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160 Cards in this Set
- Front
- Back
body has to regulate:
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temp
ph--enzymes only operate at certain ph levels acid level in stomach gas levels-CO2 and 02 anaerobic res. or ph in blood down waste management |
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homeostasis
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body reaching equilibrium
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at true equlibrium you are
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dead
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why don't artic ice fish freeze? water ice?
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salt in water lowers freezing temp
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how many teeth?
kind determined by what? |
32
what you eat |
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tongue does what to food
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masticates/mixes with saliva
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what masticates?
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tongue
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uvula
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gag reflex
keeps you from swallowing too big |
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pharynx
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nasal passage and mouth joining
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esophogus leads to
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stomach
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trachya
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windpipe--goes to lungs
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epiglottis--
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flap that covers trachya, if it isn't working, food goes down wrong pipe
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parastaltic waves/parastaltis
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contract behind and relax in front, moves food down pipes like alimentary canal
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chyme
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liquid food in stomch
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where is the cardiac sphincter?
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right above the stomach
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where does heart burn occur and why?
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at the stomach opening--cardiac sphincter
when chyme comes back up, burns esophogus |
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the ridges in the stomach lining
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rugal
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rugal can
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mash food
grind unchewed food loaded with secretory cells to break down food |
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what leads to the intestine from the stomach
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the pyloric sphincter
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how much chyme does the pyloric sphincter let into the duodenum at a time?
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one tbls.
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duodenum
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first 6 inches of intestine
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what happens in the first 21 ft. of small intestine, not doudenum
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absorbtion
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what is absorbed by the small intestine
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glucoes
amino acids glycerol fatty acid |
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what does the duodenum break chyme into
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glucose
amino acid nucleic acid glycerol fatty acids |
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how long is the long intestine?
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3 ft.
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what does the 3 ft long intestine do?
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carries undigested food and unabsorbed material to the rectum the sphincter and then the anus
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put in order
sphincter, anus, rectum |
rectum, sphincter, anus
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what is absorbed by the lg. intest?
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water
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what does the ecoli bact. produce in your intest?
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vitamin K to prevent salmonella
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what is saliva made of?
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mucus/ water and amylase to act on starch
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must must a heterotroph do to to use the raw materials and energy in food?
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digest food into smaller macromolecules
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what are the 2 parts of digestion
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physical- break dow-teeth, chewing, to mmake
chemical part easier with enzymes |
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extracellular ddigestion who uses it
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digestion outside the cell that moves nutrients into the ccell
most animals and humans use it |
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intracellular digestion and who uses it
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digestion in the cells
plants and single celled organisms |
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what is the alt. to intra/extracellular digestion?
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make digestive enzymes secreted on the outside of the food and then absorb
fungi and mold |
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trace digestion
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ingestion
saliva epiglottis(trapdoor) esophogus (connects to stomach) moved to stomach by peristalstic cardiac shphincter stomach chyme lets out tbs into dduodenum last digestion then lg. absorption |
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epiglottis
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trapdoor to esophogas
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what is saliva
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amylase
breaks starch |
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ph of saliva
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6-7.4
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where does all carb digestion occur and why?
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in the mouth and path to the stomach because amylase works best in the ph 6-7 (mouth) and not in the acidic 1-4 ph of the stomach
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where are proteins digested
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in the stomach and the small iintestine requires acidic
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when food enters the stomach, what does it prompt it to make?
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hormone gastrin
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what does gastrin do?
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activates the gland to secrete hydrochloric acid
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what does hydrochloric acid do and what triggers it
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gastrin
it activates pepsinogen to become pepsin which breaks protein into polypepetide chains |
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what od pancreatic acids do?
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in the small intestine shifts ph to basic which helps enzymes fuction
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what inrestinal enzyme turned peptides into amino acids?
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trypsin
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where are fats digested
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the small intestine
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what does bile do and where is it from
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from lliver stored in gallbladder
prepare fats for digestion |
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what actually digests fat
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lipase, fatty acids to glycerol
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what increases the surface area of intestines?
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villi
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what do villi contain that serve as entry points to the bloodstream
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capillaries
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what are capillaries>
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entry points to the bloodstream
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how does gas exchange happen
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diffusion across a membrane
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what are the last 6 inches of the intestine
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the rectum
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what does trypsin do?
