TYPES OF BONES

Question 1

• Proportionally longer than they are wide.
• Each has a central marrow cavity and a proximal and distal epiphysis.
• Typical of the limb bones (femur, humerus).
• Include bones of the metacarpus/metatarsus and phalanges.

Answer 1

Long Bones

Question 2

• About as long as they are wide.
• Have an outer layer of compact bone with a core of cancellous bone and no medullary cavity.
• Examples of the short bones are carpals and tarsals.

Answer 2

Short Bones

Question 3

• Have two plates of compact bone with spongy bone in between.
  Forming a trabeculae crossing from one side of the bone to the other.
• These bones have no marrow cavity but have small, irregular marrow spaces.
• Examples of flat bones include pelvic bones, scapula and skull bones.

Answer 3

Flat Bones

Question 4

• Have similar structure to short bones but a less uniform in shape.
• They lie in the midline and are unpaired (e.g., vertebrae and some parts of the skull).

Answer 4

Irregular Bones