Unit 13 - The Respiratory System
Terms in this set (...)
exchange of gases between blood and tissue fluid and between tissue fluid and cells.
a muscle that separates the thoracic cavity from the lower abdominopelvic cavity.
opening between the vocal cords in the larynx.
act of expelling air from the lungs; exhalation.
one of the microscopic air sacs of the lungs.
two-layered serous membrane that lines the thoracic cavity and covers the external surface of the lung.
oxygen-bound form of hemoglobin.
breathing that is deeper and more vigorous, but with unchanged respiratory rate, as during exercise.
inflammation of the pleurae, making breathing painful.
condition in which inadequate oxygen is available to tissues.
elastic cartilage at the back of the throat; covers the opening of the larynx (glottis) during swallowing.
secretion produced by certain cells of the alveoli that reduces the surface tension of water molecules, thus preventing the collapse of the alveoli after each expiration.
difficult or labored breathing; air hunger.
Serous membrane that covers each lung.
outermost layer of lung, Line the walls of the thoracic cavity
three projections inside nasal cavity which increase air turbulence
located in the sphenoid, ethmoid, maxillary, and frontal bones they surround the nasal cavity and make the skull lighter; they also serve as resonance chambers for speech
a mass of lymphoid tissue, which covers the base of the tongue posterior to the oral cavity proper
located on the left and right sides of the throat in the area that is visible through the mouth
exchange of gases between the lungs and the blood
expiratory reserve volume
A, B, and C
A, B, C, and D
total lung volume
a main bronchus
the left lung
tiny sacs of lung tissue specialized for the movement of gases between air and blood
chronic condition that affects the small air passage of the lungs; when exposed to certain triggers, the airways narrow
Fleshy lobes in the nasal cavity which increase its surface area and create turbulence
dead space volume
air in respiratory passages that does not contribute to gas exchange
abnormally prolonged and deep breathing
pressure in the plueral cavity, always less than pressure in the lungs; negative pressure
stimulate the diaphragm and causes it to contract
amount of air remaining in the lungs after a forced exhalation
tidal volume (TV)
quantity of air moved into and out of the lungs during a normal breath (500ml)
vital capacity (VC)
total amount of exchangeable air
mucosal folds that function in voice production (speech); also called the true vocal cords.
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