Respiratory System

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

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

Organs of the respiratory system that bring oxygen-rich air into​ ​the body and send oxygen-poor air out of the body.

• heart
• muscles
• lungs
• bones

The process of taking in oxygen and releasing carbon dioxide from the body.

• transpiration 
• respiration 
• digestion
• relaxation

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

• heart
• bone
• blood vessel
• trachea 

Having to do with the voice or speaking.

• heart
• lungs
• vocal
• singing

A shortening of the muscle when made tense.

• respiration​
• contract​
• alveoli​
• lungs​

A lengthening of the muscle when made less tense, to release.

• relax​
• lung
• respiratory system
• respiration

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 chest 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​