Circulatory, Excretory and Nervous System

The circulatory system consists of the following EXCEPT:

• Heart

• Blood

• Nerves

• Blood Vessels

It is a thin but strong sac that encloses the heart.

• Pericardium

• Myocardium

• Septum

• Atria

This are the thick-walled and elastic blood vessels that carry blood away from the heart.

• Arteries

• Veins

• Capillaries

• Valves

This are very fine blood vessels that form a network in organs and tissues throughout the body.

• Arteries

• Veins

• Capillaries

• Valves

This are shaped like saucers with sides curved inside for increasing its oxygen-absorbing surface.

• Plasma

• Red Blood Cells

• White Blood Cells

• Blood Platelets

Its important role is the process of blood clotting that prevents blood loss.

• Plasma

• Red Blood Cells

• White Blood Cells

• Blood Platelets

It is a bigger, wider circulation that involves the whole body system, from the heart to all body parts and back.

• Oxygenated Circulation

• Deoxygenated Circulation

• Systemic Circulation

• Pulmonary Circulation

It is a disorder of the blood that results from the deficiency of red blood cells.

• Anemia

• Leukemia

• Hypertension

• Arteriosclerosis

Which of the following is not a cause of hypertension?

• Smoking

• Emotional Stress

• High Salt Diet

• Strep throat

What causes the artery to narrow its passage?

• Carbon dioxide

• Salt

• Oil

• Bad Cholesterol