Respiratory System Flashcards
Cells
The basic structural unit of an organism which living things are created
Alveoli
Tiny air sacs in the lungs where exchange of oxygen and carbon dioxide takes place.
Ventilation
the exchange of oxygen with carbon dioxide in the lungs.
Trachea
the windpipe, which connects the larynx to the lungs.
bronchi
The main passageways directly attached to the lungs
bronchioles
Small passages in the lungs that connect bronchi to alveoli
heart
Muscular organ that pumps blood throughout the body.
mediastinum
The area between the two lungs.
Pleura
A membrane around the lungs and inside the chest cavity.
capillaries
Small vessels that connect smaller arteries, called arterioles, to smaller veins, called venules, and carry out gas exchange.
diffusion
The passive movement of a substance from an area of a high concentration to an area of low concentration.
Passive Transport
Movement across a cell membrane that does not require energy input.
tidal volume
The amount of air breathed in a normal inhalation or exhalation
allergies
An immune response to a foreign agent that is not a pathogen.
