Respiratory Circulatory System

Respiratory Circulatory System

Multiple Choice

The air sacs that are covered with capillaries where gas exchange takes place

• bronchi

• lungs

• oxygen

• alveoli

Multiple Choice

When you breathe, your lungs take in ___ and remove ___.

• air/oxygen

• oxygen/carbon dioxide

• carbon dioxide/waste

• waste/air

Multiple Choice

The part of the blood that carries oxygen is called ________.

• red blood cells

• white blood cells

• platelets

• plasma

Multiple Choice

The part of the blood that helps you stop bleeding when you cut yourself is called __________.

• red blood cells

• platelets

• plasma

• white blood cells

Multiple Choice

What do we call the smallest blood vessels in our bodies?

• atoms

• capillaries

• tissues

• cells

Multiple Choice

Veins carry blood with carbon dioxide back to the heart.

• False

• True

Multiple Choice

Arteries carry blood with oxygen away from the heart.

• True

• False

Multiple Choice

What is function of the dome-shaped diaphragm?

• This is where gas exchange happens.

• Air passes through the diaphragm on the way to the lungs.

• It attaches to the lungs to help in breathing.

• It is under the lungs and keeps them from falling down to your stomach.

Multiple Choice

The main function of the circulatory system is 

• To give the body structure and support
• Excrete waste
• transport blood, nutrients, and gases throughout the body
• to transport messages from the body to the brain

Multiple Choice

The circulatory system works with the __________ system to obtain energy from nutrients that we eat. 

• respiratory 
• digestive
• skeletal
• nervous