Term
| where is the heart located? |
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Definition
| on sternum towards left side |
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Term
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Definition
space in center of thorax
where the heart lies in the chest and where trachea, esophagus, aorta, and vena cava run |
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Term
| name the four major blood vessels of the heart |
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Definition
| vena cava, pulmonary artery, pulmonary veins, aorta |
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Term
| explain the path of blood through the heart |
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Definition
unoxygenated blood from body to vena cava
to right atrium
through right AV valve (tricuspid valve)
to right ventricle
through pulmonic valve
to pulmonary artery
to longs where blood picks up oxygen and drops off CO2
to pulmonary veins
to left atrium
through left AV valve (mitral valve)
to left ventricle
through aortic valve
to aorta
to the body |
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Term
| how are heart valves attached to heart muscle? |
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Definition
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Term
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Definition
electrical impulse conducted through heart
path of impulse allows heart to beat in coordinated manner |
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Term
| what is considered the "pacemaker" of the heart? |
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Definition
| the sino-atrial node or the SA node |
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Term
| where does electrical impulse begin? |
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Definition
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Term
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Definition
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Definition
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