Introduction Answers

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4

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7

Where are you likely to find cartilage? Select all that apply.

A
in the skeleton of a fetus
B
in the center of a mature bone
C
covering the ends of long bones
D
in between the bones of the spine
9

Osteoblasts and osteoclasts are both:

A
types of bone cells.
B
components of the bone matrix.
C
nutrients absorbed from food.
D
found only in the fetal skeleton.
10

Which are components of the bone matrix? Select all that apply.

A
minerals
B
epiphysis
C
collagen fibers
D
blood vessels
11

Ossification is the process of bone development from:

A
fibers or cartilage.
B
ligaments or muscle.
C
epiphysis or diaphysis.
D
osteoblasts or osteoclasts.
13

Osteoporosis is a disease characterized by:

A
low bone density.
B
slow bone growth.
C
unhealthy bone marrow.
D
poor blood supply to bones.
14

Weight-bearing exercise helps make bone stronger, because:

A
there is no risk of fracture with exercise.
B
exercise causes more calcium to enter the body.
C
bone grows stronger in response to the stresses put on it.
D
exercise triggers the expansion of epiphyseal plates.
17

The function of a ligament is to:

A
produce blood cells.
B
attach muscles to bones.
C
stabilize joints during movement.
D
create new cartilage and bone cells.
20

Calcium and phosphate are important parts of the bone matrix because they:

A
provide flexibility to bone.
B
promote the formation of cartilage.
C
provide strength and durability to bone.
D
produce blood cells in the bone marrow.

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