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How come the stimulation of sweat secretion is carried out by sympathetic system by MUSCARINIC RECEPTORS as said in your table eventhough they are pararsympathetic cholinergic receptors?
Wiki User
∙ 12y ago
All the post-ganglionic parasympathatic reseptors are cholinergic (muscarinic) .
and all the post-ganglionic sympaythatic reseptors are adrenergic . Except for sweat glands , Piloerecter muscles , and a few blood vessels they use sympathatic nerves but a cholinergic resepotrs .
-Note that all the pre-ganglionic ( sympathatic and para sympathatic ) reseptors are cholinergic ( Nicotinic ).
-Note that the sweat glands on the palms of the hand are adrenergic , but the rest of the sweat glands are cholinergic.
Wiki User
∙ 12y ago
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What are the two types of catecholamines?
alpha receptors make the heart beat faster, the pupils of the eyes dilate, and the muscles contract. The beta receptors have similar effects and also cause the bronchi in the lungs to open up
Atropine is which type of drug?
Atropine is generally considered to be a cholinergic muscarinic receptor antagonist.
The neurotransmitter used at cholinergic synapse is?
The neurotransmitter is called acetylcholine. Cholinergic receptors are of two kinds: nicotinic receptors, which are situated in striated muscles and muscarinic receptors, which are situated in parasympathetically innervated structures.
What are motor end plates associated with?
Motor end plates are associated with cholinergic receptors. It can be muscarinic if it is innervated by the post ganglionic parasympathetic nervous system. If under sympathetic, it will be innervated by adrenergic receptors (exception being sweat glands). For somatic nervous system it is nicotinic.
What type of Drug is mushrooms?
Mushrooms may contain cholinergic toxins like muscarine in small amounts, it is the mushrooms of the Inocybe and Clitocybe genera that contain sufficient amounts to produce a muscarinic cholinergic action. Overdose can cause cholinergic poisoning by blocking neuromuscular junctions
What neurotranmitters are released by smpathetic and parasympthetic neurons?
The 2 divisions of the autonomic nervous system (sympathetic and parasympathetic) both have 2 areas where neurotransmitter is released. ?They have ganglionic synapses in the periphery wherein neurotransmitter is released and have synapses on the target organs wherein neurotransmitter is released. ?So this means there is preganglionic and postganglionic release of neurotransmitter.Sympathetic preganglionic neurotransmitter is Acetylcholine. ?Acetylcholine affects muscarinic receptors here.Sympathetic postganglionic neurotransmitter is Norepinephrine. ?Norepinephrine affects alpha or beta receptors here. ?Parasympathetic preganglionic neurotransmitter is Acetylcholine. ? Acetylcholine affects muscarinic receptors here.Parasympathetic postganglionic neurotransmitter is Acetylcholine. ?In this case Acetylcholine affects muscarinic receptors.?Sympathetic neurons are considered to be adrenergic & sympathetic neurons are considered to be cholinergic.
Is pilocarpine an antagonist or an agonist?
Pilocarpine is actually a Muscarinic cholinergic receptor (mAChR) agonist. It works on the Parasypathetic nervous system; therefore, it makes sense that the agonist working on the PNS would result in decreased heart rate. Atropine, in contrast, is an muscarinic cholinergic receptor antagonist and will lead to increased heart rate due to the lowered effect of the parasympathetic system on the heart.
What type receptor is present in the cardiac wall and responds to stimulation by the vagus nerve?
Muscarinic Receptor
Muscarinic receptors are found on?
Organs innervated by the parasympathetic nervous system. One addition to that are sweat glands. They are innervated by sympathetic nervous system, however, they have muscarinic receptors, NOT adrenergic receptors.
Does sweat glands contain cholinergic receptors?
All the post-ganglionic parasympathatic reseptors are cholinergic (muscarinic) . and all the post-ganglionic sympaythatic reseptors are adrenergic . Except for sweat glands , Piloerecter muscles , and a few blood vessels they use sympathatic nerves but a cholinergic resepotrs . -Note that all the pre-ganglionic ( sympathatic and para sympathatic ) reseptors are cholinergic ( Nicotinic ). -Note that the sweat glands on the palms of the hand are adrenergic , but the rest of the sweat glands are cholinergic.
Stimulation of what receptors would most likely decrease glandular secretions within the GI tract?
muscarinic (M3,M4)
What are cholinergic stimulants?
they stimulate the action of ACh at post ganglionic muscarinic receptors.
