IUPUI PHYSIOLOGY EXAM 4 REAL EXAM 2026 |
ALL QUESTIONS AND CORRECT ANSWERS |
GRADED A+ | VERIFIED ANSWERS | BRAND
NEW VERSION!
Chamber of the heart responsible for pumping blood into pulmonary
circulation ---------CORRECT ANSWER-----------------right ventricle
True or False
Diastolic refers to contraction of heart muscle ---------CORRECT
ANSWER-----------------false
True or False
An ECG is a tracing of an AP of a cardiac muscle cell ---------CORRECT
ANSWER-----------------false
Is there pressure when dealing with fluids? ---------CORRECT ANSWER----
-------------Yes! Always
,Resistance= ---------CORRECT ANSWER-----------------resisting flow
Flow rate ---------CORRECT ANSWER-----------------volume/time (L/min)
(mL/min)
Velocity of flow ---------CORRECT ANSWER-----------------distance/time
(cm/min) (mm/sec)
The unit Q refers to... ---------CORRECT ANSWER-----------------flow rate
In Cardiac Myofiber Excitation Contraction Coupling,
letting Ca 2+ in does what? ---------CORRECT ANSWER-----------------
activates the Sarcoplasmic Reticulum
Force developed= ---------CORRECT ANSWER-----------------# of cross
bridges
,Frank Starlings Law show the ______________ relationship between
length and force ---------CORRECT ANSWER-----------------proportional
Rapid depolarization is the result of... ---------CORRECT ANSWER-----------
------voltage gated Na+ channels
The benefit of no cardiac muscle tetanus... ---------CORRECT ANSWER----
-------------allows the heart to act autorythmically, not reliant on the
build of up force in order to reach an AP-->contract
Contracting--> ---------CORRECT ANSWER-----------------muscle cells
Conducting--> ---------CORRECT ANSWER-----------------autorhythmic cells
What 2 things need to happen for a cardiac muscle cell to reach
threshold? ---------CORRECT ANSWER-----------------1. pace maker
potential (I subset f)
2. T-Type voltage gated Ca 2+ channels
, T/F
Pace maker potential will take you all the way up to threshold potential
---------CORRECT ANSWER-----------------F
You need the pacemaker potential first, then the T-Type voltage gated
Ca 2+ channels to take you the extra distance
What is special about "Funny Channels"? ---------CORRECT ANSWER------
-----------They allow movement of both Na+ and K+
What is the general rule of thumb when considering the movement of
Na+ and K+ ---------CORRECT ANSWER-----------------Na+ > K+
Which of the following ion channel and cell type is paired correctly?
a) I(f) voltage gated Na+ channels: contracting myofiber
b) T type voltage gated Ca2+ channels: contracting fibers
c) L type voltage gated Ca2+ channels: conduction fiber
d) all are correctly paired ---------CORRECT ANSWER-----------------c) L
type voltage gated Ca2+ channels: conduction fiber
ALL QUESTIONS AND CORRECT ANSWERS |
GRADED A+ | VERIFIED ANSWERS | BRAND
NEW VERSION!
Chamber of the heart responsible for pumping blood into pulmonary
circulation ---------CORRECT ANSWER-----------------right ventricle
True or False
Diastolic refers to contraction of heart muscle ---------CORRECT
ANSWER-----------------false
True or False
An ECG is a tracing of an AP of a cardiac muscle cell ---------CORRECT
ANSWER-----------------false
Is there pressure when dealing with fluids? ---------CORRECT ANSWER----
-------------Yes! Always
,Resistance= ---------CORRECT ANSWER-----------------resisting flow
Flow rate ---------CORRECT ANSWER-----------------volume/time (L/min)
(mL/min)
Velocity of flow ---------CORRECT ANSWER-----------------distance/time
(cm/min) (mm/sec)
The unit Q refers to... ---------CORRECT ANSWER-----------------flow rate
In Cardiac Myofiber Excitation Contraction Coupling,
letting Ca 2+ in does what? ---------CORRECT ANSWER-----------------
activates the Sarcoplasmic Reticulum
Force developed= ---------CORRECT ANSWER-----------------# of cross
bridges
,Frank Starlings Law show the ______________ relationship between
length and force ---------CORRECT ANSWER-----------------proportional
Rapid depolarization is the result of... ---------CORRECT ANSWER-----------
------voltage gated Na+ channels
The benefit of no cardiac muscle tetanus... ---------CORRECT ANSWER----
-------------allows the heart to act autorythmically, not reliant on the
build of up force in order to reach an AP-->contract
Contracting--> ---------CORRECT ANSWER-----------------muscle cells
Conducting--> ---------CORRECT ANSWER-----------------autorhythmic cells
What 2 things need to happen for a cardiac muscle cell to reach
threshold? ---------CORRECT ANSWER-----------------1. pace maker
potential (I subset f)
2. T-Type voltage gated Ca 2+ channels
, T/F
Pace maker potential will take you all the way up to threshold potential
---------CORRECT ANSWER-----------------F
You need the pacemaker potential first, then the T-Type voltage gated
Ca 2+ channels to take you the extra distance
What is special about "Funny Channels"? ---------CORRECT ANSWER------
-----------They allow movement of both Na+ and K+
What is the general rule of thumb when considering the movement of
Na+ and K+ ---------CORRECT ANSWER-----------------Na+ > K+
Which of the following ion channel and cell type is paired correctly?
a) I(f) voltage gated Na+ channels: contracting myofiber
b) T type voltage gated Ca2+ channels: contracting fibers
c) L type voltage gated Ca2+ channels: conduction fiber
d) all are correctly paired ---------CORRECT ANSWER-----------------c) L
type voltage gated Ca2+ channels: conduction fiber
