Test 1 Flashcards
Atropine
ANT of ACH blocks, muscarinic (metabotropic) receptors
-Dialted pupils
-
Astrocytes (3)
structural and chemical support, regulates extracellular fluid and provides nutrients to neurons
- structure, hold neurons together, supply nutrients, regulate fluid
Neuropeptides
synthesized in soma, large protein molecule travels down axon in vesicles containing the enzyme needed to make the NP, slow process,
endorphins, opiates, and CRF
Classical NT
synthesized in the terminals of axons
Neuromodulators (3)
naturally occurring substances, not restricted to SC, diffuses through ECF
ACH (3)
First NT, memory and muscle, found in brain and PNS
Ionotropic (4)
4-5 subunits, spots for NT binding, contains ion channel, happens rapidly,
-has binding sites for hormones & NT
-
Metobotrpic (4)
1 subunit, 2nd messenger, no ion channel, happens slower
- Chain reaction, that’s why it happens slower
- 1-7 units
Steroid (2)
smaller cholesterol and targets receptors in the nucleolus
Gasses
NO and CO, not stored or released in vesicles, diffues thru cells and out of cells made
Botox
ANT of ACH stops its release from vesicle
black widow spider venmo does opposite
-comes from a toxin released by the bacteria “boncholonon”
Curaure
ANT of ACH, binds to and block nictotanic receptor site
tyrosine
Monoamines (2)
-Dopamine, Epinephrine, Norepinehprine,
all use second messenger systems, MAO and COMT break down the NT in the synaptic cleft
-made in terminal buttons
-broken down by COMPT
Phenothiazine
DA receptor blockers, direct ANT
Serotonin AG (4)
LSD (receptor), MAO inhibiter:inhibits enzyme that breaks down serotonin, SSRI’s, MDMA (reuptake backwards)
GABA AG (3)
Ethanol, diazapm, barbituates
Huntington’s
involuntary movements, depression, and mental deteriotion
caused by death of GABA neurons in the basal ganglia
- Ex: flailing arms
Glutamate
MSG
Naloxone
Direct ANT of opiate receptors
- Blocks opiate receptors to prevent drug OD
- Pushes opiates out of the way and takes over theior receptor site
Lipids
THC, CB receptor activation reduces NT release
anandamide- natural cannabis
CB1 ANT
Rimonbant-Blocks CB1 receptors and AM1172- inhibits reuptake anadmine
Nucleosides
Sugar based molecules, adenosine-inhibitory and is a neuromodulator caffine blocks the receptor
Ephedrine
planet derived drug, sympthatic activation, mimic of adrenal, used to treat asthma
sympathomimetic (4)
- drugs that mimic the effect of the Sympathetic Nervous System, they are stimulants, amphetamine and cocaine, increase NE and DA and E in the PNS
- Ex: Anphetamine, methyphidiate, Tetrahydrozline (Visine)
PNS (3)
spinal nerves, cranial nerves, and automatic nervous system
Spinal Nervous
31 pairs L and R side of the spine,
Cranial Nervous (4)
exit from the underside of the brain, does not go thru spinal cord, carry motor commands from CNS, connect directly to the ventral surface of the brain
Vagus Nerve (2)
largest, carries efferent (away from CNS) fibers of the Parasym
ANS (3)
controls activity of muscles and glands, promotes homeostasis, is involuntary
Preganglionic neurons (2)
located in cranial nerve nucleus or grey matter on the spinal cord, synapses with the postgang neurons
Postganglionic neurons
synapse directly with target organ,
sympathetic ganglion
are nodules that contain synapes between pre and post neurons
Sympathetic division (3)
energy mobilizer, origin in thoracic, short pre and long post, releases ACH in ganglion and NE in at target
Para division (3)
energy conservation, long pre and short post, releases ACH at ganglion and target
Exocytosis (2)
.is the secretion of a substance by a cell through means of vesicles
is the process by which neurotransmitters are released
ion channel
different types are arranged over the cell membrane in a non-uniform pattern
gated
Ion channels that can change their properties
Lipids (3)
Anandimide, Endocannabinoid and THC all CB1 receptor AG
Somatic Division
one neuron, no pre or post ganglionic neurons, spinal cord to target
ganglia
cluster of cell bodies
sympathic chain
line of ganglia for S
-chain of symoathetic ganglia, parallel to spinal cord
difference between S and Para (2)
S starts in middle and has sympathic chain along side the spinal cord
Para starts on top and bottom and synapses next to target organ
Parkin (2)
Tags abnormal protien to be destroyed
does not work in people with parksinson
Adrenal Gland (3)
activated by the pituray gland
releases E and NE into PNS
Hormonal part of SA
-
Sympathic activation (2)
body releases there is a stress
then releases neuronal and hormonal responses