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Cards In This Set
| Front | Back |
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Heart sits in the center L side of your ________.
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Thoracic cavity
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Cardiac tissue found only in heart
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- Mycardium
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Veins-
Arteries- |
Veins- lead into heart
Arteries- lead out of heart |
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Thick wall separating the chamber
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- Septum
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CO2-rich blood enters the heart through the_______.
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Superior and inferior vena cava
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CO2-rich blood enters the lungs through the ________.
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Pulmonary arteries
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Pulmonary veins empty O2-rich blood into the __________.
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Left atrium
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Valve connecting LA and LV
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Bicuspid or mitral valve
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Valve connecting the RA and RV
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Tricuspid valve
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1. The internal pacemaker is the ________ node.
2. It is located in the _________. |
1. Sinoatrial
2. RA, below the superior vena cava |
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1. AV valves / nodes = ________.
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1. bicuspid and tricuspid valves / nodes
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Cardiac fiber muscles send the SA signal to the ________ of the heart.
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Apex
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1. Cardiac cycle = ___ sec2. Average of _____ bpm3. Average cardiac output = ____ mL
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1. 0.82. 753. 75
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Cardiac output(and equation)
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- The volume of blood pumped out of the LV per min- Equation: 'a' beats/min X 'b' mL/beat
EX: 70 beat/min X 75 mL/beat = 5,250 mL/min = 5.25 L/min |
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1. Lub-dub sounds caused by (opening / closing) of valves?2. "Lub" caused by _____ valves "Dub" caused by _____ valves
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1. Closing2. Lub = AV valves Dub = semilunar valves
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