Term
| Where is the heart located? |
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Definition
| Within the mediastinum, or medial vacity of the thorax |
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Term
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Definition
| encloses the heart within a double-walled fibroserous sac |
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Term
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Definition
| epicardium - is thin; closely applied to the heart muscle, reflects downward at the base of the heart to form its compaion serous membrane |
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Term
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Definition
| outer, looser, attached at the heart apex to the diaphragm |
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Term
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Definition
| (loosely, fitting, superficial), composed of dense connective tissue, lined by the serous parietal pericardium |
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Term
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Definition
| inflamation of the pericardium, causes painful adhesions between the serour pericarial layers (interferes with heart movements) |
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Term
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Definition
| cardiac muscle that the walls of the heart are composed primarily of, it is reinforced internally by a dense fibrous connective tissue network |
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Term
| Fibrous skeleton of the heart |
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Definition
| is the network that is more elaborate and thicker in certain areas, ex. aroung valves and at the base of the great vessels leaving the heart |
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Term
| Name the four chambers of the heart |
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Definition
| 2 superior atria and 2 inferior ventricles |
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Term
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Definition
| lines the chambers, thin serous endothelium |
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Term
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Definition
| (interventricular septum); septum that divides the heart longitudinally |
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Term
| What do the pulmonary veins do? |
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Definition
| deliver oxygen -riched blood from the lungs to the left atrium |
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Term
| What do the inferior thick-walled ventricles do? |
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Definition
| form the bulk of the heart and are the discharging chambers (force blood out of the heart into the large arteries that emerge from its base) |
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Term
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Definition
| receives blood from the right ventricle, then it routes blood to the lungs to be oxygenated |
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Term
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Definition
| recieves discharged blood from the left ventrice, all systemic arteries of the body diverge to supply the body tissues |
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Term
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Definition
| refers to discussions of the hearts pumping action |
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Term
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Definition
| atrioventricular valves, located between the atrial and ventricular chambers on each side, prevent backflow into the atria when the ventricles are contracting |
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Term
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Definition
| bicuspid valve, two cusps(flaps) of endocardium (LAV) |
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Term
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Definition
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Term
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Definition
| tiny white collagenic cords(heart strings) anchor the cusps to the ventricular walls |
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Term
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Definition
| project from the myocardial wall that create the chordae tendineae |
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Term
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Definition
| period of ventricular filling |
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Term
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Definition
| ventricles contract and compress the blood into thier chambers |
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Term
| Pulmonary and aortic semilunar valves |
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Definition
| 2nd set of valves, composed of 3 pocketlike cusps, gaurds the based of the 2 large arteries leaving the ventriclular chambers |
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Term
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Definition
| Right side, pumo, shunting the carbon dioxide-rich blood entering its chambers to the lungs to unload CO and pick up O, back to the left side |
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Term
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Definition
| carries 0-rich blood from the L heart through body tissues and back to the R heart (supplies functional blood supply to all body tissues) |
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