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What is meant by a physiological range?
Range of values acceptable for certain chemicals to sustain life
# What is the physiological range for blood pH? For blood Sodium ion?
Blood: 7.35-7.45pH
Na: 135-145mEq/L
What is negative feedback?
Product shuts down the reaction pathway, something makes process goes in other direction
Why water good solvent?
polar
molality
mol/kg
Major elements of human body
Carbon, Hydrogen, Oxygen, Sodium, Phosphorous, Sulfur
SPOCHS
water necessary for life
great solvent, bio rxns take place liquid form
inorganic ions required for life why
because they give charges, electric potentials can be created
hydrogen ions needed in required conc. cuz
changes organic molecules from polar to non
effects protein conformations
what use hydrogen ion gradient?
electron transport chain
how does pH affect solubility of drug?
can make it into ion which is polar and soluble or the other way
three types of RNA
mRNA, tRNA, rRNA, ncRNA 'non-coding'
Why is calcium used for so many physiological process?
so abundant
why different muscle look diff?
different purposes
Ficks law of diffusion?
high concentration to low concentration, speed of diffusion depends on gradient
surface area/lipid solubility
affect lipid solubility?
SA: more increases
lipid solubility: more increases
lipid sol. affected by pH
osmolality of blood and extra cellular fluid (ECF)?
275--299 mOsm/kg
osmolality of 300 mM glucose? Of 150 mM NaCl? Of 100 mM CaCl2?
300 for all
thiomersal? how work
causes enzymes be nonfunc. since Hg binds to thiol group in active site
How polar molecules cross membrane
transport proteins
func. of integrin? cadherin?
integrins: glycoprotein that attach cell to outside matrix
Cadherin: adhesion molecules, connect cell to cell
SGLUT? GLUT? func.
SGLUT in intestine, symport, 1 glu. 2 Na, secondary active trans., ACTIVE
GLUT transport glucose across membrane, FACILITATED DIFFUSION
sodium, potassium pump func.
create gradient, 3 Na out, 2 K in, cleaves ATP
Receptor function
recieve signals and perform task for signal
Membrane transports?
simple diffusion
facilitated diffusion--> Vmax

against gradient
active transport
secondary active
endo/exocytosis
glucose against gradient why?
sodium cotrans. intestine kidney
nucleus func?
holds genetic info
rRNA, mRNA formed
ribosome
organelles that perform protein syn.
bound on ER (rough) for secretion
glycosylation occurs?
mostly rough ER, not really anywhere else
what happens in mito. why inner out mems.
Krebs, electron transport chain, cuz
lysosome?
disgests shit, acidic internal environment, storage
peroxisome
off ER w/ enyzmes that degrades fatties and other shit and makes H2O2
proteasome
large protein complex that kill other proteins by proteolysis
dinitrophenol does
azide
decreases proton gradient

