General Concepts #2 – Skeletal System (2009)

Question 1

All of the following are functions of the skeletal system EXCEPT:

a) Hematopoiesis
b) Allow movement
c) Storage of 90% of potassium
d) Support soft tissue
e) Protect organs

Answer 1

c) Storage of 90% of potassium

Question 2

Which of the following is part of the axial skeleton?

a) Thoracic cage
b) Pectoral girdle
c) Pelvic girdle
d) Arms
e) Legs

Answer 2

a) Thoracic cage

Question 3

What type of bone is described as two parallel compact bone segments “sandwiching”
a spongy bone segment?
a) Sesamoid (patella)
b) Irregular (vertebrae)
c) Long (humerus)
d) Short (wrist)
e) Flat (sternum)

Answer 3

e) Flat (sternum)

Question 4

On a long bone, the medullary cavity is bounded superficially/distally by:

a) Periosteum
b) Endosteum
c) Metaphysis
d) Diaphysis
e) Epiphysis

Answer 4

b) Endosteum

Question 5

Osteoblasts:

a) Arise from osteoids
b) Create osteoprogenitors
c) Dissolve bone matrix
d) Build bone matrix
e) Are in the bone lacunea

Answer 5

d) Build bone matrix

Question 6

Which of the following best describes when new bone arises from cartilage?

a) Intramembranous ossification
b) Bone compaction
c) Endochondral ostification
d) Spongy compaciton
e) Osteoclastification

Answer 6

c) Endochondral ostification

Question 7

What type of artery pierces the diaphysis to supply the medullary cavity?

a) Nutrient artery
b) Epiphysial artery
c) Metaphysial artery
d) Endosteal artery
e) Periosteal artery

Answer 7

a) Nutrient artery