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Skeletal System - Practice
Multiple Choice
Identify the choice that best completes the statement or answers the question.
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1. Which of the following is NOT part of the axial skeleton?
a. skull
c. pelvis
b. vertebral column
d. rib cage
2. Which of the following is true about red marrow?
a. It makes blood cells.
b. It stores fat.
c. It produces new bone.
d. It is found in compact bones of adults.
Figure 36-1
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3. Which diagram in Figure 36-1 is an example of a ball-and-socket joint?
a. Diagram A
c. Diagram C
b. Diagram B
d. Diagram D
4. A saddle joint is represented in which diagram in Figure 36-1?
a. Diagram A
c. Diagram C
b. Diagram B
d. Diagram D
5. Which of the following provides support for the body, attachment sites for muscles, and protection for
internal organs?
a. skin
c. skeleton
b. spinal cord
d. joints
6. Which of the following is NOT a function of bones in the human skeletal system?
a. storing minerals
c. moving body parts
b. regulating body temperature
d. protecting organs
7. The periosteum is a
a. place for storing fat cells.
b. location for red blood cell production.
c. tough layer of connective tissue surrounding a bone.
d. latticework structure that adds strength to the bone.
____ 8. Of what is the skeleton of an embryo mainly composed?
a. bone
c. bone marrow
b. cartilage
d. growth plates
____ 9. Ligaments connect
a. cartilage to bone.
c. bone to muscle.
b. muscle to muscle.
d. bone to bone.
____ 10. A tarsal would be considered what shape of bone?
a. long
c. irregular
b. short
d. sesamoid
Completion
Complete each statement.
11. A less dense tissue known as ____________________ is found in the ends of long bones and in the middle
part of short, flat bones.
12. The joints between adjacent vertebrae are slightly ____________________ joints.
13. The vertebral column and skull are part of the ____________________ skeleton.
14. The process by which cartilage is replaced by bone is ____________________.
15. What joint would you find at the proximal epiphysis of the humerus?
Short Answer
16. Where is cartilage located in an adult human? Why is cartilage necessary?
17. What are three functions of the human skeleton?
18. What type of freely movable joint is being illustrated in Figure 36-3?
Figure 36-3
Essay
19. Name the types (not shapes) of joints. Give an example of each type.
Skeletal System - Practice
Answer Section
MULTIPLE CHOICE
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
C
A
A
D
C
B
C
B
D
B
PTS:
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PTS:
PTS:
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PTS:
1
1
1
1
1
1
1
1
1
1
REF:
REF:
REF:
REF:
REF:
REF:
REF:
REF:
REF:
p. 921
p. 922
p. 924
p. 924
p. 921
p. 921
p. 922
p. 922
p. 925
COMPLETION
11. ANS: spongy bone
PTS: 1
12. ANS: movable
REF: p. 922
PTS: 1
13. ANS: axial
REF: p. 924
PTS: 1
14. ANS: ossification
REF: p. 921
PTS: 1
REF: p. 923
15. ANS: Ball and socket
PTS: 1
SHORT ANSWER
16. ANS:
Cartilage is found in parts of the body where flexibility is needed, such as the tip of the nose and the external
ear. It is also located where bones are attached to the sternum, which allows the rib cage to move during
breathing.
PTS: 1
REF: p. 922
17. ANS:
Answers should include any three of the following five functions: supporting the body, protecting internal
organs, allowing movement, storing mineral reserves, providing a site for blood cell formation.
PTS: 1
REF: p. 921
18. ANS:
hinge
PTS: 1
REF: p. 924
ESSAY
19. ANS:
The types of joints are fibrous (immovable joints), cartilaginous (slightly movable joints), and synopvial
(freely movable joints). The places where the bones in the skull meet are fibrous joints. Joints between the
two bones of the lower leg and the joints between adjacent vertebrae are examples of cartilaginous joints.
Synovial joints include ball-and-socket joints (hip & shoulder), hinge joints(elbow), and saddle joints
(thumb).
PTS: 1
REF: p. 924