Podcast
Questions and Answers
What is the definition of Syncope?
What is the definition of Syncope?
- Fainting spell (correct)
- Phase of cardiac cycle
- Small veins
- Upper chamber of the heart
What is Systole?
What is Systole?
- The valve between heart chambers
- The heart's expelling blood phase (correct)
- A small vein
- The receiving chamber of the heart
What is Pulmonic?
What is Pulmonic?
The valve between the right ventricle and the pulmonary artery
What are Atria?
What are Atria?
What is Circumflex?
What is Circumflex?
What is Protodiastole?
What is Protodiastole?
What is Mitral?
What is Mitral?
What are Ventricles?
What are Ventricles?
What is Endocardium?
What is Endocardium?
What is Acetylcholine?
What is Acetylcholine?
What is Septum?
What is Septum?
What shape is Semilunar?
What shape is Semilunar?
What are Venules?
What are Venules?
What is a Capillary?
What is a Capillary?
Flashcards
Syncope
Syncope
A fainting spell due to insufficient blood flow to the brain.
Systole
Systole
The phase when the heart contracts and pumps blood.
Pulmonic Valve
Pulmonic Valve
Valve between the right ventricle and pulmonary artery, directs blood to the lungs.
Atria
Atria
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Circumflex Artery
Circumflex Artery
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Protodiastole
Protodiastole
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Mitral Valve
Mitral Valve
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Ventricles
Ventricles
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Endocardium
Endocardium
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Acetylcholine
Acetylcholine
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Septum
Septum
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Semilunar Valves
Semilunar Valves
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Venules
Venules
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Capillaries
Capillaries
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Study Notes
Cardiovascular Terminology
- Syncope: Refers to a fainting spell, indicating a temporary loss of consciousness due to insufficient blood flow to the brain.
- Systole: The phase in the cardiac cycle during which the heart contracts and expels blood from the ventricles into circulation.
- Pulmonic Valve: Located between the right ventricle and pulmonary artery, it plays a crucial role in directing blood flow toward the lungs.
- Atria: The upper chambers of the heart, characterized by thin walls, responsible for receiving blood.
Heart Anatomy
- Circumflex Artery: A branch stemming from the left main coronary artery, supplying blood to the lateral wall of the left ventricle, essential for heart muscle nutrition.
- Protodiastole: The third phase of systole where blood flow begins to diminish as pressures in atria and ventricles equalize, preparing for the next cycle.
- Mitral Valve: Positioned between the left atrium and left ventricle, essential for maintaining unidirectional blood flow into the ventricle.
- Ventricles: The heart's lower chambers, muscular and responsible for pumping blood out of the heart: right ventricle to the lungs, left ventricle to the body.
Cardiac Structure and Function
- Endocardium: The innermost layer of the heart wall, providing a smooth lining for heart chambers and valves to reduce friction during blood flow.
- Acetylcholine: A neurotransmitter that facilitates communication within the parasympathetic nervous system, playing a vital role in regulating heart rate.
- Septum: The muscular wall that divides the heart into right and left sides, preventing mixing of oxygenated and deoxygenated blood.
- Semilunar Valves: Valves shaped like half moons that regulate blood flow from the ventricles into the arteries (pulmonary and aortic).
- Venules: Small veins that collect deoxygenated blood from capillaries and transport it towards larger veins.
- Capillaries: Tiny blood vessels where the exchange of nutrients and oxygen occurs, connecting arterioles and venules.
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