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converts secondary proteins into primary form
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what does carbohydrase do?
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eenzyme works on sucrose
llactose maltose |
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what does the inside of your lg intestine look like?
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villi
with micro villi |
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what enters the lymph system>
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fatty acids
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what are feces part of
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digestion
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secritn
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made in duodenum
secreted by small iintestine initiates release of sodium bbicarbonate which neutralizes stomach acids |
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comapre fish to human urine
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fish do not make uurea fish release waste all amonnia
kidneys in saltwater fish make super concentrated urine and fresh water kidneys make diluted uurine excretion thru gills of co2 |
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what is urea?
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converted ammonia cause we can't flush it out.
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uric acid
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used by dry place animals as crystal with very little water lost.
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aminote egg
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laid in protein sshell organism alive inside converts ammonia to uric acid
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kidneys control
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h2o
salt ccontent urea removal |
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what is uric acid more complex than
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urea
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where does baby's urine go?
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into mother's blood stream and she filters it
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what is the cortex of the kidney
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the outer most layer
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what is the medula of the kidney
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middle
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what is the center of the kidney
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the pelvis
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what artery leads to the kidney
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the renal
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where does the renal artery lead to
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the glomerulus
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what is the glomerulus
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a series of capillaries that are so thin that blood cells move in single file
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how deoes the urine leave the kidney
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thru the ureter to the urinary bladder
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where does the urine leave your body
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thru the urethra
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what is a nepheron and what it's 3 functions
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compact excretory tubes
filtration reabsorbtion secretion |
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what is the cap of the nepheron
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glomerular capsule/aka bow mans cap
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what enters the kidneys and nepheron
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blood to be filtered
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what parts of the blood are retained by the glomerulus
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blood cells and blood proteins
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fluid is forced from where to where in the nepheron
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the glomerulus to the ccapsule cells and protein are held in the G
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what is the liquid that moves to the capsule
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filtrate
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what is the filtrate
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plasma
nitrogen waste urea salt ions glucose amino acids |
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after capsule then the filtrate moves where and what happens
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proxymal tube
reabsobtion and secretion water, glucose, salt go back into the blood water thru diffusion and salt thru active trans amino acids and urea are also active iin some salt out |
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where and what goes into the _____after the filtrate is determined and passes thru the proximal tube
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water and ions go into the loop of henly which goes into the medula then back into the cortex
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the deeper ou get in the kidney th e_________it gets
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saltier
sets up gradient |
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longer the loop of henly the:
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more concentrated urine and the more water is reabsorbed into body
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what is the last salt contril and adjusts ph and moves H ions out
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the distall
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a hormane from _____gland called______does this_______.
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pituitary
ADH WHEN IT IS RELEASED the body (when body dehydrated) opens pores body conserves water. shuts off when body has enough liquid-closes press and liquid moves thru |
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when is adh released
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WHEN DEHYDRATED
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frogs have a _______respiratory system which means_______
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positive
works-inhale into out, whith glottis loosed, fill pouch, close nares, constrict pouch, open glglottis to have air leave-close nares, bulge pouch, make vacuum, air in mouth, close glottis, and open nares |
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humans have ______respiratory system which works____
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negative
intercostals push ribs up and the diaphragm moves down volume up, pressure outside of lungs goes down, gradient, more pressure in lungs, expand, air in. oout relax diaphragm, relax pleur cav. increASE out of lung pressure, reverse gradient |
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plural cavity
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chest cavity
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the shorter your trachea (vocal chords) the_______
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lower
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thrachea
2 parts |
vocal chords and then
tube with cartilage ringlets to keep stable, leads out of pharynx to bronchi. |
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at the bse of the )_______ are the 2 bronchae tubes
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trachea
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bronchioles branch into lungs
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alveolar cluster
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as oxygen enters the blood and the lungs, what happens to it>
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turns into liquid
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why does oxy enter blood as liquid
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to stop bubbles and blockage
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as blood moves down the gradient into the alveolar and the lubgs,
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attaches to hemoglobin which carries 4 oxy molecules
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what color is deoxygenated blood?
