Things I forget Flashcards
Mydrasis
Contraction radial muscle sympathetic
Miosis
Contraction sphincter muscle parasympathetic
sites of acetylcholine secretion
post ganglionic
preganglionic
adrenal gland
acetylcholine enzyme for synthesis
choline acetyl transferase
enzymes for synthesis of norepinephrine
tyrosine hydrolase
dopa decarboxylase
dopamine b hydroxylase
where is the locus coerulus located?
In the floor of the forth ventricle.
What does activating the alpha 2 in the locus coerulus cause?
analgesia, drowsiness and hypotension
What are the functions of the locus coerulus?
The function appears to be linked to the thalamus, reticulospinal tracs and vasomotor center
what receptors are located in the pilomotor muscle?
alpha 1
what are three ways to release reinin?
B1 receptor
macula densa
baroreceptors in the renal arteries
penis sympathetic receptro
alpha ejaculation
penis parasympathetic receptor
muscarinic erection
sweat glands receptor
alpha 1 muscarinic 3
what happens with the electrolytes when Ach binds with Nm and Nn?
Sodium in and potassium out
What happens when V2 is activated?
Activation include factor VII release from hepatocytes and release of von Willebrand factor from vascular endothelium. AVP also causes activation of liver glycogen phosphorylase with release of glucose into the circulation.
what are the second messengers?
IP3, DAG, cAMP, Calcium and cGMP
what is the Ach precursor transport blocker?
hemicholineum
What are some examples of disease where you have decreased or nonexistent Ach?
myasthenia gravis
botulism poisoning syndrome
What promotes release of Ach?
choline, black spider venom
how does atropine work?
blocking M2 receptor and decreasing the rapid efflux of potassium
Nm receptor agonist and antagonist
agonist-nicotine
antagonist- D-tubocuranine
Nn receptor agonist and antagonist
agonist-nicotine
antagonist-mecamylamine/hexamethonium
M1-M5 agonist and antagonist
agonist-bethanecol, methacholine, pilocarpine
antagonist-atropine, benztropine, ipratropium
Choline esters
Acetylcholine, methacholine, bethenechol, carbachol