Quiz on Cardiovascular and Respiratory Systems

What is the primary function of the heart?

• To store oxygen

• To produce hormones

• To pump blood

• To filter blood

How many chambers does the heart have?

• 5

• 4

• 3

• 2

Which layer of the pericardium is the outermost?

• Serous pericardium

• Endocardium

• Fibrous pericardium

• Visceral pericardium

What type of blood do the pulmonary arteries carry?

• Deoxygenated blood

• Nutrient-rich blood

• Carbon dioxide-rich blood

• Oxygenated blood

Explain the role of the diaphragm in respiration.

• It produces sound

• It filters air

• It pumps blood

• It aids in breathing

Which structure connects the nasopharynx to the middle ear?

• Eustachian tube

• Trachea

• Bronchi

• Larynx

What is the function of the paranasal sinuses?

• To regulate air temperature and humidity

• To connect to the lungs

• To produce mucus

• To filter blood

Why are foreign particles more likely to lodge in the right main bronchus?

• It is narrower

• It has more cilia

• It is longer

• It is shorter and wider

What is the primary role of capillaries in the circulatory system?

• To carry blood away from the heart

• To connect arteries and veins

• To store blood

• To produce red blood cells

How does the blood from the digestive organs reach the liver?

• Through the pulmonary veins

• Through the inferior vena cava

• Through the aorta

• Through the portal vein