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Human Body Week 5

Respiratory System The system of the body that brings oxygen into the body and releases carbon dioxide.
Lungs Organs of the respiratory system that bring oxygen-rich air into the body and send oxygen-poor air out of the body.
Respiration The process of taking in oxygen and releasing carbon dioxide from the body.
Trachea The tube in the body through which air moves as it travels to and from the lungs; the windpipe.
Vocal Having to do with the voice or speaking.
Contract A shortening of the muscle when made tense.
Relax A lengthening of the muscle when made less tense, to release.
Alveoli Tiny air sacs in the lungs that are the site of gas exchange between the lungs and blood
Diaphragm A wide muscle that separates the chest cavity from the abdominal cavity and aids in the inflation of the lungs
Nose The beginning point of the respiratory system where air is taken into the body
Created by: 12258074