Podcast
Questions and Answers
Where is the heart located in the body?
Where is the heart located in the body?
What separates the heart from other structures?
What separates the heart from other structures?
Which chamber of the heart receives blood from the body?
Which chamber of the heart receives blood from the body?
Which blood vessels always carry blood back to the heart?
Which blood vessels always carry blood back to the heart?
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In which circuit does blood get oxygenated?
In which circuit does blood get oxygenated?
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What is the function of the fibrous pericardium?
What is the function of the fibrous pericardium?
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What is the function of the atrioventricular valves in the heart?
What is the function of the atrioventricular valves in the heart?
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Where are the papillary muscles located and what is their role?
Where are the papillary muscles located and what is their role?
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What causes the depolarization of the atria as seen in an EKG?
What causes the depolarization of the atria as seen in an EKG?
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Which part of the heart establishes the cardiac rhythm?
Which part of the heart establishes the cardiac rhythm?
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What is the function of the AV node in the heart's conduction system?
What is the function of the AV node in the heart's conduction system?
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What is the purpose of using an electrocardiogram (EKG) in diagnosing cardiac problems?
What is the purpose of using an electrocardiogram (EKG) in diagnosing cardiac problems?
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What does the T wave represent in an EKG reading?
What does the T wave represent in an EKG reading?
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During which phase of the cardiac cycle do the atrioventricular valves open prior to atrial contraction?
During which phase of the cardiac cycle do the atrioventricular valves open prior to atrial contraction?
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'Dub' sound, known as S2, occurs at which phase of the cardiac cycle?
'Dub' sound, known as S2, occurs at which phase of the cardiac cycle?
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Which layer of the blood vessel contains muscles for vasoconstriction and vasodilation?
Which layer of the blood vessel contains muscles for vasoconstriction and vasodilation?
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Where are elastic arteries typically found in relation to the heart?
Where are elastic arteries typically found in relation to the heart?
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What is the primary function of precapillary sphincters?
What is the primary function of precapillary sphincters?
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What does a MAP (Mean Arterial Pressure) below 60 mm Hg for an extended time result in?
What does a MAP (Mean Arterial Pressure) below 60 mm Hg for an extended time result in?
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What is the name for the condition of insufficient blood flow accompanied by hypoxia?
What is the name for the condition of insufficient blood flow accompanied by hypoxia?
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Which vessels have large lumen and thin walls, along with shunts or valves to prevent backflow?
Which vessels have large lumen and thin walls, along with shunts or valves to prevent backflow?
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What does low blood volume lead to in terms of blood pressure?
What does low blood volume lead to in terms of blood pressure?
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What is the difference between systolic and diastolic blood pressure known as?
What is the difference between systolic and diastolic blood pressure known as?
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What do fenestrated capillaries possess that allows them to be more permeable?
What do fenestrated capillaries possess that allows them to be more permeable?
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What is the function of the external elastic membrane in blood vessels?
What is the function of the external elastic membrane in blood vessels?
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What is the role of vessel diameter in blood flow?
What is the role of vessel diameter in blood flow?
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Which system must have greater pressure than the atria during diastole?
Which system must have greater pressure than the atria during diastole?
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What drives blood out of the capillaries and into tissues?
What drives blood out of the capillaries and into tissues?
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What happens during reabsorption in capillaries?
What happens during reabsorption in capillaries?
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What triggers the release of Antidiuretic Hormone (ADH)?
What triggers the release of Antidiuretic Hormone (ADH)?
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What hormone is released by the kidneys and stimulates hematopoiesis?
What hormone is released by the kidneys and stimulates hematopoiesis?
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What regulates vascular homeostasis through neurologic control?
What regulates vascular homeostasis through neurologic control?
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What stimulates vasodilation eventually?
What stimulates vasodilation eventually?
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Which response is triggered by changes in CO2 and hydrogen levels?
Which response is triggered by changes in CO2 and hydrogen levels?
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What is the effect of autoregulation of Perfusion?
What is the effect of autoregulation of Perfusion?
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What is the equation for cardiac output (CO)?
What is the equation for cardiac output (CO)?
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Which factor influences stroke volume the most?
Which factor influences stroke volume the most?
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What is the target heart rate range for maximizing benefits from aerobic exercise?
What is the target heart rate range for maximizing benefits from aerobic exercise?
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Which hormone contributes to the 'fight or flight' response and can increase heart rate?
Which hormone contributes to the 'fight or flight' response and can increase heart rate?
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What is the most likely result of a decrease in calcium ion concentration in the body?
What is the most likely result of a decrease in calcium ion concentration in the body?
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Which nerve controls a decrease in heart rate through the release of acetylcholine?
Which nerve controls a decrease in heart rate through the release of acetylcholine?
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At peak performance, how many times greater can the cardiac output of elite athletes be compared to normal individuals?
At peak performance, how many times greater can the cardiac output of elite athletes be compared to normal individuals?
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What is the main difference in the location of vasa vasorum between arteries and veins?
What is the main difference in the location of vasa vasorum between arteries and veins?
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'Tunica intima', 'tunica media', and 'tunica externa' are the layers of which structure?
'Tunica intima', 'tunica media', and 'tunica externa' are the layers of which structure?
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