Circulatory System Quiz - T Level Health

What happens to the blood in the pulmonary arteries?

• It is pumped out of the heart into the aorta

• It is returned to the left side of the heart

• It is carried to the lungs where oxygen is picked up and carbon dioxide is unloaded

• It is carried to the body tissues

Which valve is also known as the mitral valve?

• Tricuspid valve

• Pulmonic valve

• Aortic valve

• Bicuspid valve

What is the function of the heart valves?

• To allow blood to flow in only one direction through the heart chambers

• To pump blood into the lungs

• To oxygenate the blood

• To regulate heart rate

When are the coronary arteries compressed?

• When the ventricles contract

• When the atria contract

• When the heart is relaxed

• When the heart is in diastole

Where do the cardiac veins empty?

• Into the coronary sinus

• Into the left atrium

• Into the right ventricle

• Into the superior vena cava

What type of tissue is found in both arteries and veins?

• Nervous tissue

• Connective tissue

• Epithelial tissue

• Muscle tissue

What is the innermost layer of blood vessels called?

• Connective tissue

• Smooth muscle

• Endothelium

• Valve

What is the function of the tunica media?

• To support and protect the vessels

• To decrease friction as blood flows through the vessel lumen

• To constrict or dilate, making the blood pressure increase or decrease

• To transport nutrients

Which layer of the blood vessel wall is the outermost tunic?

• Tunica intima

• Tunica externa

• Tunica media

• Tunica adventitia

What is the main component of the tunica intima?

• Smooth muscle

• Elastic fibers

• Endothelium

• Fibrous connective tissue