Circulatory and Respiratory Systems Review 2025

Front

What are capillaries?

Back

Thin-walled vessels that allow for the exchange of O2, CO2, nutrients, and wastes between blood cells or air sacs in the lungs.

Front

What type of cells carry oxygen in the blood?

Back

Red blood cells.

Front

What is the liquid part of blood called?

Back

Plasma.

Front

Do all arteries carry blood away from the heart?

Back

True.

Front

What plasma protein is important for blood clotting?

Back

Fibrinogen.

Front

What is the primary function of red blood cells?

Back

To transport oxygen from the lungs to the body's tissues.

Front

What is the role of white blood cells?

Back

To fight infections and protect the body against foreign invaders.

Front

What is the function of platelets in the blood?

Back

To help with blood clotting.

Front

What is hemoglobin?

Back

A protein in red blood cells that binds to oxygen and carries it throughout the body.

Front

What is the main function of the circulatory system?

Back

To transport blood, nutrients, gases, and wastes throughout the body.