metabolic poison that binds irreveriblly to heme cofactor (bad for repiratory)
transcription factor?
it makes RNA
rough ER makes what
secreted and membrane proteins
golgi does?
glycosilation, phosphorlation, and forms secretory vesicles
dyneins and kinesins
intracellur transport
4 basic tissue types?
Connective
Epithelial
Muscle
Nervous
Cell membrane important cuz?
gradients
semipermeable
protein gylcosylation occurs where?
Rough ER
Golgi
2nd ary messenger is?
causes cascade of events, like cAMP and GDP,
inducer never enters cell
Different methods of transport are?
Diffusion
Facilitated
Active
Secondary active
Symport
Antiport
same
opposite
Receptor mediated endocytosis works how?
i dont want to tell you
Henderson Hasselbach is?
pH= pKa + log -A/HA
Cytoskeleton fibers are?
microfiliments-->actin
intermediate filaments-->keritin
microtubules-->tubulin (flagella) motile
Which cytoskeletal filaments are associated with the centrioles?
microtubules, important for cell division
Basic features of connective tissue
connects shit?
anchor
structure strength
communication
nutrition
lotta matrix
fibroblasts produce?
collagen
elastic fibers
reticular fibers
loose connective tissue contains what cells?
fibroblasts
macrophages
mast cells
what makes cartilage?
chondrocytes
what makes bone?
osteoblasts and cytes
connective tissue that covers bone? cartilage?
periosteum
perichondrium
adipocyte?
connective tissue
lots of lipid storage, irregular shape
epithelial tissue?
top is called?
bottom is called?
rapid regen/ growth
top-->apical
bottom-->basal connected to basement
basement membrane--> secreted by cells
types of epithelial tissue?
ex of each
simple squamous
strat. squamous
cuboidal
columnar
Desmosome do and have?
adherens junctions
intermediate filament
connect cells
Desmosomes have
hemidesmosomes different how?
Adherins junction?
cadherins
hemi: anchor to basement, use integrins
adherins: use cadherins and integrins link actin filments between cells
tight junctions use?
gap junctions?
occludin and claudin
gap: connexin --> let communicate
body membranes are?
where is each?
parietal vs. visceral
cutaneous
mucous
serous
synovial
p vs. v -->p lines cavity wall
v covers organs
Epidermis is what type of tissue?
how about dermis layers?
stratified squamous
dermis--> papillary is losse connective
reticular is dense irregular connective
4 layers of epidermis? sometimes 5
Basal
Spinosum
Granulosum
Lucidium(only in thick)
Corneum
dermis function?
structural support
vascularization of area
Keratinocytes do? and where
melanocytes?
langerhans?
merkels?
produce keratin (produced at basal layer)
M: make melanin, color
L: phagocytes
M:sensory receptors
what proteins form dermis?
what makes them?
collagen, elastin, reticular
made by fibroblasts
mast cells? why important
immflammitory effects
release histamine, heparin
sudoriferous gland?
arrector pilli muscle
sweat gland, temp reg.
muscle that gives you goose bumps (attached to hair follicles)
sensory receptors in skin?
what they do?
merkel
meissners
pacinian
ruffinis end organs
free nerve endings
afferent
Osteoblast
Osteocyte
Osteoclast
make bone
mature bone cell, sits there in lacunae
bone absorption, group of macrophages fused
Canaliculi
central canal
osteon
osteoid
canals
big canal
contains canal and shit
protein mixture secreted by blasts, mostly collogen
periostuim
endostium
hydroxyapatite
osteoprotegrin
connective tissue around bone
connective tissue inside bone
what makes bone hard
stops osteoclast formation from macs (stimulated by estrogen)
RANK
RANKL
produced where?
RANK is cytosine receptor osteoclasts (monocytes)
RANKL is protein that binds to it and stim. osteoclast formation
Bone fluid is?
Collagen, Ca binding proteins, proteogylcans, hydroxyapatate
What has highest free [Ca++]?
Blood Plasma
Physiological effects of PTH?
released when low Ca in blood,
Bone-decrease blast, inc clast
Kidney- Ca retension, PO4 excretion
Overall- inc Ca, Decr PO4
Physiological effects of calitriol?
Physiological effects of calcitonin?
\Physiological effects of PTH?
Which hormone increases calcitriol?
which hormone uses G proteins?
which hormone acts as DNA binding receptor?
PTH and hypophosphitimea
G: PTH, calctonin
DNA: calcatriol
Which hormone decreases phosphate levels?
What cell does calcitonin act on mainly?
PTH and calcitonin

acts on osteoclasts
Effects of glucocorticoids

what do bisphosphates do?
cortisol-->cause bone lose
stim. absorb
inhibit syn.
inhibit Ca. reaborb in kidney

destroy osteoclasts
Muscle types, what diff?
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
resting membrane potential
threshold potential
-70mV or -50--90
-50mV
thick
thin filaments made of

protein spans entire sarcomere
myosin

tropomyosin, troponin, actin

titin
how action potenial take place
 Where does the myofiber action potential begin?
at neuromuscular junction
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
what does calcium bind to
what does myosin bind to?
troponin

actin
cholinergic agonists do?
antagonists?
curare?
neostigmine?
contract
prevent contractions
C: compeditive inhibitor
Neo: inhibits AcH breakdown
botox does?
blocks release of AcH at neuromuscluar junction
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