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Receptor fits in at least three different disciplines, including:
- "Sensory receptor, in physiology, any structure which, on receiving environmental stimuli, produces an informative nerve impulse
- "Receptor (biochemistry), in biochemistry, a protein molecule that receives and responds to a neurotransmitter, or other substance
- "Immune receptor, a special case of biochemical receptor that occurs on the surface of immunocytes and binds to antigens."
Follow the link, below, to the Wikipedia Receptor disambiguation page.
Wiki User
∙ 13y ago
Wiki User
∙ 15y agoReceptors in the biological sense are protein molecules that respond to certain stimuli, typically specific chemicals.
When a receptor has its specific molecule bound it can trigger many different responses, such as the endocytosis of the surrounding molecule, release a hormone, and trigger binding to a surface.
Wiki User
∙ 10y agoThey are receptors that will stimulate the sympathetic nervous system when catecholamines like norepinephrine or epinephrine are attached to them.
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If a cell has alpha adrenergic receptors is it sensitive to norepinephrine?
If a cell has α-adrenergic receptors, it is sensitive to
What are the properties of the alpha adrenergic receptors?
The alpha adrenergic receptors are located in the effector organs of sympathetic nervous system. They are the most common type of alpha adrenergic receptor. Alpha adrenergic receptors tend to be excitatory. They have a greater affinity for nonepinephrine than epinephrine.
Does epinephrine affect the muscarinic receptors?
No. Muscarinic receptors are affected by acetylcholinergic neurotransmitters (ie. muscarine, atropine). Only the parasympathetic nervous system have muscarinic receptors. Epinephrine affects adrenergic receptors (symapthetic nervous system).
Which neurotransmitter receptor is present on the sarcolemma?
End of the muscle fiber I think it is the motor end plate
A term that means pertaining to mimicking or copying the effect of the sympathetic nervous system?
Drugs called 'sympathomimetics'. Their mechanism of action is primarily on adrenergic receptors (i.e., the receptors that normally bind adrenalin).
If a cell has alpha adrenergic receptors is it sensitive to norepinephrine?
If a cell has α-adrenergic receptors, it is sensitive to
What are the properties of the alpha adrenergic receptors?
The alpha adrenergic receptors are located in the effector organs of sympathetic nervous system. They are the most common type of alpha adrenergic receptor. Alpha adrenergic receptors tend to be excitatory. They have a greater affinity for nonepinephrine than epinephrine.
What adrenergic receptors are present on the rabbit ileum?
B2 receptors
What adrenergic receptors increase cAMP levels?
beta receptors
Do epinephrine use g-protein linked receptors?
Epinephrine or more commonly known as adrenaline bind to adrenergic receptors. These adrenergic receptors are a type of G-protein coupled receptors
How do alpha and beta receptors differ?
Affinity for different agonists, their locations throughout the body, the effects produced from their activation and supression. Presuming your talking about adrenergic receptorsAlpha adrenergic receptors & beta adrenergic receptors produce vasoconstriction and vasodilation respectively.
B adrenergic receptors are the only receptors found on the heart true or false?
False
What receptors bind norepinephrine and epinephrine?
adrenergic receptor
Are beta receptors adrenergic and do they bind to norepinephrine and epinephrine?
Cholinergic
Stimulation of alpha-adrenergic receptors results in?
constriction of the blood vessels
Neurotransmittor for the sympathetic nervous system?
The neurotransmitter for sympathetic nervous system is norepinephrine (or also called noradrenaline) that acts on adrenergic receptors of the effector organ (alpha 1, beta 1, beta 2 receptors). The adrenergic receptors are G-protein coupled.
During fight or flight reaction the sympathetic nervous system causes vasodilation in skeletal muscle but vasoconstriction in the skin It is able to achieve these opposite effects because?
the muscle arterioles have α-adrenergic receptors and the skin arterioles have β-adrenergic receptors
