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Action Potential
Lecture 1
24
Anatomy
Graduate
09/29/2009

Additional Anatomy Flashcards

 


 

Cards

Term
Types of  classic neurotransmitters
Definition

ACH

Biogenic Amines

Amino Acids

 

Term
Types of neuroactive neurotransmitters?
Definition

Hypothalmic rleasing

Pituitary peptides

neurohyphyseal

gastrointestinal peptides

others

 

Term
Gastrointestinal peptides
Definition

Vasoactive intestinal protein

choleystokinin

gastrin

neurotensin

met enkephalin

leu enkaphlain

insulin

motilin

Term
Pituitary peptides
Definition

 

Adrebicirtucitrioubgm

b-endorphin

prolactin

thryotropin
a-melanocyte sitmulatin hormone

lutinizin

Term
Neurohyphyseal hormones
Definition
Vasopressin
oxytocin
neurophysin
Term
Hypothalmic releasing hormones
Definition
Thyrotoropin- releasing hormone
corticotripin-releasing hormone
gonadotropin-releasing hormone
somatostatin
growth hormone releasing hormone
Term
historical overview
Definition
1790 Lugi Govani - animal electricity
1849 Emil DuBois- Reymond (Nerve Conduction)
1925 Edgar Adrian (All or Nothing Principle)
1938 Kenneth Cole and Howard Curtis (ionic Fluxes)
1945 Alan Hodkins, Andrew Huxley, and Bernard Katz (Na+/K+ Pumps- sliding filament theory)
Term
resting potential
Definition
-70mv
Term
threshold
Definition
-50mv
Term
spike
Definition
+30 mV
Term
how long does whole precess of AP take?
Definition
4ms
Term
AP cycle
Definition
Proteins and other molecules are being made in soma
Transported down
Released
Broken down
Reuptaken
Transported back
Repackaged
CONSTANT CYCLE
Term
post synaptic responses
Definition
molecular response- end plate potential (EPP)

excitatory CNS response (EPSP)

inhibitory CNS response (IPSP)

neuromodulators (long term)
Term
where does EPP occur?
Definition
neuromuscular junction in PNS
Term
transmitter for EPP
Definition
aceytocholine
Term
main excitatory transmitter of EPSP
Definition
glutamate
Term
rate limiting step in IPSP
Definition
Cl- instead of Ca+
Term
primary inhibitory transmittor of IPSP
Definition
GABA
Term
model of electrical potential
Definition
external stimulus > generator potential > electrical potential > AP (if reaches threshold) >NTs/ neuromodulators > synaptic potential > electrotonic potentiel (difference bt inside and outside)
Term
monosynaptic reflex arc
Definition
sensory receptor cell > dorsal root ganglia > alpha motor neuron > muscle
Term
reciprocal inhibition
Definition
sensory receptors > dorsal root ganglia > alpha motor neuron > agonist

dorsal root ganglia > collateral branch > inhibiotry neuron > alpha motor neuron > antagonist
Term
feed back inhibition
Definition
fires briefly and then is inhibited (send inhibiotry interneuron signals back to self to inhibit)
Term
divergent
Definition
sensory
Term
convergent
Definition
motor
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