Ch 10- Respiratory System
alveoli
Air sacs made of one layer of squamous epithelial tissue that contain a rich network of blood capillaries, allowing oxygen and carbon dioxide to be exchanged between the blood and the lungs.
epiglottis
A special leaflike piece of cartilage that closes the opening into the larynx during swallowing.
larynx
The voice box, which lies between the pharynx and trachea and contains the vocal cords.
pharynx
The throat, which lies directly behind the nasal cavities and receives both air and food/air from the mouth.
trachea
The windpipe, a tube extending from the larynx to the center of the chest that carries air between the pharynx and the bronchi.
bronchi
Two tubes (right and left) that the trachea divides into near the center of the chest, carrying air from the trachea to the lung.
expiration
The process of breathing out air
lungs
Organs where the divisions of the bronchi and the alveoli are found.
pleura
A double-layered membrane, or sac, that encloses each lung.
ventilation
The process of breathing, involving the two phases of inspiration and expiration.
bronchioles
The smallest branches that the bronchi divide into in the lungs.
external respiration
The exchange of oxygen and carbon dioxide between the lungs and bloodstream.
nasal cavities
The two hollow spaces of the nose, lined with a mucous membrane, where air is warmed, filtered, and moistened.
respiration
The process of inspiration and expiration.
cellular respiration
the process where cells use oxygen and nutrients to produce energy, water, and carbon dioxide
inspiration
The process of breathing in air
nasal septum
A wall of cartilage that divides the nose into two hollow spaces.
espiratory system
The system responsible for taking in oxygen and removing carbon dioxide.
cilia
Tiny, hairlike structures that filter inhaled air to trap dust and other particles.
internal respiration
The exchange of carbon dioxide and oxygen between the tissue cells and the bloodstream.
nose
Consists of a bony framework and cartilage with two openings (nostrils or nares) through which air enters.
sinuses
Cavities in the skull that surround the nasal area, lined with a mucous membrane that warms and moistens air.