Know Your Terms
Main Skeletal Parts
Joints and Movement
Bone Composition
Disorders of the Skeletal System
100

Unlike the exoskeleton present in bugs, humans have this system to support and protect the organs.

What is an endoskeleton?

100

The skeletal system can be divided into these two parts.

What are axial and appendicular?

100

These are the four main types of joints.

What are ball-and-socket, pivot, ellipsoidal, and hinge joints?

100

Bones act as the principal storage for these two minerals.

What are calcium and phosphorus?

100

This is the inflammation of a joint, most common in older adults.

What is arthritis?

200

This is how the body makes new bone cells.

What is ossification?

200

This segment of the skeletal system is made up of the 80 bones in your head, spine, ribs, and sternum.

What is the axial skeleton?

200

This type of joint allows for the widest range of movement: backward, forward, sideways, and in a circle.

What are ball-and-socket joints?

200

This spongy substance makes up the inside of bones.

What is marrow?

200

Bony growths that form in the joint where the big toe meets the foot.

What are bunions?

300

This fluid lubricates joints and allows for smoother movement.

What is synovial fluid?

300

This segment of the skeletal system is made up of the 126 bones in your shoulders, arms, hands, hips, legs, and feet.

What is the appendicular skeleton?

300

This fibrous, slightly elastic tissue binds the bone ends at the joint.

What are ligaments?

300

Bones are this many times stronger than concrete.

What is four times?

300

This is the lateral curvature of the spine, often diagnosed in adolescence.

What is scoliosis?

400

This word, defined as the study of bones, is made up of the Greek words oste + logia.

What is osteology?

400

These flat bones protect vital organs like the lungs and heart and are found in the axial skeleton.

What are rib bones?

400

This structure is similar to bone but softer and acts as a pad to protect some joints from wearing down the bones.

What is cartilage?

400

Bones are the body's producer of this type of cell.

What are blood cells?

400

The painful condition that occurs when a bursa in a joint becomes inflamed, most commonly in the shoulder and knee joints.

What is bursitis?

500

These are the small sacks between a tendon and bone that secrete synovial fluid.

What are bursa?

500

This bone is the longest in your body and can be found in the appendicular skeleton.

What is the femur bone?

500

These fibrous cords join muscle to bone or other muscle.

What are tendons?

500

Bones make up only this percent of your total body weight.

What is 14 percent?

500

This syndrome made up 30-40 percent of worker's compensation claims in the early 1990s.

What is carpal tunnel syndrome?