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Cardio study for PEAT Exam with 100- correct answers 2025(passed).
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Cardio study for PEAT Exam with 100- correct answers 2025(passed).
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Cardio study for PEAT Examwith 100% correct answers
2025(passed)
(Conduction system of the heart)
Sinoatrial Node (SA)
where is it at?
what is it and what does it do? - answer - found in Right Atrium
- Natural pacemaker, where electrical impulses arise.
- Impulse is sent to the atrioventricular (AV)
(Conduction of the Heart)
Atrioventricular Node (AV)
what is it what id - answer - Major function is to slow down the
cardiac impulses and allow ventricles to fill
(Conduction system)
Parasympathetic
what is it and what does it do?
what Nerve? - answer - Vagus nerve
- slows HR via SA node
- Rest and Digest
(Conduction System)
Sympathetic
what is it and what does it do? - answer - increases HR
, - epinephrine and norepinephrine. (Fight-or-Flight Response)
What is
Epinephrine and Norepinephrine
and what is it under? - answer - part of the Sympathetic
- Epinephrine (Adrenaline): Primarily prepares the body for rapid
action in stressful situations by increasing heart rate, blood
pressure, and energy supply.
Norepinephrine (Noradrenaline): Maintains blood pressure and
alertness, acting both as a neurotransmitter and a hormone.
Blood flow through the heart - answer Blood enters the heart via
the superior and inferior vena cave into the RA. Blood moves
forward from the RA through the tricuspid valve into the RV. It then
passes through the pulmonary valve to the pulmonary artery and
pulmonary capillaries. The capillaries perfuse the alveoli, and the
alveolar capillary membrane is the site of gas exchange. Newly
oxygenated blood within the pulmonary veins travels to the left
atrium and passes through the mitral valve into the LV. Blood within
the LV travels down to the apex, where it is squeezed in a wring
motion during systole and moved from the apex to the LV outflow
tract and finally out through the aortic valve to the aorta.
what are the
Heart chambers and what do they do? - answer - Right atrium:
receives deoxygenated blood returning from body thro Superior
Vena Cava and Inferior Vena Cava. Pumps blood into right ventricle.
- Right Ventricle: Pumps blood to lungs via Pulmonary Artery.
- Left Atrium: Receives oxygenated blood from lungs, pumps blood
to left Ventricle
- Left ventricle: Pumps oxygenated blood to the body through Aorta
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