Human Body Gold Assessment

The main organ of the circulatory system that pumps blood throughout the body is the

(a)  

Blood vessels that carry blood away from the heart are called ​ ​ (a)  

• arteries
• veins
• capillaries

Tiny air sacs in the lungs where gas exchange takes place are called ​ (a)  

• alveoli
• bronchi
• trachea

The muscle that helps the lungs expand and contract during breathing is called

• ribs

• diaphragm

• lungs

• Oxygen

Which part of the respiratory system brings air into the lungs?

• Esophagus

• Trachea

• Heart

• Stomach

What happens to carbon dioxide in the body?

• It is stored in the heart?

• It is used for energy

• It is breathed out

• It turns into oxygen

What is the main function of the circulatory system?

• To break down food

• To transport oxygen and nutrients

• To produce hormones

• To control movement

What type of blood vessel carries blood back to the heart?

• Artery

• Capillary

• Bronchiole

• Vein

Where does oxygen enter the blood in the respiratory system?

• Alveoli

• Nose

• Trachea

• Diaphragm

​ (a)   is the gas needed by the body's cells for energy.

• Oxygen
• Carbon Dioxide
• Nitrogen

Tags

NGSS.MS-LS2-3