Question 1

One effect of aging on the skeletal system is

Accepted Answer

A)  decreased collagen fibers.
B)  Decreased bone matrix and decreased collagen fibers are effects of aging.
C)  decreased bone matrix.
D)  increased bone density.
E)  increased elastic fibers.F) A) and E)
G) C) and E)

Question 2

The longitudinal growth of long bones ceases when

Accepted Answer

A)  chondroblasts take over mitosis of osteoblasts.
B)  the epiphyseal plate is completely replaced with bone tissue.
C)  the periosteum is completed.
D)  the epiphysis becomes separated from the diaphysis.
E)  the bone marrow forms.F) B) and E)
G) A) and B)

Question 3

When blood vessels become surrounded by concentric lamella forming osteons,the bone will grow in

Accepted Answer

A)  length.
B)  diameter.
C)  the epiphyseal plate.
D)  the articular cartilage.
E)  all of these areas.F) B) and C)
G) B) and E)

Question 4

Proteoglycan molecules in the matrix of cartilage

Accepted Answer

A)  give cartilage its resilient nature.
B)  replace collagen fibers in the matrix.
C)  make the perichondrium very stretchable.
D)  fill the lacunae.
E)  make cartilage hard and compact.F) A) and E)
G) B) and E)

Question 5

Ligaments attach

Accepted Answer

A)  muscle to bone.
B)  nerve to muscle.
C)  bone to bone.
D)  muscle to muscle.
E)  nerve to bone.F) A) and D)
G) A) and C)

Question 6

The parietal bone is formed by ___________

Accepted Answer

A)   endochondral ossification
B)   intramembranous ossificationC) A) and B)
D) undefined

Question 7

Osteoclasts and osteoblasts that travel through or across the bone surface removing and replacing old bone matrix are collectively called a(n) _____.

Accepted Answer

A)   callus multicellular unit
B)   osteon
C)   osteogenic repair unit
D)   basic multicellular unit
E)   bone reformation unitF) D) and E)
G) C) and E)

Question 8

Which type of bone has concentric lamellae?

Accepted Answer

A)  compact bone
B)  both spongy and compact
C)  spongy boneD) A) and B)
E) B) and C)

Question 9

Which of the following statements regarding PTH (parathyroid hormone) is true?

Accepted Answer

A)  PTH causes increased Na+ reabsorption in the kidneys.
B)  PTH causes increased reabsorption of Ca2+ in the kidneys.
C)  PTH causes increased loss of Ca2+ from the kidneys.
D)  PTH causes decreased uptake of Ca2+ from the small intestine.
E)  PTH causes decreased vitamin D formation in the kidneys.F) A) and B)
G) A) and E)

Question 10

Long bones grow in length at the

Accepted Answer

A)  endosteum-periosteum junction.
B)  articular cartilage.
C)  center of the shaft.
D)  center of the epiphysis.
E)  epiphyseal plate.F) C) and E)
G) A) and B)

Question 11

The ethmoid and sphenoid bones are formed by ___________

Accepted Answer

A)   intramembranous ossification
B)   endochondral ossificationC) A) and B)
D) undefined

Question 12

A passageway connecting neighboring osteocytes in an osteon is a

Accepted Answer

A)  lacuna.
B)  lamella.
C)  osteocanal.
D)  canaliculus.
E)  central canal.F) A) and B)
G) C) and D)

Question 13

Sixty-five year old Stephen has knee replacement surgery which requires a thin section of his distal femur to be removed.Which of the following statements is true?

Accepted Answer

A)   Due to the invasive nature of the surgical procedure,Stephen is at risk for osteomyelitis,a bacterial infection of bone.
B)   Stephen has no risk of osteomyelitis because he tests negative for Staphylococcus aureus when given a skin swab.
C)   The health care team informs Stephen he is at high risk for osteomyelitis due to his age.
D)   As long as the surgery has minimal bleeding,Stephen will have no risk for developing osteomyelitis.E) All of the above
F) C) and D)

Question 14

Cartilage

Accepted Answer

A)  is surrounded by a membrane called the periosteum.
B)  is composed of osteons.
C)  is well vascularized.
D)  contains chondrocytes located in lacunae.
E)  does not need nutrients and oxygen so it has no blood vessels.F) C) and E)
G) C) and D)

Question 15

Which type of bone is considered dense bone?

Accepted Answer

A)  compact bone
B)  spongy bone
C)  both spongy and compactD) A) and B)
E) None of the above

Question 16

Which of the following matrix molecules in cartilage tends to trap large quantities of water?

Accepted Answer

A)  proteoglycan
B)  hyaluronic acid
C)  elastin
D)  collagen
E)  chondrocytesF) A) and D)
G) C) and E)

Question 17

In which type of bone would trabeculae be present?

Accepted Answer

A)  spongy bone
B)  compact bone
C)  both spongy and compactD) All of the above
E) A) and B)

Question 18

Which of the following is NOT a function of bone?

Accepted Answer

A)  blood cell formation
B)  support
C)  calcium storage
D)  immunity
E)  movementF) C) and D)
G) A) and C)

Question 19

A band of connective tissue that attaches a muscle to a bone is a(n)

Accepted Answer

A)  bursa.
B)  aponeurosis.
C)  epimysium.
D)  tendon.
E)  ligament.F) A) and B)
G) A) and C)

Question 20

Lamellar bone

Accepted Answer

A)  is very light in weight.
B)  has a porous appearance.
C)  has its collagen fibers randomly oriented.
D)  is organized into thin sheets of tissue.
E)  is not easily restructured.F) B) and D)
G) B) and C)

Exam 6: Skeletal System: Bones and Bone Tissue

Long bones grow in length at the

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The longitudinal growth of long bones ceases when

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Ligaments attach

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The ethmoid and sphenoid bones are formed by ___________

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Which of the following matrix molecules in cartilage tends to trap large quantities of water?

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Lamellar bone

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A band of connective tissue that attaches a muscle to a bone is a(n)

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Cartilage

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One effect of aging on the skeletal system is

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When blood vessels become surrounded by concentric lamella forming osteons,the bone will grow in

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In which type of bone would trabeculae be present?

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Which type of bone is considered dense bone?

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The parietal bone is formed by ___________

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Which of the following statements regarding PTH (parathyroid hormone) is true?

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Which type of bone has concentric lamellae?

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A passageway connecting neighboring osteocytes in an osteon is a

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Proteoglycan molecules in the matrix of cartilage

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Osteoclasts and osteoblasts that travel through or across the bone surface removing and replacing old bone matrix are collectively called a(n) _____.

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Sixty-five year old Stephen has knee replacement surgery which requires a thin section of his distal femur to be removed.Which of the following statements is true?

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Which of the following is NOT a function of bone?

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