Cardiovascular System: Heart and Blood Vessel Anatomy

1. What is the function of a blood vessel?

To digest food

To produce hormones

To regulate body temperature

Blood vessels play a crucial role in the circulatory system by forming a closed fluid delivery system to carry blood from the heart to all body tissues and back to the heart. They are not responsible for regulating body temperature, producing hormones, or digesting food.

Explanation

Blood vessels play a crucial role in the circulatory system by forming a closed fluid delivery system to carry blood from the heart to all body tissues and back to the heart. They are not responsible for regulating body temperature, producing hormones, or digesting food.

2. What are the three types of blood vessels?

Brain, Spinal cord, Nerves

Kidneys, Lungs, Liver

Red blood cells, White blood cells, Platelets

Blood vessels are divided into arteries, which carry blood away from the heart to the capillaries; capillaries, where the exchange of oxygen and nutrients with tissues occurs; and veins, which carry blood back to the heart.

Explanation

Blood vessels are divided into arteries, which carry blood away from the heart to the capillaries; capillaries, where the exchange of oxygen and nutrients with tissues occurs; and veins, which carry blood back to the heart.

3. What are the three layers that compose the walls of arteries and veins?

Tunica intima, tunica muscle, tunica externa

Tunica externa, tunica intima, tunica media

Endothelium, connective tissue, smooth muscle

Arteries and veins have walls composed of three layers - tunica intima (innermost layer), tunica media (middle layer), and tunica externa (outermost layer), each serving different functions in maintaining the structure and function of blood vessels.

Explanation

Arteries and veins have walls composed of three layers - tunica intima (innermost layer), tunica media (middle layer), and tunica externa (outermost layer), each serving different functions in maintaining the structure and function of blood vessels.

4. Describe Arteries.

Arteries always transport blood away from the heart, contain a thick layer of smooth muscle to withstand pressure, and arterioles are the smallest arteries that carry blood towards the capillaries. The incorrect answers provide misinformation about the direction of blood flow, muscle composition, and the relationship between arteries and arterioles.

Explanation

Arteries always transport blood away from the heart, contain a thick layer of smooth muscle to withstand pressure, and arterioles are the smallest arteries that carry blood towards the capillaries. The incorrect answers provide misinformation about the direction of blood flow, muscle composition, and the relationship between arteries and arterioles.