Chapter 50: Structure and Function of the Musculoskeletal System

Chapter 50: Structure and Function of the Musculoskeletal System

Complete Chapter Questions With Answers

Sample Questions Are Posted Below

MULTIPLE CHOICE
1. Osteoclast activity leads to
a. hardening of the bones.
b. resorption of bone.
c. deposition of bone.
d. arthritis.
ANS: B
Osteoclast activity leads to resorption of bone. Osteoclast activity does not lead to hardening of the bones, deposition of bone, or
arthritis.
REF: Pg. 1001
2. Osteoblastic activity is greatest
a. in areas of increased mechanical stress.
b. during menopause.
c. with vitamin D deficiency.
d. with disuse due to immobility.
ANS: A
Osteoblastic activity is greatest in areas of increased mechanical stress. Decreased estrogen during menopause decreases
osteoblastic activity. Vitamin D deficiency and disuse due to immobility increase bone resorption.
REF: Pgs. 1003-1004
3. Diarthroses are joints that
a. hold the skull bones together.
b. allow little or no joint movement.
c. contain synovial fluid.
d. connect bony segments by a fibrocartilaginous plate.
ANS: C
Diarthroses are joints that contain synovial fluid. Suture joints are found in the skull. A fibrous joint allows for little or no
movement. A symphysis joint connects bony segments by a fibrocartilaginous plate.
REF: Pg. 1007
4. Articular cartilage is avascular and
a. completely incapable of regeneration.
b. nonliving.
c. nourished by synovial fluid.
d. rarely damaged.
ANS: C
Articular cartilage is avascular and nourished by synovial fluid. Articular cartilage is very limited in its ability to regenerate.
Articular cartilage is living material and is frequently damaged.
REF: Pg. 1010
5. The primary determinant of tendon strength is
a. collagen cross-linking.
b. actin-myosin cross-bridging.
c. elastin composition.
d. calcium balance.
ANS: A
The primary determinant of tendon strength is collagen cross-linking. The primary determinant of tendon strength is not
actin-myosin cross-bridging or calcium balance. Tendons contain very little elastin.