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90 Cards in this Set
- Front
- Back
What is meant by a physiological range?
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Range of values acceptable for certain chemicals to sustain life
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# What is the physiological range for blood pH? For blood Sodium ion?
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Blood: 7.35-7.45pH
Na: 135-145mEq/L |
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What is negative feedback?
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Product shuts down the reaction pathway, something makes process goes in other direction
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Why water good solvent?
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polar
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molality
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mol/kg
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Major elements of human body
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Carbon, Hydrogen, Oxygen, Sodium, Phosphorous, Sulfur
SPOCHS |
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water necessary for life
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great solvent, bio rxns take place liquid form
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inorganic ions required for life why
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because they give charges, electric potentials can be created
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hydrogen ions needed in required conc. cuz
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changes organic molecules from polar to non
effects protein conformations |
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what use hydrogen ion gradient?
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electron transport chain
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how does pH affect solubility of drug?
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can make it into ion which is polar and soluble or the other way
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three types of RNA
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mRNA, tRNA, rRNA, ncRNA 'non-coding'
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Why is calcium used for so many physiological process?
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so abundant
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why different muscle look diff?
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different purposes
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Ficks law of diffusion?
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high concentration to low concentration, speed of diffusion depends on gradient
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surface area/lipid solubility
affect lipid solubility? |
SA: more increases
lipid solubility: more increases lipid sol. affected by pH |
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osmolality of blood and extra cellular fluid (ECF)?
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275--299 mOsm/kg
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osmolality of 300 mM glucose? Of 150 mM NaCl? Of 100 mM CaCl2?
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300 for all
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thiomersal? how work
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causes enzymes be nonfunc. since Hg binds to thiol group in active site
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How polar molecules cross membrane
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transport proteins
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func. of integrin? cadherin?
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integrins: glycoprotein that attach cell to outside matrix
Cadherin: adhesion molecules, connect cell to cell |
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SGLUT? GLUT? func.
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SGLUT in intestine, symport, 1 glu. 2 Na, secondary active trans., ACTIVE
GLUT transport glucose across membrane, FACILITATED DIFFUSION |
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sodium, potassium pump func.
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create gradient, 3 Na out, 2 K in, cleaves ATP
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Receptor function
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recieve signals and perform task for signal
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Membrane transports?
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simple diffusion
facilitated diffusion--> Vmax against gradient active transport secondary active endo/exocytosis |
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glucose against gradient why?
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sodium cotrans. intestine kidney
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nucleus func?
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holds genetic info
rRNA, mRNA formed |
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ribosome
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organelles that perform protein syn.
bound on ER (rough) for secretion |
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glycosylation occurs?
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mostly rough ER, not really anywhere else
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what happens in mito. why inner out mems.
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Krebs, electron transport chain, cuz
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lysosome?
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disgests shit, acidic internal environment, storage
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peroxisome
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off ER w/ enyzmes that degrades fatties and other shit and makes H2O2
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proteasome
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large protein complex that kill other proteins by proteolysis
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dinitrophenol does
azide |
decreases proton gradient
metabolic poison that binds irreveriblly to heme cofactor (bad for repiratory) |
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transcription factor?
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it makes RNA
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rough ER makes what
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secreted and membrane proteins
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golgi does?
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glycosilation, phosphorlation, and forms secretory vesicles
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dyneins and kinesins
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intracellur transport
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4 basic tissue types?
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Connective
Epithelial Muscle Nervous |
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Cell membrane important cuz?
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gradients
semipermeable |
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protein gylcosylation occurs where?
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Rough ER
Golgi |
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2nd ary messenger is?
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causes cascade of events, like cAMP and GDP,
inducer never enters cell |
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Different methods of transport are?
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Diffusion
Facilitated Active Secondary active |
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Symport
Antiport |
same
opposite |
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Receptor mediated endocytosis works how?
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i dont want to tell you
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Henderson Hasselbach is?
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pH= pKa + log -A/HA
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Cytoskeleton fibers are?
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microfiliments-->actin
intermediate filaments-->keritin microtubules-->tubulin (flagella) motile |
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Which cytoskeletal filaments are associated with the centrioles?
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microtubules, important for cell division
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Basic features of connective tissue
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connects shit?
anchor structure strength communication nutrition lotta matrix |
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fibroblasts produce?
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collagen
elastic fibers reticular fibers |
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loose connective tissue contains what cells?
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fibroblasts
macrophages mast cells |
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what makes cartilage?
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chondrocytes
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what makes bone?
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osteoblasts and cytes
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connective tissue that covers bone? cartilage?
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periosteum
perichondrium |
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adipocyte?
