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Exam (elaborations)
GMS6474 Medical Cardiovascular and Muscle Physiology
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---26December 20242024/2025A+
- What is the primary pacemaker of the heart? 
The sinoatrial (SA) node. 
2. Which ion is primarily responsible for the plateau phase of the 
cardiac action potential? 
Calcium (Ca2+). 
3. What is the Frank-Starling law of the heart? 
The heart's stroke volume increases in response to an increase in the volume 
of blood filling the heart (end-diastolic volume). 
4. What is the resting membrane potential of cardiac muscle cells? 
Approximately −90 mV. 
5. Which structure connects cardiac muscl...
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TrustedExaminer
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Exam (elaborations)
Anatomy - Cardiovascular Exam Questions and Answers Latest Update Graded A+
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--11October 20242024/2025A+Available in bundle
- Anatomy - Cardiovascular Exam Questions and Answers Latest Update Graded A+ 
Which of the following would increase cardiac output to the greatest extent? 
A. increased heart rate and decreased stroke volume 
B. decreased heart rate and decreased stroke volume 
C. decreased heart rate and increased stroke volume 
D. increased heart rate and increased stroke volume - Answers D 
Which of the following would increase heart rate? 
A. decreased activity of the sympathetic nervous system 
B. increased ...
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TutorJosh
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Exam (elaborations)
Cardiovascular- Anatomy 55 Questions with 100% Correct Answers | Verified | Updated 2024
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---6February 20242023/2024A+
- Aorta - ️️the body's largest artery. Takes oxygenated blood from the left ventricle to the body. 
 
Pulmonary Artery - ️️carries deoxygenated blood from the right ventricle to the lungs. 
 
Right Artrium - ️️Receives deoxygenated blood from the body 
 
Left Ventricle - ️️Pumps oxygenated blood into the aorta 
 
Right Ventricle - ️️pumps deoxygenated blood into the pulmonary artery 
 
Bicuspid Valve - ️️valve between the left atrium and the left ventricle. 
 
Tricuspid Va...
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jacklineshee00