Types of Bone and Bone Classification

Question 1

COMPACT BONE

Answer 1

Forms periphery of all bones and a portion of the shaft of long bones. 
Contains many cylindrical shaped units that run length wise. (Haversian systems)

Question 2

SPONGY BONE

Answer 2

cancellous bone
Found in centre of long bones.
Contains thin strips, called trabeculae, giving it a spongy appearance. (arranged to provide maximum strength like braces of a building.)

Question 3

LONG BONES

Answer 3

Longer than they are wide. Long, slender.
Femur, tibia, fibula, humerus, ulna, radius, metatarsals, metacarpals.

Question 4

SHORT BONES

Answer 4

Generally small, cube shaped, and contain multiple articulating surfaces. Boxy.
Carpals (wrist), tarsals (ankle).

Question 5

FLAT BONES

Answer 5

Possess a broad, flat surface.
Thin, parallel surfaces.
Roof of skull, sternum, ribs, scapula.

Question 6

IRREGULAR BONES

Answer 6

Oddly shaped and do not fit well in other shape or size categories.
Complex shapes with short, flat, notched, or rigid surfaces.
Spinal vertebrae, pelvic bones, some skull bones.

Question 7

SESAMOID BONES

Answer 7

Small bones embedded in tendons and ligaments.
Small, flat, shaped like sesame seeds.
Found inside tendons, near knee joints, hands and feet, throat.