Skeletal System

Front

What are specialized bone cells that break down bone called?

Back

Osteoclasts

Front

Which skeleton includes the skull bones, ribs, and vertebral column bones?

Back

Axial Skeleton

Front

How many true ribs, false ribs, and floating ribs are there in the human body?

Back

7 true, 5 false, 2 floating

Front

What are the openings in an infant's skull called?

Back

Fontanels

Front

At what age are nearly all bones completely ossified?

Back

25 years

Front

What is the primary function of osteoblasts?

Back

To build new bone tissue.

Front

What is the difference between the axial and appendicular skeleton?

Back

The axial skeleton includes the skull, vertebral column, and rib cage; the appendicular skeleton includes the limbs and pelvic girdle.

Front

What is the role of osteocytes in bone tissue?

Back

To maintain bone tissue and communicate with other bone cells.

Front

What is the term for the process of bone formation?

Back

Ossification.

Front

What type of joint allows for the greatest range of motion?

Back

Ball-and-socket joint.