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1) nicotinic acetyle choline receptors are ligand gated ion channels, where as mucarinic Ach receptors are G-proteins coupled receptors system.
2) nicotine is a agonist/ muscarine( a toxin produced by certain mushrooms) is a agonist.
3) action of nicotine is fast(1-2msec)/action of muscarinic is slow (100-250msec).
4) in case of nicotinic ach receptor, subtypes based on different subunit composition.muscle and neuronal classification/in case of muscarinic receptor at least 5 receptors subtype have been described by molecular cloning.
5) in case of nicotinic receptor agonist effects blocked by tubocuranine/in case of muscarinic receptor agonist effects blocked by atropine.
6) nicotinic receptor found at neuro muscular junction of skeletal muscle, on the post ganglion neurons of the parasympathetic nervous system and on many neurons on the brain(hypothalamus)/muscarinc receptor found at neuromuscular junction of cardiac and smooth muscle as well as on glands and on the post ganglionic neurons of the sympathetic nervous system.
What else can I help you with?
What is ACh receptors?
ACH receptors can be defined as an integral membrane protein that responds to the binding of acetylcholine, a neuoyansmitter. Two example are nicotinic acetyl line receptors and muscarinic acetylcholine receptors. .
Why acetylecholene bind with both nicotenic and muscuranic receptor?
Acetylcholine (ACh) binds to both nicotinic and muscarinic receptors because these receptors belong to different families and serve different functions in the body. Nicotinic receptors are ionotropic and primarily mediate fast synaptic transmission in the peripheral and central nervous systems, while muscarinic receptors are metabotropic and involved in slower, longer-lasting responses such as modulation of heart rate and glandular secretions. The structural differences between these receptor types allow ACh to interact with them in distinct ways, facilitating diverse physiological effects. This versatility enables ACh to play a crucial role in various autonomic and central nervous system functions.
What neurotransmitter is found at the synapse between nerves and human skeletal muscle cells?
Acetylcholine is the neurotransmitter at the neuromuscular junction.
Why does atropine effect histamine receptors?
It doesn't atropine only acts on muscarinic receptors (it's a competitive antagonist here for ACh), but histamine acts on different receptors (histamine receptors). There is no direct interaction between atropine and histamine receptors
What receptors are present in frog's rectus abdominus muscle?
Nicotinic receptors are commonly present in the neuromuscular junction (neuromuscular endplate). They respond to acetylcholine released from the terminals of motor neurons by opening to allow deploarizing K+ flow.
What is the difference between Ipratropium Bromide and Albuterol?
Ipratropium bromide is an anticholinergic bronchodilator that works by blocking muscarinic receptors in the airways, leading to bronchodilation. Albuterol is a beta-agonist bronchodilator that works by stimulating beta-2 adrenergic receptors to relax the smooth muscles in the airways. Both medications are often used to treat respiratory conditions like asthma and COPD, but they have different mechanisms of action.
What is the difference between an excitatory synapse and an inhibitory synapse?
Synapses are junctions that allow a neuron to electrically or chemically transmit a signal to another cell. Synapses can either be excitatory or inhibitory. Inhibitory synapses decrease the likelihood of the firing action potential of a cell while excitatory synapses increase its likelihood. Excitatory synapses cause a positive action potential in neurons and cells. For example, in the neurotransmitter Acetylcholine (Ach), its binding to receptors opens up sodium channels and allows an influx of Na+ ions and reduces membrane potential which is referred to as Excitatory Postsynaptic potential(EPSP). An action potential is generated when the polarization of the postsynaptic membrane reaches threshold. ACh acts on nicotinic receptors which can be found at the neuromuscular junction of skeletal muscles, the parasympathetic nervous system, and the brain. It also acts on muscarinic receptors found at neuromuscular junctions of the smooth muscles, glands, and the sympathetic nervous system. Inhibitory synapses, on the other hand, cause the neurotransmitters in the postsynaptic membrane to depolarize. An example is the neurotransmitter Gamma Aminobutyric Acid (GABA). The binding of GABA to receptors increases the flow of chloride (CI-) ions in the postsynaptic cells raising its membrane potential and inhibiting it. The binding of GABA to receptors activates a second messenger opening potassium channels.
What is the difference between beta1 and beta2?
Beta1 and beta2 are different types of adrenergic receptors found in the body. Beta1 receptors are primarily located in the heart and play a role in regulating heart rate and contractility. Beta2 receptors are found in the lungs, blood vessels, and other tissues, and are involved in processes such as smooth muscle relaxation and bronchodilation.
What is the relationship between olfactory and gustatory receptors?
Gustatory receptors are part of the sense of taste. They are in your mouth. Olfactory receptors are part of the sense of smell. They are in your nose.
What the similarities between enzymes and receptors?
They both have ligands.
What are the connections between the receptors in the skin and the CNS?
not a clue
What is the connection between the receptors in the skin and the CNS?
i duunno
