Cardiovascular System Review

Front

What is the function of neutrophils?

Back

Neutrophils are a type of white blood cell that engulf and destroy foreign bacteria, playing a crucial role in the immune response.

Front

What are the three cell layers found in arteries and veins?

Back

The three cell layers are Tunica intima, Tunica media, and Tunica externa.

Front

What is the function of valves within the heart?

Back

Valves in the heart prevent the backflow of blood, ensuring unidirectional blood flow through the heart chambers.

Front

What are the four chambers of the heart?

Back

The heart has two atria and two ventricles.

Front

Which hormone stimulates the production of red blood cells?

Back

Erythropoietin is the hormone that stimulates the production of red blood cells in the bone marrow.

Front

What is the role of the cardiovascular system?

Back

The cardiovascular system is responsible for transporting nutrients, oxygen, hormones, and waste products throughout the body.

Front

What is the difference between oxygenated and deoxygenated blood?

Back

Oxygenated blood is rich in oxygen and is carried from the lungs to the body, while deoxygenated blood is low in oxygen and is returned from the body to the lungs.

Front

What is the significance of the sinoatrial (SA) node?

Back

The sinoatrial (SA) node is known as the heart's natural pacemaker, initiating the electrical impulses that regulate heartbeats.

Front

What is blood pressure?

Back

Blood pressure is the force exerted by circulating blood on the walls of blood vessels, typically measured in millimeters of mercury (mmHg).

Front

What are capillaries and their function?

Back

Capillaries are tiny blood vessels that connect arteries and veins, facilitating the exchange of oxygen, carbon dioxide, nutrients, and waste between blood and tissues.