Unit 7, Lecture 1

Label #6.

• pulmonary artery

• pulmonary vein

• aorta

• superior vena cava

What is the function of #5?

• carry deoxygenated blood to the lungs

• carry oxygenated blood to all parts of the body

• carry deoxygenated blood from all parts of the body to the heart

• carry oxygenated blood from the lungs

Which chamber of the heart has the thickest walls?

• right atrium

• left atrium

• right ventricle

• left ventricle

How many valves are found in the heart?

• 1

• 2

• 3

• 4

Which statement BEST describes the purpose of the circulatory system?

• moves and supplies oxygenated and nutrient-rich blood to the body

• moves and supplies deoxygenated and nutrient-rich blood to the body

• moves and supplies deoxygenated and nutrient-poor blood to the body

• moves and supplies oxygenated and nutrient-poor blood to the body

The valve between the right atrium and right ventricle is known as the __________ valve.

• mitral/bicuspid

• tricuspid

• pulmonary semilunar

• aortic semilunar

Which part of the heart pumps the oxygen-rich blood to all parts of the body?

• right ventricle

• left ventricle

• right atrium

• left atrium

This is a flap of tissue that prevents blood from flowing backwards.

• septum

• auricle

• aorta

• valve

Which structure of the heart receives blood from the body that is low in oxygen and high in carbon dioxide?

• right atrium

• left atrium

• right ventricle

• left ventricle

Which structure of the heart prevents the mixing of oxygen-rich blood and oxygen-poor blood?

• septum

• ventricles

• valves

• atria