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resp. +urinary syste
science
| Question | Answer |
|---|---|
| what are the 3 most dangerous chems in cigarettes and some of their effects on the body. | Nicotine-constricts blood vessels, affects brain-causes addiction carbon monoxide-stronger attraction to hemoblobin-is picked up vs. oxygen so not enough o2 4 cellular resp. tar-coats alveoli+interferes w/gas exchange |
| list some effects of smoking on the body | yellow fingers+teeth smelly clothes+body+breath holes in furniture +clothes bronchitis emphysema cold extremities many types cancer(lung, throat,esophagus etc.) heart attack high bp |
| why do smokers have a harder time with physical activity? | tar deteriorates alveoli- gas exchange less efficient-less o2 going to body cells=harder to produce energy. |
| how is our breathing controlled? | medulla in brain detects co2 levels in blood-when increase-sends nerve messages to diaphragm-contract faster. when decrease-sends fewer messages |
| how are carbon hydrogen oxygen and nitrogen constantly rearranged in cells? | C, H, O always going through cellular respiration. nitrogen-always being changed to urea. |
| what is the differences between a normal lung and a pneumonia lung on xray? | pneum lung is whiter-less space, can see some solid bits in the lung vs. normal lung is for the most part completely black. higher density in pneum. lung. |
| Identify causes symptoms+treatments of pneumonia | symptoms:fluid produced to wash away toxins irritating lungs. causes-bacteria, virus, toxins treatments- antibiotics 4 bac-need to just wait it out for virus+toxins |
| how is air different at different elevations? how does the body adapt to this? | there is less oxygen at higher elevations-body producs more rbcs and rbcs produce more hemoblobin. |
| what happens w/ diaphragm, ribs/intercostal muscles during inhalation. | diaphragm contracts- flattening for more space. intercostals pull ribs up and out creating more space. |
| how do air pressure/volume in lungs+chest cavity change during inhalation? | lungs- ap-increases-rush of air. volume-increases(lungs inflate) chest cavity: ap-decreases-more space so less pressure volume-increases-more space |
| what happens w/diaphragm, ribs/intercostal muscles during exhalation. | diaphragm-relaxs-moves up intercostals relax, moving ribs down and in. |
| how do the volume+air pressure of the lungs and chest cavity change during exhalation? | lungs: ap-decreases-air leaves volume-decreases air leaves chest cavity: ap-increases-less space same amount air volume-decreases-less space |
| list examples of wastes and how they are excreted | some water-every kind of excretion co2-breathed salt-urine urea/nitrogen-urine left over food+water-feces |
| what are some things that should be found in urine. what are some that should not. | should: nitrogen, water, calcium, salt, occasionally sugar shouldn't: blood, too much sugar |
| describe how the digestive, urinary, respiratory and circulatory systems interact. | digestive-breaks down food into sugar 4 cellular resp. circ. carries sugar+gases to cells+resp. system. resp system provides oxygen+gets rid of co2. circ. system carries some wastes to urinary system gets rid of them(urine) |
| explain what diabetes is using blood sugar, insulin, pancreas, body cells. | pancreas doesnt produce insulin...insulin alerts body cells of glucose in blood(blood sugar) so it can allow it to cross membrane for cellular respiration. |
Created by:
jlesnick
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