Review For Heart/Lungs and Cell Respiration

Blood vessels that carry blood away from the heart.

• Veins

• Capillaries

• Arteries

Blood vessels that carry blood towards the heart.

• Veins

• Arteries

• Capillaries

The smallest blood vessels that ensure oxygen and nutrients are delivered to the body's cells.

• Capillaries

• Arteries

• Veins

The circulatory system works with the ___________ system to provide our body with oxygen.

• respiratory
• digestive
• muscular
• skeletal

What is the role of the alveoli in the respiratory system?

• to remove air
• allow air to travel to the alvelous
• gaseous (oxygen and carbon dioxide) exchange and diffusion

The air sacs that are covered with capillaries where gas exchange (oxygen and carbon dioxide) takes place

• bronchi
• lungs
• oxygen
• alveoli

Name the organ label # 6. 

• alveoli 
• bronchi 
• trachea 
• lungs 

Which structure relaxes and contracts as you breathe in and out?

• B

• F

• D

• A

Atria of the heart ____.

• receive blood

• pump blood

• are involved in heart murmurs

• keep blood from flowing backward

Ventricles of heart ___.

• receive blood

• pump blood

• are involved in heart murmurs

• prevent the backward flow of blood