the main organ of the respiratory system

• lungs

• trachea

• ribs

• bronchi

The _____ is a tube like passageway at the top of the throat that receives food, air, and liquids.

Blood enters the two upper chambers of the heart, called?

(select all that apply)

• atria

• arteries

• atrium

• veins

blood leaves the heart through the two lower chambers called_____

• capillaries

• ventricles

• artery

• diaphragm

A _______ is a large muscle below your lungs

What are the two narrow tubes that lead to your lungs?

• bronchi

• ribs

• pharynx

• lungs

transports blood that contain CO2 back to your heart

• veins

• heart

• spinal cord

• alveoli

tiny vessels that enable oxygen, CO2, and nutrients, to move between circulatory system

• capillaries

• veins

• bronchi

• spine

parts of respiratory system.

• pharynx

• trachea

• lungs

• all of the above

what is an alveoli/alveolus

• part of

  your heart

• a pouch in your lungs in which the bronchioles end up

• the veins in your lungs

• none of the above

Tags

NGSS.MS-LS1-2

NGSS.MS-LS1-3