Blood Vessels

Front

What is the function of veins in the circulatory system?

Back

Veins carry blood towards the heart.

Front

What is the function of arteries in the circulatory system?

Back

Arteries carry blood away from the heart.

Front

What type of blood vessel has walls that are one cell layer thick?

Back

Capillaries have walls that are one cell layer thick, composed of simple squamous epithelium.

Front

What is the central tunnel of a blood vessel called?

Back

The central tunnel of a blood vessel is called the lumen.

Front

What is the largest vein in the human body?

Back

The largest vein in the human body is the inferior vena cava.

Front

What is the role of the tunica media in blood vessels?

Back

The tunica media is responsible for the contraction and relaxation of blood vessels, regulating blood pressure and flow.

Front

What type of blood vessel carries oxygenated blood from the heart to the body?

Back

Arteries carry oxygenated blood from the heart to the body, with the exception of the pulmonary arteries.

Front

What is the difference between systemic and pulmonary circulation?

Back

Systemic circulation carries oxygenated blood from the heart to the body, while pulmonary circulation carries deoxygenated blood from the heart to the lungs.

Front

What is the role of valves in veins?

Back

Valves in veins prevent the backflow of blood, ensuring it flows towards the heart.

Front

What is the smallest type of blood vessel?

Back

Capillaries are the smallest type of blood vessel.