BME 235 Midterm 2 Study
Guide questions with 100%
correct answers(100%
accuracy)
What are the three types of cardiac cells - answer Ventricular, Conductive,
Atrial
What parts does the left side of the heart have on paper - answer Superior
Vena Cava, Right Atrium, Pulmonary Valve, Tricuspid Valve, Right
Ventricle, Inferior Vena Cava
What parts does the right side of heart have on paper - answer Aorta,
Pulmonary Artery, Pulmonary Veins, Left Atrium, Aortic Valve, Mitral
Valve, Left Ventricle,
What are Cordae Tendinae - answer strong, fibrous connections between
the valve leaflets and the papillary muscles, attached to the leaflets on to
the ventricular side and prevent the cusps from swinging back into the
atrial cavity
What are papillary muscles - answer These muscles attach to the tricuspid
and mitral valve leaflets via the chordae tendineae and functionally
prevent regurgitation of ventricular blood via tensile strength
What is the pathway for electrical signal of a heartbeat - answer Sinoatrial
node sends exciting signal into heart, approaches the atrioventricular
node, delays here to conduct the atrium, then goes to the ventricles to the
left batch then the right, then passed to the Purkinje fibers
, How many syncytium are there in a human heart, why? - answer There are
2 which allows for a proper pumping system due to there being two
signals going out for synchronization
What ion channel is responsible for the plateau in cardiac muscle cells -
answer L-Ca2+NA+ Ion Channel
What is the physiological function of the atrial contraction during a
heartbeat - answer Sets up ventricle contraction and keeps the division of
heart sections
HeartBeat in Millivolts by Time: What are the different sections of
diagram? - answer P, Q, R, S, and T waves in order
What can cause decreased voltage less than 0.5 mV in an ECG? - answer
When the heart mass decreases known as cariomyopathy
What can cause slow heart rate? - answer Many things such as heart
attack, electrolyte imbalance, aging etc. can cause slow heart rate known
as bradycardia
What can cause arrhythmia (Break in pattern) of an ECG - answer A heart
attack
How to calculate blood flow - answer Change in P from start to finish /
resistance
Laminar flow - answer Reynolds Number is less than 2000, Slower flow
because of friction near walls, normal
Turbulent Flow - answer Reynolds Number is greater than 2000, Flows in
all directions without a straight line, abnormal
Formula for volume of plasma - answer Volume of blood - (volume of blood
* hematocrit)
Guide questions with 100%
correct answers(100%
accuracy)
What are the three types of cardiac cells - answer Ventricular, Conductive,
Atrial
What parts does the left side of the heart have on paper - answer Superior
Vena Cava, Right Atrium, Pulmonary Valve, Tricuspid Valve, Right
Ventricle, Inferior Vena Cava
What parts does the right side of heart have on paper - answer Aorta,
Pulmonary Artery, Pulmonary Veins, Left Atrium, Aortic Valve, Mitral
Valve, Left Ventricle,
What are Cordae Tendinae - answer strong, fibrous connections between
the valve leaflets and the papillary muscles, attached to the leaflets on to
the ventricular side and prevent the cusps from swinging back into the
atrial cavity
What are papillary muscles - answer These muscles attach to the tricuspid
and mitral valve leaflets via the chordae tendineae and functionally
prevent regurgitation of ventricular blood via tensile strength
What is the pathway for electrical signal of a heartbeat - answer Sinoatrial
node sends exciting signal into heart, approaches the atrioventricular
node, delays here to conduct the atrium, then goes to the ventricles to the
left batch then the right, then passed to the Purkinje fibers
, How many syncytium are there in a human heart, why? - answer There are
2 which allows for a proper pumping system due to there being two
signals going out for synchronization
What ion channel is responsible for the plateau in cardiac muscle cells -
answer L-Ca2+NA+ Ion Channel
What is the physiological function of the atrial contraction during a
heartbeat - answer Sets up ventricle contraction and keeps the division of
heart sections
HeartBeat in Millivolts by Time: What are the different sections of
diagram? - answer P, Q, R, S, and T waves in order
What can cause decreased voltage less than 0.5 mV in an ECG? - answer
When the heart mass decreases known as cariomyopathy
What can cause slow heart rate? - answer Many things such as heart
attack, electrolyte imbalance, aging etc. can cause slow heart rate known
as bradycardia
What can cause arrhythmia (Break in pattern) of an ECG - answer A heart
attack
How to calculate blood flow - answer Change in P from start to finish /
resistance
Laminar flow - answer Reynolds Number is less than 2000, Slower flow
because of friction near walls, normal
Turbulent Flow - answer Reynolds Number is greater than 2000, Flows in
all directions without a straight line, abnormal
Formula for volume of plasma - answer Volume of blood - (volume of blood
* hematocrit)
