CHAPTER 10.2 (F4): HEART & BLOOD VESSELS

Heart is an organ that pumps blood throughout the body. What is the main tissue of the heart?

• Smooth muscle
• Skeletal muscle
• Epithelial tissue
• Cardiac muscle

Which blood vessels transport oxygenated blood to the heart cardiac muscles?

• Coronary arteries
• Aorta
• Pulmonary vein

• Pulmonary arteries

Label all the structures of the heart.

a

b

c

d

e

f

g

h

i

j

Bicuspid valve

Semilunar valve

Tricuspid valve

Pulmonary vein

Right atrium

Vena cava

Pulmonary artery

Left ventricle

Right ventricle

Left atrium

How many chambers does the human heart have?

• Two

• Three

• Four

• Five

What is the main function of the aorta in the circulatory system?

• Transports deoxygenated blood to the lungs

• Transports oxygenated blood to the whole body

• Transports deoxygenated blood back to the heart

• Transports oxygenated blood from the lungs to the heart

Which valve ensures that blood does not flow back into the right atrium?

• Bicuspid valve

• Semilunar valve

• Tricuspid valve

• Pulmonary valve

What is the role of the septum in the heart?

• Separates oxygenated and deoxygenated blood

• Pumps blood to the lungs

• Transports blood to the body

• Connects the atria and ventricles

Where are the semilunar valves located?

• Between the left atrium and left ventricle

• At the base of the pulmonary artery and aorta

• Between the right atrium and right ventricle

• At the entrance of the vena cava

What is the main vein that carries deoxygenated blood back to the heart?

• Aorta

• Capillary

• Vena cava

• Arteriole

What would happen if the bicuspid valve does not close completely when the ventricle relaxes?

• Blood would flow back into the left atrium

• Blood would flow back into the right atrium

• Blood would flow back into the left ventricle

• Blood would flow back into the right ventricle