Bone Classifciation

Question 1

Long bones

Answer 1

Longer than wide, have a diaphysis of compact bone, 2 epipthyses (compact bones surface with spongy bone inside), and a marrow cavity in the diaphysis, e.g. humerus, femur

Question 2

Short bones

Answer 2

Boxlike in appearance, external surface of compact bone with spongy bone in the center of the bones, e.g. carpals, tarsals

Question 3

Flat bones

Answer 3

Roughly parallel surfaces of compact bone with spongy bone in the center of the bone e.g. ribs, sternum, frontal bone of skull

Question 4

Irregular bones

Answer 4

Complex shapes with flat, notched or ridged surfaces. External surface= compact bone, inside= spongy bone, e.g. vertebrae, internal bones of skull

Question 5

Sesamoid bones

Answer 5

Usually small, round bones that develop inside of tendons. External surface= compact bone, inside= longs bone. Sesamoid: resembling a sesame seed in size or shape (L.) , e.g. patella