IWU Anatomy Exam 3 Study Guide (no bones pictures)

Which one of the following is part of the axial skeleton?

• rib

• ulna

• tibia

• radius

• humerus

An irregular bone example includes:

• humerus

• tibia

• coxal bone

• rib

• carpal

Bones are an insignificant (not important) site of mineral storage in the body.

• True

• False

Which of the following is a bone marking described as a large, rounded projection of bone that may be roughened?

• ramus

• tuberosity

• tubercle

• epicondyle

Which of the following is a round or oval opening through a bone?

• sinus

• epicondyle

• foramen

• ramus

The tibia and fibula develop by...

• ossification following breakdown of a hyaline cartilage scaffold (model).

• endochondral ossification.

• addition of bone to a fibrous connective tissue membrane.

• intramembranous ossification.

• C and D only.

The inorganic portion of bone includes...

• a matrix of ground substance and collagen.

• hydroxyapatites to increase hardness.

• mineral salts to increase flexibility.

• elastin to increase resistance to compression.

• mineral salts to increase tensile strength.

A perforating (Volkmann's) canal...

• runs perpendicular (at a 90 degree angle) to the Haversian (central) canal

• runs parallel to the Haversian (central) canal

• contains only red bone marrow

• is found only in spongy bone

The term diploë refers to the...

• two types of marrow found within most bones.

• fact that most bones are formed of two types of bone tissue.

• internal layer of spongy bone in flat bones.

• double-layered nature of the connective tissue covering the bone.

Which one of the following statements is true about bone remodeling?

• Mechanical forces like weight-bearing exercise appear to have no affect on bone remodeling.

• The two members of the bone remodeling unit are osteoclasts and osteocytes.

• Calcitonin stimulates bone decalcification.

• In a healthy skeleton osteoblasts are more active than osteoclasts.

• Parathyroid hormone favors osteoclasts inactivation and the uptake of calcium into the bone.

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