Circulatory System Video Handout

Blood is always red.

• true

• false

What is the function of human blood?

• maintaining a certain pH and temperature

• transporting hormones, nutrients, and gases

• all of the above

What is the liquid portion of blood called?

• cytoplasm

• plasma

• platelets

What do red blood cells mainly transport?

• gases

• nutrients

• hormones

What is the function of white blood cells?

• transporting nutrients

• transporting hormones

• fighting infections

Which component of blood is involved in helping blood clot?

• platelets

• plasma

• white blood cells

What is the name of the iron-containing protein that transports oxygen and is the reason why blood is red?

• red blood cells

• hemoglobin

• bone marrow

Which structure carries blood away from the heart?

• arteries

• veins

• capillaries

Which structure carries blood to the heart?

• arteries

• veins

• capillaries

Which structure delivers oxygen to organs and tissues and carries carbon dioxide to the lungs?

• arteries

• veins

• capillaries