Bone Classification Overview

Questions and Answers

What are the two basic kinds of osseous tissues found in the skeleton?

Spongy bone (correct)

Cartilage

Cancellous bone

Compact bone (correct)

What is compact bone?

Dense and made up of organizational units called osteons.

What is spongy bone composed of?

Small trabeculae (columns) of bones and lots of open space.

What are the four groups into which further classifications of bones can be divided?

Irregular Signup and view all the answers

What are long bones?

Longer than they are wide, generally consisting of a shaft with heads at either end, composed mostly of compact bone. Signup and view all the answers

Describe short bones.

Typically cube-shaped and contain more spongy bone than compact bone. Signup and view all the answers

What are flat bones?

Generally thin with two layers of compact bone sandwiching a thicker layer of spongy bone between them. Signup and view all the answers

What are irregular bones?

Bones that do not classify as flat, short, nor long. Signup and view all the answers

What are sesamoid bones?

Special types of short bones formed within the tendons. Signup and view all the answers

What are sutural bones?

Tiny bones between cranial bones. Signup and view all the answers

Study Notes

Osseous Tissues

Two primary types: compact bone and spongy (cancellous) bone.

Compact Bone

Dense structure consisting of osteons, which are the organizational units.

Spongy Bone

Made of small trabeculae (columns) and contains a significant amount of open space.

Bone Classifications

Four major groups: long bones, short bones, flat bones, and irregular bones.

Long Bones

Characterized by being longer than wide, featuring a shaft and end heads, primarily composed of compact bone.
Examples include the femur and phalanges.

Short Bones

Generally cube-shaped, contain more spongy bone than compact bone.
Examples include tarsals and carpals.

Flat Bones

Thin structure, with two layers of compact bone encasing a thicker layer of spongy bone.
Often curved, as seen in cranial bones.

Irregular Bones

Do not fit into other classifications, such as vertebrae.

Sesamoid Bones

Specialized short bones located within tendons.
Example includes patellas (kneecaps).

Sutural Bones

Small bones found between cranial bones.

Description

Explore the fundamental types of osseous tissues in the human skeleton with this quiz. Learn about compact bone, spongy bone, and their characteristics, including their structure and further classifications. Perfect for students studying anatomy and physiology.