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dark red
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trace blood and oxy from the heart and back
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deoxygenated blood enters the right auricle, to ventricle and out thru pulmonary artery into the lungs where it picks up oxy.<br />back thru pullminary VEIN into heart w/ oxyinto left auricle, down to left ventricle and out the aeorta which sends blood back into the body
Right ventricle lungs left atrium left ventral |
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when oxygen attaches to hemoglobin it makes'''
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oxyhemoglobin
whic makes rusy |
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where is some oxygen stored
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myoglobin
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to get co2 out it needs to be in
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lungs
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to get co2 in lungs we
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get it into blood, combines with water
co2+h2o=H2co3.dissociates into...>>>>H+ and HCO- |
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what is H2 co3
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carbonic acid
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when co2 is in your luings
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gradient set up, concentrate > in lungs, wants to get out
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what does co2 in the blood do positive
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ph buffer,
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what does co2 in the blood do positive
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ph buffer,
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how does co2 act in blood
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makes it acidic initially (enters as H+
+HCO3-) but when the body uses H, replaced by K which makes the blood basic, can change it either way. |
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how does co2 act in blood
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makes it acidic initially (enters as H+
+HCO3-) but when the body uses H, replaced by K which makes the blood basic, can change it either way. |
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what does co2 in the blood do positive
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ph buffer,
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what other functions do lungs have
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none
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what other functions do lungs have
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none
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how does co2 act in blood
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makes it acidic initially (enters as H+
+HCO3-) but when the body uses H, replaced by K which makes the blood basic, can change it either way. |
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systolic pressure
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when heart beating
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what other functions do lungs have
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none
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systolic pressure
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when heart beating
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diasystilic pressure
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when heart resting
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systolic pressure
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when heart beating
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diasystilic pressure
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when heart resting
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where do arteries carry blood
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away from the heart
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where do arteries carry blood
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away from the heart
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diasystilic pressure
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when heart resting
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wha tis the blood pressure of 18 yr male
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120
------- 70 |
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wha tis the blood pressure of 18 yr male
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120
------- 70 |
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where do arteries carry blood
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away from the heart
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blood pressure is ___over_____
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sysatalic
diasystalic |
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wha tis the blood pressure of 18 yr male
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120
------- 70 |
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blood pressure is ___over_____
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sysatalic
diasystalic |
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why do arteries have muscle outside
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to adapt to the varying pressures
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blood pressure is ___over_____
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sysatalic
diasystalic |
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why do arteries have muscle outside
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to adapt to the varying pressures
|
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where is blood pressure highest
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arteries
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where is blood pressure highest
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arteries
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why do arteries have muscle outside
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to adapt to the varying pressures
|
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where is blood pressure highest
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arteries
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why does blood pressure change
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foight or fflight adrenaline contracts arteries, cuts off blodd fow to abdomen and pushes blood faster to places needed
|
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what 3 factors contribute to blood pressure
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genetics, culture
environment |
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what is blood made of
|
plasma, erythrocytes
luekocytes nuetrophils platelets |
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what is plasma
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liquid portion of blblood yellow
ion, protein, platelets |
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erythrocytes
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red blood cells
carry oxygen |
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laukocytes
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white blood ccells immune
|
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nuetrophils
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kind of lleukocyte move thru membranes gobble bad guys
|
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platelets
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when oxy present,
clot blood, made of protein |
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where is blood made
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in the bone marrow
|
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what part of the brain intinates the heart
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the medula oblongata and the ppons which control autonomic functions
|
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what does the pace maker do
|
sends out an electro signalchem
to start it, regulate the beats |
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where does the pacemaker send the signal
what happens when is does |
across the atrium
does atrium contracts and pushes blood down |
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where is the atrium
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the top of the heart
|
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what is the auricle
|
the connecting pouch between the atrium and the ventricle
|
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what is the av node
|
it delays the reaction of the ventricle from the atria, so that the atria can push blood into the ventricle before it contracts
|
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what does the venrticle do
|
it pushes blood up and out after being delayed by the av node.
|
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the aorta
|
lets blood out to the rest of the body, connected to the left ventricle
|
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1st lug sound
|
valves closing between the atrium and the ventricle
|
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2nd dub sound
|
aorta and pulmonary valves closing
|
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what is pulse
|
vlves cloing
|
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hypertension
|
high blood pressure
|
|
mio car dial infraction
|
heart attack
death of coronary atery |
|
fibrolation
|
pace maker not working
|