13 terms

Respiratory System

STUDY
PLAY
nasal cavity
Large air filled space above and behind the nose in the middle of the face.
larynx
Commonly called the voice box, is an organ in the top of the neck of tetrapods involved in breathing, producing sound, and protecting the trachea against food aspiration.
trachea
Colloquially called the windpipe, is a cartilaginous tube that connects the pharynx and larynx to the lungs, allowing the passage of air.
bronchi
A passage of airway in the respiratory tract that conducts air into the lungs.
bronchioles
Passageways by which air passes through the nose or mouth to the alveoli of the lungs.
diaphragm
A muscle that extends across the bottom of the thoracic cavity. It's located under the lungs.
blood capillaries
The smallest of the blood vessels.
alveoli
Hollow cavity found in the lung parenchyma, and is the basic unit of ventilation.
1
Air enters the body through the nostrils
nostrils
The two openings of the nose.
2
The air travels down through the larynx, trachea, bronchi and the bronchioles and finally reaches the lungs.
3
Gas exchange takes place in the alveoli
lungs
Primary organs of the respiratory system in humans and many other animals.