Body's Transportation System
Blood Vessels
Blood
Lymph
Cardiovascular Health

100

Carries needed substances to cells and carries waste products away from cells
What is the cardiovascular system?

100

Their walls consist of 3 layers-the innermost is made of epithelial tissue which is smooth
What are the arteries?

100

About 45% of the volume of blood is made of cells. This is the rest
What is plasma?

100

A network of veinlike vessels that returns fluid to the bloodstream
What is the lymphatic system?

100

A condition in which an artery wall thickens
What is atherosclerosis?

200

A hollow muscular organ that pumps blood through the body
What is the heart?

200

You feel this because of the alternating and expansion and relaxation of the artery wall
What is a pulse?

200

Take up oxygen in lungs and deliver to other parts of body
What are red blood cells?

200

Made of water and dissolved material such as glucose
What is lymph?

200

Occurs when blood flow to part of the heart is blocked
What is a heart attack?

300

The two upper chambers that recive blood that comes into the heart
What are the atrium?

300

Where materials are exchanged between blood and the body's cells
What are the capillaries?

300

An iron containing protein that binds chemically to oxygen molecules
What is hemoglobin?

300

Because the system has no pump
Why does lymph move slowly?

300

A disorder where a person's blood pressure is consistently higher than normal
What is hypertension?

400

A group of cells that sends out signals that make the the heart muscle contract
What is the pacemaker?

400

These carry blood back to the heart
What are the veins?

400

The body's disease fighters
What are white blood cells?

400

Knobs of tissue that filter lymph
What are lymph nodes?

400

Two factors that can increase a person's risk of developing hypertension
What are being overweight and failing to get enough exercise?

500

They exert a force that moves blood out of your heart and into arteries
What are the ventricles?

500

This is caused by the force with which the ventricles contract
What is blood pressure?

500

Blood type, A, B, AB, O
What are the 4 blood types?

500

Another name for swollen lymph nodes
What are "swollen glands"?

500

This group of people are twice as likely to have a heart attack than nonsmokers
Who are smokers?