Respiratory System

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

Alveoli

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

the smallest air passageways coming off of the bronchi

Bronchus

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

both systems share the pharynx and the mouth

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

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

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

Pharynx

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

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

tiny hair-like structures that line your respiratory pathways & filter the air we breathe

Trachea

flap of elastic cartilage attached to the larynx that closes when food passes by

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

Nose or nasal cavity

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

the lungs