saliva biology Flashcards
what are the constitutes of saliva
water
electrolytes
organic components
when an acing cell is activated what mineral is pushed into secretion via conc gradient
K+
what is activated when K+ is pushed into secretion when an acing cell is active
Na+ K+ Cl- Co transporter
what does activation of Na+ K+ Cl- Co transporter result in
increase in Na+
when is there more Na+ in saliva
when flow rate is higher
when is there more HCO3- in saliva
when flow rate is higher
what cell secretes most of the organic components
acinar cells
what is sympathetic control
fight or flight
coorindates bodys réponse to stress
what is parasympathetic control
rest and digest
coordinates the body basic homeostatic function
what is a ganglion
a collection of nerve bodies in the periphery
what are the 2 types of neuron found in a peripheral chain
pre and post ganglion
what is the effect of parasympathetic control
increased secretion
vasodilation
what is the effect of sympathetic control
increased secretion
vasoconstriction
what glands does the glossopharyngeal nerve carry parasympathetic axons to
lingual and parotid
what glands does the facial nerve carry parasympathetic axons to
sublingual, submandibular and palatal
where do parasympathetics to the lingual gland synapse
remaks
where do parasympathetics to the parotid gland synapse
otic
where do parasympathetics to the sublingual gland synapse
submandibular
where do parasympathetics to the submandibular gland synapse
submandibular
where do parasympathetics to the palatal gland synapse
pterygopalatine
what is the post ganglionic transmitter in parasympathetic control
ACh, acetylcholine
what is the ganglionic transmitter in sympathetic control
ACh, acetylcholine
does sympathetic control have a long or short pre and post ganglionic axon
short preganglionic
long postganglionic
what is the target tissue for sympathetic control in salivary control
noradrenaline
