Skeletal System Test Review

Front

What is the hardest, most dense part of the bone tissue?

Back

Compact bone is the hardest, most dense part of the bone tissue.

Front

How many bones are in the adult skeletal system?

Back

The adult skeletal system is composed of 206 bones.

Front

What type of fracture occurs when a bone is twisted and breaks?

Back

A spiral fracture occurs when a bone is twisted and breaks.

Front

What is a closed or simple fracture?

Back

A closed or simple fracture is a broken bone with no open wound in the skin.

Front

What type of bone is solid throughout except for the central canals and lacunae?

Back

Compact bone is solid throughout except for the central canals and lacunae.

Front

What is the periosteum?

Back

The periosteum is a dense layer of vascular connective tissue enveloping the bones except at the surfaces of the joints.

Front

What is spongy bone?

Back

Spongy bone, also known as cancellous bone, is a type of bone that has a porous structure and is found at the ends of long bones and in the interiors of others.

Front

What is an osteoblast?

Back

An osteoblast is a cell that produces the bone matrix and is involved in the formation of new bone.

Front

What is a greenstick fracture?

Back

A greenstick fracture is an incomplete fracture where the bone bends and cracks on one side without breaking all the way through.

Front

What is a compound fracture?

Back

A compound fracture is a broken bone that pierces through the skin, creating an open wound.