A&P I Quiz 4 Name ___________________________________________________
Russo
T/F
1) An osteon contains osteocytes, lamellae, and a central canal, and is found in compact
bone only.
Answer: TRUE
Diff: 1
Page Ref: 181
2) Each consecutive bone lamella has collagen fibers that wrap in alternating directions.
Answer: TRUE
Diff: 2
Page Ref: 181
Multiple Choice
3) The canal that runs through the core of each osteon (the Haversian canal) is the site of
________.
A) cartilage and interstitial lamellae
B) adipose tissue and nerve fibers
C) yellow marrow and spicules
D) blood vessels and nerve fibers
Answer: D
Diff: 1
Page Ref: 181
4) The process of bones increasing in width is known as ________.
A) closing of the epiphyseal plate
B) epiphyseal plate closure
C) appositional growth
D) concentric growth
Answer: C
Diff: 1
Page Ref: 186
5) Bones are constantly undergoing resorption for various reasons. Which of the
following cells accomplishes this process?
A) osteoclast
B) osteocyte
C) osteoblast
D) stem cell
Answer: A
Diff: 1
Page Ref: 187
Xtra Credit (1 point)
1) Lengthwise, long bone growth during infancy and youth is exclusively through
________.
A) interstitial growth of the epiphyseal plates
B) the secretion of bone matrix into the medullary cavity
C) differentiation of osteoclasts into osteocytes
D) calcification of the matrix of the zone underlying articular cartilage
Answer: A
Diff: 2
Page Ref: 185-186