Cell Specialization & Body Systems

What is the main function of the respiratory system?

• to provide oxygen and remove carbon dioxide from the body
• to bring oxygen to the body
• to break down food and absorb nutrients
• to remove oxygen from the body and deliver carbon dioxide

What are the main organs of gas exchange in the respiratory system?

• diapragm
• lungs
• trachea
• bronchi

When you breathe, your lungs take in _________ and remove ___________.

• air/oxygen

• oxygen/carbon dioxide

• carbon dioxide/waste

• waste/air

Tags

NGSS.MS-LS1-3

NGSS.MS-LS2-3

After blood leaves the right atrium, it enters the ________.

• right atrium

• left atrium

• right ventricle

• left ventricle

After blood leaves the left atrium, it enters the ___.

• right atrium

• left atrium

• right ventricle

• left ventricle

The heart has ___ chambers.

• 1
• 2
• 3
• 4

This chamber of the heart RECEIVES blood returning from the body

• right atrium

• right ventricle

• left atrium

• left ventricle

Which chamber of the heart has the thickest wall in order to pump blood to the entire body?

• left atrium

• right ventricle

• right atrium

• left ventricle

A flap of tissue that prevents blood from flowing backward.

• aorta

• atrium

• septum

• valve

What does the circulatory system do?

• circulates the blood throughout the body

• circulates water throughout the body

• excretes waste

• controls all parts of the body