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connective tissue
lots of lipid storage, irregular shape |
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epithelial tissue?
top is called? bottom is called? |
rapid regen/ growth
top-->apical bottom-->basal connected to basement basement membrane--> secreted by cells |
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types of epithelial tissue?
ex of each |
simple squamous
strat. squamous cuboidal columnar |
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Desmosome do and have?
adherens junctions |
intermediate filament
connect cells |
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Desmosomes have
hemidesmosomes different how? Adherins junction? |
cadherins
hemi: anchor to basement, use integrins adherins: use cadherins and integrins link actin filments between cells |
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tight junctions use?
gap junctions? |
occludin and claudin
gap: connexin --> let communicate |
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body membranes are?
where is each? parietal vs. visceral |
cutaneous
mucous serous synovial p vs. v -->p lines cavity wall v covers organs |
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Epidermis is what type of tissue?
how about dermis layers? |
stratified squamous
dermis--> papillary is losse connective reticular is dense irregular connective |
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4 layers of epidermis? sometimes 5
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Basal
Spinosum Granulosum Lucidium(only in thick) Corneum |
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dermis function?
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structural support
vascularization of area |
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Keratinocytes do? and where
melanocytes? langerhans? merkels? |
produce keratin (produced at basal layer)
M: make melanin, color L: phagocytes M:sensory receptors |
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what proteins form dermis?
what makes them? |
collagen, elastin, reticular
made by fibroblasts |
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mast cells? why important
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immflammitory effects
release histamine, heparin |
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sudoriferous gland?
arrector pilli muscle |
sweat gland, temp reg.
muscle that gives you goose bumps (attached to hair follicles) |
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sensory receptors in skin?
what they do? |
merkel
meissners pacinian ruffinis end organs free nerve endings afferent |
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Osteoblast
Osteocyte Osteoclast |
make bone
mature bone cell, sits there in lacunae bone absorption, group of macrophages fused |
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Canaliculi
central canal osteon osteoid |
canals
big canal contains canal and shit protein mixture secreted by blasts, mostly collogen |
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periostuim
endostium hydroxyapatite osteoprotegrin |
connective tissue around bone
connective tissue inside bone what makes bone hard stops osteoclast formation from macs (stimulated by estrogen) |
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RANK
RANKL produced where? |
RANK is cytosine receptor osteoclasts (monocytes)
RANKL is protein that binds to it and stim. osteoclast formation |
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Bone fluid is?
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Collagen, Ca binding proteins, proteogylcans, hydroxyapatate
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What has highest free [Ca++]?
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Blood Plasma
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Physiological effects of PTH?
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released when low Ca in blood,
Bone-decrease blast, inc clast Kidney- Ca retension, PO4 excretion Overall- inc Ca, Decr PO4 |
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Physiological effects of calitriol?
Physiological effects of calcitonin? \Physiological effects of PTH? |
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Which hormone increases calcitriol?
which hormone uses G proteins? which hormone acts as DNA binding receptor? |
PTH and hypophosphitimea
G: PTH, calctonin DNA: calcatriol |
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Which hormone decreases phosphate levels?
What cell does calcitonin act on mainly? |
PTH and calcitonin
acts on osteoclasts |
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Effects of glucocorticoids
what do bisphosphates do? |
cortisol-->cause bone lose
stim. absorb inhibit syn. inhibit Ca. reaborb in kidney destroy osteoclasts |
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Muscle types, what diff?
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Skeletal-->bone, multinuke, striated, voluntary/invol
Smooth-->walls of hollow organs, skin, BV, eyes, glands, one nuke, involuntary Cardiac-->heart, single nuke, striated, involuntary, intercalated disks |
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resting membrane potential
threshold potential |
-70mV or -50--90
-50mV |
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thick
thin filaments made of protein spans entire sarcomere |
myosin
tropomyosin, troponin, actin titin |
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how action potenial take place
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Where does the myofiber action potential begin?
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at neuromuscular junction
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Movement of which ion is mainly responsible for the resting membrane potential?
Movement of what ion causes the depolarization phase of the action potential? repolarization phase of the action potential? |
K
Na K |
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what does calcium bind to
what does myosin bind to? |
troponin
actin |
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cholinergic agonists do?
antagonists? curare? neostigmine? |
contract
prevent contractions C: compeditive inhibitor Neo: inhibits AcH breakdown |
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botox does?
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blocks release of AcH at neuromuscluar junction
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Myasthenis gravis
muscular dystrophy |
autoimmune disorder caused by antibodies that block AcH receptors, treat with cholenesterase inhibitor
X linked genetic disease, degeneration of muscle, Duchenne most common, cuz dystrophin not allow actin bind extracellularness |