The Circulatory System

What is 4:30 p.m. in military time?

• 0430 hours

• 1630 hours

• 2330 hours

• 1230 hours

What are the three major types of blood vessels?

• Arteries, Veins, Capillaries

• Arterioles, Venules, Ducts

• Aorta, Vena Cava, Lymphatics

• Bronchi, Alveoli, Trachea

What is another name for the circulatory system?

• Respiratory system

• Cardiovascular system

• Digestive system

• Nervous system

What are the main components of the circulatory system?

• Heart, stomach, intestines

• Brain, spinal cord, nerves

• Heart, blood vessels, blood

• Lungs, trachea, bronchi

Which chamber has the thickest muscular wall?

• The right atrium

• The left atrium

• The right ventricle

• The left ventricle

What is the heart commonly referred to as?

• Body's filter

• Body's pump

• Body's valve

• Body's muscle

How much does the heart typically weigh?

• Less than 1 pound

• More than 2 pounds

• Exactly 1.5 pounds

• Less than 0.5 pounds

What is the function of the valves in the heart?

• To pump blood throughout the body

• To prevent the backflow of blood

• To oxygenate the blood

• To carry blood to the lungs

Which of the following is NOT a valve of the heart?

• Tricuspid

• Pulmonary

• Mitral

• Hepatic

What separates the left and right sides of the heart?

• The aortic valve

• The septum

• The mitral valve

• The pulmonary valve