6. Bones & Skeletal Tissue

Where would you be more likely to find red marrow and why?

Match the following terms with the correct definition.

____Long bone    

____Epiphysis    

____Nutrient artery    

____Flat bone    

____Short bone    

____Periosteum    

____Diaphysis    

____Medullary cavitya.

a. Main source of blood to the medullary cavity

b. Membrane surrounding the bone

c. Bone that is about as wide as it is long

d. Shaft of a long bone

e. Bone that is longer than it is wide

f. Canal running down the center of the diaphysis

g. End of a long bone

h. Bone that is broad and thin

What is the difference between a primary and secondary ossification center in a long bone?

Long bones grow in length from the:

a. Diaphyseal line

b. Epiphyseal line

c. Epiphyseal plate

d. Medullary cavity

Correctly order the following steps of bone growth in length by placing a 1 by the first step, a 2 by the second step, and so on.

Calcified cartilage is replaced with bone in the zone of ossification.

Chondrocytes in the zone of proliferation divide by mitosis.

Chondrocytes enter the zone of calcification and die as their matrix calcifies.

Chondrocytes enlarge and cease dividing.

The part of the epiphysis that does not ossify during a person's lifetime is the:

a. Articular surface

b. Secondary ossification center

c. Diaphyseal notch

d. Nutrient foramen

A bone with approximately the same width, length, and height is most likely:

a. A long bone

b. A short bone

c. A flat bone

d. An irregular bone

Why are stresses or impacts to the side of the shaft in a long bone more dangerous than stress applied to the long axis of the shaft?

Classify the bones in the following diagram according to their shape.

e. _____

What are the primary parts of a typical long bone?