Unit 1 PE: The Cardiovascular System

True or false: veins carry blood from organs towards your heart.

• True

• False

Which side of the heart carries oxygenated blood?

• Left

• Right

When the heart contracts, it squeezes the blood out of the ventricle and into the arteries. This is called the ______ phase of the hearts contraction.

• Systole

• Diastole

• Cisily

• Circulatory

The amount of blood ejected by the left ventricle in one contraction/heart beat is called what:

• Heart rate

• Stroke Volume

• Cardiac Output

• Systemic Circulation

A measure of the volume of blood ejected from the left ventricle of the heart per minute is called:

• Heart Rate

• Stroke Volume

• Cardiac Output

• Systemic Circulation

During an increasing intensity exercise, which component will plateau at 40-50% of max exercise capacity.

• Heart Rate

• Stroke Volume

• Cardiac Output

• Systemic Circulation

Blood transports oxygen from the lungs and heart to the working _______, and then removes metabolic by-products such as carbon dioxide from muscle sites.

_______ results in less blood moving through capillaries, and more blood being redirected to areas

• Vasoconstriction

• Vasodilation

Blood consists of plasma and blood cells. What is the percentage of red blood cells contained in blood?

• 9%

• 95%

• 99%

• 90%

Which blood component is responsible for counteracting dehydration and carries nutrients?

• Red blood cells

• White blood cells

• Platelets

• Plasma