Respiratory Anatomy

The system of the body that brings oxygen into the body and releases carbon dioxide.

• respiratory​ ​system​
• skeletal system
• muscular system
• circulatory system

The tube in the body through which air moves as it travels to and from the lungs; the windpipe.

• heart

• bone

• blood vessel

• trachea

Tiny air sacs in the lungs that are the site of gas exchange between the lungs and blood.

• alveoli​
• relax
• diaphragm​
• nose

A wide muscle that separates the thoracic cavity from the abdominal cavity and aids in the inflation of the lungs.

• diaphragm​

• heart

• nose

• trachea

The beginning point of the respiratory system where air is taken into the body.

• lung
• diaphragm​
• nose​
• trachea​

What is the main function of the respiratory system?

• to provide oxygen and remove carbon dioxide from the body

• o break down food and absorb nutrients

• to remove oxygen from the body and deliver carbon dioxide

What are the main organs of the respiratory system that allow us to breathe and for gas exchange to happen?

• diaphragm

• lungs

• trachea

What is function of the dome-shaped diaphragm muscle?

• This is where gas exchange happens.

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

• It contracts and relaxes to open the lungs during breathing.

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

• air/oxygen

• oxygen/carbon dioxide

• carbon dioxide/oxygen

• waste/air

These are the two two main branches from the trachea (one to each lung)

• bronchi

• alveoli

• capillaries

• bronchioles