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160 Cards in this Set

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