PHYSIOLOGY III PROFICIENCY EXAM
REVIEW WITH 100% CORRECT ANSWERS
where does the breakdown of red blood cells start? - CORRECT ANSWERS- in
the macrophage
does the right atrium have oxygenated or deoxygenated blood? - CORRECT
ANSWERS- deoxygenated
oxygen is carried by _____ cells. It binds to proteins called _____ that contain
iron. - CORRECT ANSWERS- erythrocytes; hemoglobin
which element is responsible for immune function, clotting, and gas transfer?
(in this particular order) - CORRECT ANSWERS- leukocytes; platelets;
erythrocytes
what are the major functions of blood? - CORRECT ANSWERS- - plays a role
in immune function
- temperature regulation
- pH regulation
- gas/nutrients/ waste transport
- regulates water loss
, what is the process of emigration/extravasation and what subtypes of WBCs
most commonly conduct it? - CORRECT ANSWERS- WBCs leaving vessels
and migrating to external infections
- neutrophils and monocytes
what classifies an individual as anemic? - CORRECT ANSWERS- they have
reduced oxygen-carrying capacity of blood
list physical characteristics of cardiac muscle cells - CORRECT ANSWERS- -
intercalated discs
- striated
- nuclei
- gap junctions
a patient has a stroke volume of 70ml/beat, a heart rate of 70 beats per
minute, a mean arterial pressure of 100, systolic BP of 95 and diastolic BP of
60. Calculate the output of this patient. - CORRECT ANSWERS- CO = SV x HR
70 x 70 = 4900ml/min
= 4.9L/min
which ions mediate the upstroke, plateau, and downstroke of a cardiac
action potential. indicate the contraction phase that correlates to these
events - CORRECT ANSWERS- upstroke = sodium; depolarization
plateau = calcium; contraction
downstroke = potassium; relaxation
what are the three layers of the heart? - CORRECT ANSWERS- epicardium,
myocardium, endocardium