Skeletal System

A living bone's surface is covered with a tough, tight-fitting membrane called the _________________________.

• periosteum

• cartilage

• marrow

• compact bone

What is the function of marrow?

• To make protein

• To make red blood cells and store fat.

• reduce friction

• to hold bones together

Name the condition in which the bones become weak and break easily.

• Osteoarthritis

• Rheumatoid arthritis

• osteoporosis

• arthritis

How many bones does an ADULT skeleton have?

• 206

• 200

True or False: Skeletal bones provide shape, support, protection and movement to your body.

• True

• False

What two minerals are bones primarily made up of?

• Carbon and Nitrogen

• Calcium and Phosphorus

• Gold and Silver

Which type of joint allows you to bend and straighten your knee?

• Hinge

• Ball and Socket

• Gliding

• Pivot

A condition where your bones can become weak and break easily is called...

• Old age

• Osteoporosis

• Arthritis

• Scoliosis

Skeletal muscles and tendons work together to move your skeleton.

• True

• False

True or False: Bones are actually living organs.

• True

• False