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Olegator [25]
2 years ago
8

Which explains why the reflex reaction is important in certain situations?

Biology
2 answers:
Leviafan [203]2 years ago
8 0

Answer: The answer is D. Sending a message up the spinal cord takes time

Explanation:

A p e x

snow_tiger [21]2 years ago
5 0

Answer:

The answer is D.

Explanation:

A P E X

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The best and most correct answer among the choices provided by your question is the second choice.

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I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!
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When acetylcholinesterase outlasts the release of acetylcholine from the synaptic vesicles, the skeletal muscle __________?
IceJOKER [234]

Answer:

relaxes

Explanation:

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There are large differences in the effects that Acetylcholine triggers at different cholinergic transmission sites

Intra-arterial injection near Acetylcholine produces muscle contraction similar to that caused by motor nerve stimulation. Decreased resting potential in isolated intestinal muscle and increased frequency of spike production, accompanied by increased tension. In the cardiac conduction system, nodes S-A and A-V, it produces inhibition and hyperpolarization of the fiber membrane; and pronounced decrease in depolarization speed. Central regulation of extrapyramidal motor function. Exciting effect of the basal ganglia that counteracts the inhibitory action of Dopamine. Although cholinergic innervation of blood vessels is limited, cholinergic muscarinic receptors occur in sympathetic vasoconstrictor nerves. The vasodilator effect on isolated blood vessels requires the presence of an intact endothelium. The activation of muscarinic receptors causes the release of a vasodilator substance - <u>relaxing factor derived from the endothelium - that diffuses to the smooth muscle producing </u><u>relaxation</u><u>.</u>

4 0
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stepan [7]

Answer:

Please see below  

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  1. observation
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The answer is R. The structure of singulair (montelukast), a medication used to manage asthma, the absolute absolute configuration of the chirality center is r and not s. Montelukast is aeukotriene receptor antagonist used to relieve symptoms of seasonal allergies.and used <span>for the maintenance treatment of asthma.</span>
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