bios 255 exam 1
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 - CORRECT ANSWER
- CO=SVxHR=70ml/beat/min=4900ml/min=4.9L/min
an individual has an increase in afterload, what effect would this have on
MAP - CORRECT ANSWER - an increase in afterload=decrease in
SV=decrease in CO=decrease in MAP
during the cardiac cycle, the heart experiences two isovolumetric states-
when do these occur? - CORRECT ANSWER - the beginning of
ventricular systole and beginning of ventricular diastole
during ventricular systole, what happens to the pressure within the
ventricles? - CORRECT ANSWER - it increases
during ventricular systole, what is happening to the blood volume within
the ventricle? - CORRECT ANSWER - first, there is no change-once
pressure is great enough and the semilunar valves one, volume drops
list the physical characteristics of cardiac muscle cells - CORRECT
ANSWER - intercalated discs, nuclei, striations, gap junctions
, name the structure - CORRECT ANSWER - aortic semilunar valve
name the structure and whether it contains oxygenated or
deoxygenated blood - CORRECT ANSWER - right atrium;
deoxygenated
of the formed elements, which cells are responsible for immune
function, clotting, and gas transfer-in that order? - CORRECT ANSWER -
leukocytes, platelets, erythrocytes
oxygen is carried by _______ cells. it binds to proteins called ______ that
contain iron - CORRECT ANSWER - erythrocytes; hemoglobin
the process of creating new red blood cells is called? - CORRECT
ANSWER - erythropoiesis
what 3 veins empty into the right atrium - CORRECT ANSWER -
superior vena cava, inferior vena cava, coronary sinus
what are 3 'systems' of blood circulation that we discussed in class? -
CORRECT ANSWER - pulmonary system
systemic system
coronary system
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 - CORRECT ANSWER
- CO=SVxHR=70ml/beat/min=4900ml/min=4.9L/min
an individual has an increase in afterload, what effect would this have on
MAP - CORRECT ANSWER - an increase in afterload=decrease in
SV=decrease in CO=decrease in MAP
during the cardiac cycle, the heart experiences two isovolumetric states-
when do these occur? - CORRECT ANSWER - the beginning of
ventricular systole and beginning of ventricular diastole
during ventricular systole, what happens to the pressure within the
ventricles? - CORRECT ANSWER - it increases
during ventricular systole, what is happening to the blood volume within
the ventricle? - CORRECT ANSWER - first, there is no change-once
pressure is great enough and the semilunar valves one, volume drops
list the physical characteristics of cardiac muscle cells - CORRECT
ANSWER - intercalated discs, nuclei, striations, gap junctions
, name the structure - CORRECT ANSWER - aortic semilunar valve
name the structure and whether it contains oxygenated or
deoxygenated blood - CORRECT ANSWER - right atrium;
deoxygenated
of the formed elements, which cells are responsible for immune
function, clotting, and gas transfer-in that order? - CORRECT ANSWER -
leukocytes, platelets, erythrocytes
oxygen is carried by _______ cells. it binds to proteins called ______ that
contain iron - CORRECT ANSWER - erythrocytes; hemoglobin
the process of creating new red blood cells is called? - CORRECT
ANSWER - erythropoiesis
what 3 veins empty into the right atrium - CORRECT ANSWER -
superior vena cava, inferior vena cava, coronary sinus
what are 3 'systems' of blood circulation that we discussed in class? -
CORRECT ANSWER - pulmonary system
systemic system
coronary system
