The respiratory mucosa is
Pseudostratified cilated columnar epithelium
The upper respiratory system consists of all the following except
larynx
Functions of the nose are all of the following except
none of the above
(functions include: warms the air, humidfies the air, filters the air)
Bronchial tree consists of
-primary bronchi
-secondary bronchi
-bronchioles
The bronchioles
control of airflow resistance and or distribution in the lungs.
Boyle's law
for a gas in a closed container and at a constant temperature, pressure is inversely proportional to volume
Cellular respiration
is the intracellular reaction of O2 with organic molecules to produce CO2, water, and ATP
External respiration is subdivided into the following integrated processes except:
Exchange of gases between blood and the lungs
Dalton's Law
each of the gases contributes to the total pressure in proportion to its relative abundance
Gas exchange at the respiratory membrane is efficient for the following reasons except
the total surface area is small
Local vasodilators accelerate blood flow in response to
decreased temperature
Kinins
cause contraction of visceral smooth muscle, but they relax vascular smooth muscle via NO, lowering blood pressure
Inhibits platelet aggregation and promotes vasodilation
prostacyclin
The chordae tendonae and papillary muscles play important roles in the normal function of the AV valves.
true
The factors that affect tissue perfusion are all the following expcept
autoregulation
monitor the degree of stretch in the walls of carotid and aortic sinuses
baroreceptors
Theories of autoregulation are the following except
temperature theory
The P wave
accompanies the depolarization of the atria
Phases of the cardiac cycle
-atrial systole
-atrial diastole
-ventricular systole
-ventricular diastole
The atrioventricular (AV) valves prevent backflow of the blood from the ventricles to the atria when the ventricles are contracting.
true
Cardiac output is the amount of blood pumped by the left ventricle in one second
false
Isovolumetric contraction period
lasts approximately 270 msec
Ventricular conducting cells consist of the AV bundle, bundle branches, and
Purkinje fibers.
Connective tissue fibers of the heart function to do the following except
stabilizes the heart valves
There are two atrioventricular valves
bicuspid (mitral), tricuspid
End diastolic volume is
130
S2 is caused by the
closing of the semilunar valves