Term
| principle elements of lungs |
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Definition
thoracic cavity
bronchus-lungs to trachea, ends at alveoli(diffusion of gases)
trachea-air tube from mouth to bronchus
larynx-voice box |
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Term
| inhalation and exhalation |
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Definition
inhalation-diaphragm contracts downwards, chest lifts upward
exhalation-diaphragm relaxes, pushes up, chest moves down |
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Term
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Definition
| oxygen is carried by hemoglobin in red blood cells, loads up with o2 in lungs(alveoli) and goes to tissues, unloads and then pick up CO2 and carries to lungs |
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Term
| circulation in hydras and jellyfish |
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Definition
| gastrovascular cavity-brings water with nutrients and dissolved genes close to cells |
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Term
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Definition
| open circulatory- heart pumps blood into body cavity |
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Term
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Definition
arteries-away from heart
veins-back to heart
capillaries connect arteries to veins |
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Term
how many chambered hearts for
fish
mammals |
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Definition
fish-2 (ventricle-strong muscles that push blood through gills)
mammals-4 dual pumping system |
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Term
| CIRCULATION THROUGH HEART AND BODY |
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Definition
| pulmonary vein to left atrium, to left ventricle, aorta, arteries, capilaries, veins, vena cava, right atrium, right ventricle, pulmonary artery, lungs |
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Term
| sinoatrial (SA) node vs AV atrioventricular node |
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Definition
| SA pacemaker, AV is relay point |
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Term
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Definition
discharge of blood against AV valves
ventricles close=lub
discharge of blood against SA valves and atria close-dupp |
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Term
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Definition
| turbulence (shh) when valves fail to close |
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Term
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Definition
diastolic-chambers are open and muscles are relaxed (70-90)
systolic-ventricles are contractinh (110-130) |
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Term
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Definition
| pressure of blood against walls of arteries |
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Term
| velocity and pressure in arteries vs capillaries vs veins |
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Definition
| high in arteries, moderate in capillaries, low in veins |
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Term
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Definition
damage or death of cardiac muscle tissue because of blockage
angina-pain in chest bc of exercise or stress-not enough oxygen
stroke-death of brain cells bc of blocked arteries to brain |
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Term
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Definition
| allow food, gases, waste to transfer through their walls |
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Term
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Definition
plasma-55% (water, salt, proteins)
cells-45% |
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Term
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Definition
platelets-clotting
red-carry oxygen to hemoglobin
white-defense |
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