physiology exam 2 EXAM QUESTIONS WITH
DETAILED VERIFIED ANSWERS
What does the heart do? - ANSWER>>Generates pressure to drive blood
through vessels
what are the four chambers of the heart? - ANSWER>>Right atrium, left atrium,
left ventricle, right ventricle
what are the receiving chambers of the heart? - ANSWER>>Right and left atrium
What are the pumping chambers of the heart? - ANSWER>>Right and left
ventricles
What does pericardial fluid do? - ANSWER>>lubricates the external surface of
the heart as it beats within the sac
Right heart blood flow - ANSWER>>superior vena cava, inferior vena cava, right
atrium, tricuspid valve, right ventricle, pulmonary valve, pulmonary arteries,
lungs
what type of blood does the right heart pump? - ANSWER>>deoxygenated
What type of blood does the left heart pump? - ANSWER>>oxygenated
Left heart blood flow - ANSWER>>lungs, pulmonary veins, left atrium, mitral
valve, left ventricle, aortic valve, aorta
During ventricular contraction what prevents backflow? - ANSWER>>AV valves
, during ventricular relaxation what prevents backflow from arteries into
ventricles? - ANSWER>>semilunar valves
what is stroke volume? - ANSWER>>volume of blood pumped in one heartbeat
how do you calculate stroke volume? - ANSWER>>EDV - ESV
if you increased EDV would SV be higher or lower? - ANSWER>>higher
if you increased ESV would SV be higher or lower? - ANSWER>>lower
what is ejection fraction? - ANSWER>>about of EDV pumped
how do you calculate EF? - ANSWER>>SV / EDV
what is cardiac output? - ANSWER>>total volume of blood pumped per minute
how to you calculate cardiac output? (Q) - ANSWER>>HR x SV
If you increase HR and SV would Q increase or decrease? - ANSWER>>increase
what do atrial muscles and ventricular muscles do? - ANSWER>>contract to
pump
what do specialized excitatory and conductive muscle fibers do? -
ANSWER>>electrical discharge and conduction of action potentials through the
heart
characteristics of cardiac contractile cells - ANSWER>>small muscle fibers, high
capillary densities, high number of mitochondria, striated, and central nucleus
what are cardiac muscle fibers connected by? - ANSWER>>intercalated discs
DETAILED VERIFIED ANSWERS
What does the heart do? - ANSWER>>Generates pressure to drive blood
through vessels
what are the four chambers of the heart? - ANSWER>>Right atrium, left atrium,
left ventricle, right ventricle
what are the receiving chambers of the heart? - ANSWER>>Right and left atrium
What are the pumping chambers of the heart? - ANSWER>>Right and left
ventricles
What does pericardial fluid do? - ANSWER>>lubricates the external surface of
the heart as it beats within the sac
Right heart blood flow - ANSWER>>superior vena cava, inferior vena cava, right
atrium, tricuspid valve, right ventricle, pulmonary valve, pulmonary arteries,
lungs
what type of blood does the right heart pump? - ANSWER>>deoxygenated
What type of blood does the left heart pump? - ANSWER>>oxygenated
Left heart blood flow - ANSWER>>lungs, pulmonary veins, left atrium, mitral
valve, left ventricle, aortic valve, aorta
During ventricular contraction what prevents backflow? - ANSWER>>AV valves
, during ventricular relaxation what prevents backflow from arteries into
ventricles? - ANSWER>>semilunar valves
what is stroke volume? - ANSWER>>volume of blood pumped in one heartbeat
how do you calculate stroke volume? - ANSWER>>EDV - ESV
if you increased EDV would SV be higher or lower? - ANSWER>>higher
if you increased ESV would SV be higher or lower? - ANSWER>>lower
what is ejection fraction? - ANSWER>>about of EDV pumped
how do you calculate EF? - ANSWER>>SV / EDV
what is cardiac output? - ANSWER>>total volume of blood pumped per minute
how to you calculate cardiac output? (Q) - ANSWER>>HR x SV
If you increase HR and SV would Q increase or decrease? - ANSWER>>increase
what do atrial muscles and ventricular muscles do? - ANSWER>>contract to
pump
what do specialized excitatory and conductive muscle fibers do? -
ANSWER>>electrical discharge and conduction of action potentials through the
heart
characteristics of cardiac contractile cells - ANSWER>>small muscle fibers, high
capillary densities, high number of mitochondria, striated, and central nucleus
what are cardiac muscle fibers connected by? - ANSWER>>intercalated discs
