin, while intramembranous ossification takes place in the deeper layers of connective tissue, such as the periosteum or the dura mater. Therefore, the statement that intramembranous ossification occurs in the deep layers of the epidermis is incorrect.

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  • 39. 

    Which of the following isn't a blood and nerve supply

    • A.

      Nutrient artery and vein

    • B.

      Red blood cells

    • C.

      Metaphyseal vessels

    • D.

      Periosteal vessels

    Correct Answer
    B. Red blood cells
    Explanation
    Red blood cells are not a blood and nerve supply. They are responsible for transporting oxygen to tissues and removing carbon dioxide. However, they do not provide the blood and nerve supply to any specific area or organ in the body. Nutrient artery and vein, metaphyseal vessels, and periosteal vessels are all examples of blood vessels that supply blood and nutrients to specific areas such as bones and tissues.

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  • 40. 

    What are the steps to a fracture repair: 1. injury - fracture hematoma 2. bone replaces external callus 3. swelling 4. internal callus forms

    • A.

      1,2,3,4

    • B.

      1,3,4,2

    • C.

      1,4,2,3

    • D.

      1,4,3,2

    Correct Answer
    C. 1,4,2,3
    Explanation
    The correct order of steps in fracture repair is as follows:
    1. Injury - Fracture hematoma forms at the site of the fracture.
    2. Bone replaces external callus - The body begins to form a hard callus made of new bone around the fracture site.
    3. Swelling - Swelling occurs as a result of the injury and the body's inflammatory response.
    4. Internal callus forms - The body forms an internal callus, which is a network of new bone that stabilizes the fracture site internally.

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  • 41. 

    The axial skeleton components are:

    • A.

      The bones are associated with the skull

    • B.

      The bones are associated with the thoracic cage

    • C.

      The bones are associated with the arms and legs

    • D.

      The bones are associated with the vertebral column

    Correct Answer(s)
    A. The bones are associated with the skull
    B. The bones are associated with the thoracic cage
    D. The bones are associated with the vertebral column
    Explanation
    The axial skeleton components consist of the bones associated with the skull, thoracic cage, and vertebral column. These bones provide support and protection for the vital organs within these regions. The skull bones protect the brain, while the thoracic cage bones, such as the ribs and sternum, protect the heart and lungs. The vertebral column bones provide structural support for the body and protect the spinal cord. The bones associated with the arms and legs are not part of the axial skeleton, but rather the appendicular skeleton.

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  • 42. 

    the adult vertebral column or spine, consisted of how many bones?

    • A.

      40

    • B.

      27

    • C.

      18

    • D.

      26

    Correct Answer
    D. 26
    Explanation
    The adult vertebral column or spine consists of 26 bones. This is because the vertebral column is made up of individual vertebrae, and in an adult, there are 26 vertebrae in total. These vertebrae are divided into different regions such as cervical, thoracic, lumbar, sacral, and coccygeal, each with a specific number of vertebrae. Therefore, the correct answer is 26.

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  • 43. 

    How many bones does the cervical vertebrae consists of?

    • A.

      7

    • B.

      5

    • C.

      12

    • D.

      Answer option 4

    Correct Answer
    A. 7
    Explanation
    The cervical vertebrae consists of 7 bones. The cervical vertebrae are the first 7 vertebrae in the spine, located in the neck region. These bones provide support and flexibility to the neck and allow for the movement of the head.

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  • 44. 

    How many bones does the thoracic vertebrae consist of?

    • A.

      7

    • B.

      5

    • C.

      12

    • D.

      Answer option 4

    Correct Answer
    C. 12
    Explanation
    The thoracic vertebrae consist of 12 bones.

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  • 45. 

    How many bones does the lumbar vertebrae consists of?

    • A.

      7

    • B.

      5

    • C.

      12

    • D.

      Answer option 4

    Correct Answer
    B. 5
    Explanation
    The lumbar vertebrae consists of 5 bones.

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