Review 4.3 - 4.4: Blood Vessels and Blood

Front

What determines whether a blood type is positive or negative?

Back

The presence of the D antigen.

Front

Which blood vessels are responsible for the exchange of nutrients and wastes with cells?

Back

Capillary beds.

Front

Which layer of blood vessels is responsible for allowing them to contract and relax?

Back

Tunica media.

Front

What type of tissue is blood?

Back

Connective tissue.

Front

What is the primary function of erythrocytes (RBCs)?

Back

Carrying oxygen to all cells.

Front

What are the main components of blood?

Back

Red blood cells, white blood cells, platelets, and plasma.

Front

What is the function of platelets in the blood?

Back

To aid in blood clotting.

Front

What is the role of white blood cells in the body?

Back

To defend against infection and disease.

Front

What is the significance of the tunica intima in blood vessels?

Back

It provides a smooth lining for blood flow and reduces friction.

Front

How does blood flow through the circulatory system?

Back

From the heart to arteries, then to capillaries, and back through veins to the heart.