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ratelena [41]
3 years ago
15

Name and describe the key components of the two major divisions of the nervous system.

Biology
1 answer:
defon3 years ago
3 0

The Central Nervous System

     -Serves as the control center for the body

The Peripheral Nervous System

     -Sends information to and from the brain and spinal cord

     -Divided into the sensory somatic nervous system and the autonomic nervous<span> <span>system</span></span>

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4 0
2 years ago
An inhibitory stimulus has occurred. B. Chemically gated potassium channels have opened. C. Excessive potassium has diffused out
andrezito [222]

Given question is incomplete. Complete question has been attached.

Answer:

C. Excessive potassium has diffused out causing hyperpolarization.

Explanation:

The nerve action potential can be divided into following stages:

  • Stimulus is detected by the cell in resting stage.
  • Sodium channels in the membrane open from where influx of sodium ions occur which is called depolarization
  • After a while, sodium channels close and potassium channels open from where efflux of potassium ions occur which is called repolarization.
  • The membrane potential further lowers due to continous efflux of potassium ions which is called hyperpolarization.
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In the given figure, stage 4 depicts hyperpolarization because the membrane potential has dropped to the lowest point below -70mV. Hence, option C is correct.

7 0
3 years ago
Which term refers to the study of how an organ functions?
vaieri [72.5K]

[ Answer ]


Physiology


[ Explanation ]


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