Exam 2 - Chapter 7: Respiratory System (by term) Flashcards
(155 cards)
cilia
microscopic hairlike structures in the respiratory system
diffuse
to move or spread out at random, rather than by chemical reaction or application of external force
mucous membrane
moist tissue layer lining hollow organs and cavities of the body that open to the environment, sometimes called mucosa
septum
a wall dividing two cavities
serous membrane
thin layer of tissue that covers internal body cavities and secretes a fluid that keeps the membrane moist; sometimes called serosa
olfactory neurons
receptors for the sense of smell
pharynx
the throat
nasopharynx
one of the three divisions of the pharynx; sits in the posterior of the nose
oropharynx
one of the three divisions of the pharynx, sits in the posterior of the mouth
laryngopharynx
one of the three divisions of the pharynx, sits just above the larynx
adenoids
the pharyngeal tonsils
palantine tonsils
what we commonly know as tonsils; sits in the oropharynx
larynx
sometimes called the voice box, contains the structures that make vocal sound possible.
epiglottis
leaf-shaped cartilage and flesh portion of the throat that covers the passage to the lungs while swallowing
bronchi
the two immediate tubes descending from the trachea and into the lungs
bronchioles
bronchi divide into smaller and smaller tubes, eventually becoming these structures
alveoli
tiny air sacs that sit at the end of the bronchioles, expanding and contracting with the flow of air
pulmonary capillaries
tiny blood vessels that lie next to the thin tissue membranes of the alveoli
mediastinum
the space between the right and left lungs, containing the heart, aorta, esophagus, and bronchi
pleura
the serous membrane that covers the lobes of the lungs and folds over to line the walls of the thoracic cavity
visceral pleura
the serous membrane lying closest to the lungs and organs
parietal pleura
the serous membrane lining the thoracic cavity
inspiration
a fancy word for “breathing in”
pulmonary ventilation
a fancy word for breathing