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bios 255 exam 1 (Latest Update ) Questions
with Answers | Grade A | 100% Correct
name the structure and whether it contains oxygenated or
deoxygenated blood - ANSWER right atrium; deoxygenated
name the structure - ANSWER aortic semilunar valve
oxygen is carried by _______ cells. it binds to proteins called
______ that contain iron - ANSWER erythrocytes; hemoglobin
of the formed elements, which cells are responsible for immune
function, clotting, and gas transfer-in that order? - ANSWER
leukocytes, platelets, erythrocytes
what are the major functions of blood? (you must name 3) -
ANSWER 1) plays a role in immune function
2) temp regulation
3) pH regulation
4) gas/nutrients/ waste transport
5) regulates water loss
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a patient has a stroke volume of 70ml/beat, a heart rate of 70
beats/min, a mean arterial pressure of 100, systolic BP of 95
and diastolic BP of 60. calculate output of this patient -
ANSWER CO=SVxHR=70ml/beat/min=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 - ANSWER upstroke=sodium;
depolarization
plateau=calcium; contraction
downstroke=potassium; relaxation
what are the three layers of the heart? - ANSWER epicardium,
myocardium, endocardium
what is the fluid filled sac called that surrounds the heart? -
ANSWER pericardium
when red blood cells get broken down, the iron molecule is
transferred from the macrophage to the liver with which
transfer protein? - ANSWER transferrin
bios 255 exam 1 (Latest Update ) Questions
with Answers | Grade A | 100% Correct
name the structure and whether it contains oxygenated or
deoxygenated blood - ANSWER right atrium; deoxygenated
name the structure - ANSWER aortic semilunar valve
oxygen is carried by _______ cells. it binds to proteins called
______ that contain iron - ANSWER erythrocytes; hemoglobin
of the formed elements, which cells are responsible for immune
function, clotting, and gas transfer-in that order? - ANSWER
leukocytes, platelets, erythrocytes
what are the major functions of blood? (you must name 3) -
ANSWER 1) plays a role in immune function
2) temp regulation
3) pH regulation
4) gas/nutrients/ waste transport
5) regulates water loss
, 2|Page
a patient has a stroke volume of 70ml/beat, a heart rate of 70
beats/min, a mean arterial pressure of 100, systolic BP of 95
and diastolic BP of 60. calculate output of this patient -
ANSWER CO=SVxHR=70ml/beat/min=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 - ANSWER upstroke=sodium;
depolarization
plateau=calcium; contraction
downstroke=potassium; relaxation
what are the three layers of the heart? - ANSWER epicardium,
myocardium, endocardium
what is the fluid filled sac called that surrounds the heart? -
ANSWER pericardium
when red blood cells get broken down, the iron molecule is
transferred from the macrophage to the liver with which
transfer protein? - ANSWER transferrin
