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26 Cards in this Set
- Front
- Back
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4 chambers of the heart
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right atrium - right ventricle - left atrium - left ventricle
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4 chambers of the heart are separated by ____ & ____ ____ or walls
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interatrial - interventricular septa
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all deoxygenated blood from the body goes into the ____ ____ through the ____ & ____ ____ ____
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right atrium - superior - inferior vena cava
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both atria have ____ walls
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thin
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auricles are flap-like extensions on the external surface of both atria allow for ____
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expansion
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fossa ovalis in the right atrium is a depression in the ____ ____ & is open …
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medial wall - prior to birth
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pectinate muscles in the right & left atria are located
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on anterior walls
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tricuspid valve in right atrium is located on the ____ border & regulates blood flow from the right atrium to ____ ____
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inferior - right ventricle
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what distinct physical feature does the left atrium have
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4 pulmonary veins on the back wall (can have up to 8)
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the 4 pulmonary veins dump into the ____ ____
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left atrium
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the pulmonary veins carry ____ blood from the ____ back to the ____
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oxygenated - lungs - heart
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tricuspid valve separate the ____ ____ from the ____ ____
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right atrium - right ventricle
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ridges of muscle that align ventricle walls
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trabeculae carneae
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cylinder cone-shape muscle fastened to ventricle walls
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papillary muscles
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attached to papillary muscles are stringy
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chordae tendineae
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when ventricle contract ____ ____ contract at the same time & pull on ____ ____
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papillary muscles - chordae tendineae
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the pulling of the chordae tendineae by the papillary muscles prevent
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prolapse of the valve so they stay shut (tricuspid + bicuspid)
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what is the exit on the right ventricle
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pulmonary trunk
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blood travels from the pulmonary trunk & branches to the ____ & ____ ____ ____
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left - right pulmonary artery
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____ blood from the pulmonary trunk is taken to ____
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deoxygenated - lungs
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which chamber has the thickest wall
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left ventricle
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pulmonary semilunar valve is located…
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at the base of the pulmonary trunk
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aorta semilunar valve is located in the
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aorta
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moderator band keeps ____ ____ from ____
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right ventricle - overstretching
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what is the circulation called on the left side of the heart
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system circulation
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what is the circulation called on the right side of the heart
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pulmonary circulation
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