Respiratory System

Alveoli

the smallest air passageways coming off of the bronchi

the muscular system uses oxygen which is brought into the body through the respiratory system; the diaphragm (a muscle) helps to bring air into and out of the l

a sheet of internal skeletal muscle that pulls and pushes against the lungs as we inhale and exhale

The main function of the respiratory system is the exchange of gasses - oxygen enters the body and carbon dioxide is removed.

Nose or nasal cavity

the air sacks at the end of the bronchioles where the gas exchange takes place

Both systems share the pharynx and the mouth

the passage that leads from the cavities of the nose and mouth to the larynx

the blood from the circulatory system has to pass through the lungs where carbon dioxide is released from the blood and oxygen is picked up into the blood

Pharynx

a hollow tube (wind pipe) that connects the larynx to the right and left bronchus

the 2 major air passages leading from the trachea to the lungs

1. A muscle that separates the abdominal cavity from the thoracic cavity & 2. Pushes and pulls against the lungs as we breathe

the lungs

Trachea

Bronchus

the organ that carries out the exchange of oxygen and carbon dioxide

hollow muscular organ which holds the vocal cords (voice box) which produce sound