Complete Solutions
alveolar macrophages Correct Answers they are the most
abundant cell within the alveoli.They are the primary immune
defense system of the alveoli. Once a macrophage has
phagocytized a particle or pathogen, it migrates toward the
ciliary surface of the bronchiolar system. Once on the surface,
the cilia carry the macrophage and particles to the mouth to be
expectorated or swallowed.They act like a vacuum cleaner.
Alveoli Correct Answers are primary way that gasses are
exchanged. They are wedged between capillaries. Heavily
vascularized area bc must have a lot of blood flow to be able to
exchange all the gasses we need for our body. The primary
function of the cells within the alveoli is to allow efficient
exchange of gases between the air and blood.
anatomical organization of the respiratory system Correct
Answers allows the respiratory system to perform three main
functions: 1) air conduction, 2) air filtration, and 3) exchange of
gases - aka respiration
aspiration Correct Answers when food or liquid accidentally
enters the trachea. This may happen because bothfood and air
cross in this region.
basement membrane Correct Answers "floor" of the epithelial
tissue.
, Bronchi Correct Answers two short branches located at the
lower end of the trachea that carry air into the lungs. The
bronchi resemble the trachea in structure, but as the tubes divide
and subdivide, their walls become thinner, and rings of cartilage
are no longer present.
bronchial tree Correct Answers branched airways that lead
from the trachea to the microscopic air sacs called alveoli
Bronchioles Correct Answers progressively smaller tubular
branches of the airways
Cilia Correct Answers small hair like projections at the apex or
the top of the cells (apical side). These hairs move or "beat" in
an upward sweeping motion. Their action helps to keep the
respiratory tract free of debris.
columnar cells Correct Answers attach to basement membrane,
called columnar because they are taller than they are wide
Conducting portion of respiratory system Correct Answers
responsible for moving air in and out of lungs. air is filtered so
that it is free of debris, warmed, and humidified. By the time the
air reaches the lungs, it is at body temperature and saturated with
water.
Epiglottis Correct Answers located in the oropharynx behind
the oral cavity- this flap directs food and fluid away from the
trachea and into the esophagus. It is a cartilage flap that moves
like a trap door.