Drugs<span> are chemicals that </span>affect<span> the brain by tapping into its communication system and interfering with the way neurons normally send, receive, and process information. Some </span>drugs<span>, such as marijuana and heroin, can activate neurons because their chemical structure mimics that of a natural neurotransmitter.
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None. It is illegal to dump any waste into US waters.
I think you wanted to know whether the statement in question is true or false. Based on this assumption, i am answering the question. It is a true fact that cell specialization is useful because it allows multicellular organisms to divide up work. I hope the answer has helped you.
Answer:
<u> Neuromuscular Junction -</u> It is a chemical synapse formed by the contact between a motor neuron and a muscle fiber.
<u>Function- </u>As the motor neuron are <em>able to transmit the required signals</em> to the muscle fiber, which causes the muscle contraction.
Explanation:
<u>Steps in neuromuscular transmission:</u>
- calcium entry into the presynaptic terminus.
- diffusion of Ach across cleft.
- combination of Ach with post-synaptic receptors and Ach breakdown via esterase.
- opening of Na + /K + channels (cation channels).
- postsynaptic membrane depolarization (EPP).
The process of the detection of the natural stimuli by the nervous system of a person's body is known as feature detection. The feature detection cells are the group of neurons or a single neuron that has the code for any particular significant stimuli. The feature detection cells located near the rear side of a person's brain, when damaged will disable the ability of the person to perceive movements.
Hence, the answer is 'unable to perceive movements'.