Podcast
Questions and Answers
What is the formula for calculating cardiac output (CO)?
What is the formula for calculating cardiac output (CO)?
- CO = ESV + HR
- CO = SV / HR
- CO = EDV - ESV
- CO = SV * HR (correct)
Which nerve is responsible for decreasing heart rate through the release of acetylcholine?
Which nerve is responsible for decreasing heart rate through the release of acetylcholine?
- Cardiac accelerator nerves
- Phrenic nerve
- Vagus nerve (CN X) (correct)
- Sympathetic nerve
What is the normal stroke volume for a 150 lbs. individual?
What is the normal stroke volume for a 150 lbs. individual?
- 100 ml
- 70 ml (correct)
- 50 ml
- 120 ml
What does an increase in calcium ions do to heart rate?
What does an increase in calcium ions do to heart rate?
What does the limbic system influence in relation to heart rate?
What does the limbic system influence in relation to heart rate?
What does altered amounts of sodium (NA) and potassium (K) affect in the body?
What does altered amounts of sodium (NA) and potassium (K) affect in the body?
Where is the heart located in the body?
Where is the heart located in the body?
Which type of athletes are more likely to exhibit cardiac hypertrophy?
Which type of athletes are more likely to exhibit cardiac hypertrophy?
Which statement about the pericardium is correct?
Which statement about the pericardium is correct?
What is the function of arteries in the circulatory system?
What is the function of arteries in the circulatory system?
Which septum separates the right atrium from the right ventricle?
Which septum separates the right atrium from the right ventricle?
What is the function of pulmonary veins in circulation?
What is the function of pulmonary veins in circulation?
What is the function of the semilunar valves in the heart?
What is the function of the semilunar valves in the heart?
Where are the papillary muscles located in the heart?
Where are the papillary muscles located in the heart?
Which component establishes the cardiac rhythm in the heart?
Which component establishes the cardiac rhythm in the heart?
What element(s) cause the action potential (electrical current) in cardiac muscle cells?
What element(s) cause the action potential (electrical current) in cardiac muscle cells?
When does the T wave occur in the cardiac cycle?
When does the T wave occur in the cardiac cycle?
What is the end diastolic volume of the heart approximately?
What is the end diastolic volume of the heart approximately?
What initiates atrial contraction in the heart?
What initiates atrial contraction in the heart?
What causes the closing sound 'Dub' in heart auscultation?
What causes the closing sound 'Dub' in heart auscultation?
Which chamber in the heart is responsible for pumping blood into the systemic circuit?
Which chamber in the heart is responsible for pumping blood into the systemic circuit?
During which phase do semilunar valves close and atrioventricular valves remain closed in the heart's cycle?
During which phase do semilunar valves close and atrioventricular valves remain closed in the heart's cycle?
