Blood and Immune System

What does blood consist of?

• plasma, red blood cells, white blood cells, platelets
• hormones, oxygen, nutrients, water
• red blood cells
• carbon dioxide and minerals

The function of platelets is...

• Bloodclotting

• Transporting oxygen

• Fighting infection

Arteries carry oxygen rich blood away from the heart.

• True

• False

______________ are the smallest blood vessels.

• Arteries
• Veins
• Capillaries

What carries oxygen around the body?

• Plasma

• Red Blood Cells

• Platelets

• White Blood Cells

These carry blood to the heart:

• arteries
• veins
• capillaries
• arterioles

These have muscular walls:

• capillaries
• veins
• venules
• arteries

These have valves that prevent backflow of blood

• arteries
• veins
• arterioles
• capillaries

Gas, nutrient, and waste exchange occur between the __________ and the tissues of the body. 

• veins
• arteries
• capillaries
• legs

Oxygen and carbon dioxide are transported between the blood and alveoli by way of

• exocytosis and endocytosis by endothelial cells

• diffusion from areas of higher concentration to lower concentration

• pinocytosis using fluid-filled vesicles

• active transport (using ATP) by protein carriers of endothelial cells

Tags

NGSS.MS-LS1-3