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Stels [109]
3 years ago
11

How does myelination of axons in the brain regulate the timing of postsynaptic activations?

Biology
1 answer:
almond37 [142]3 years ago
3 0
The myelination of axons or the presence of the myelin sheath regulates the conduction velocity of the nerve impulses by acting as an insulator to the nerve fibers. The spaces or gaps between each myelin sheath are called the nodes of Ranvier and the impulse go from one node to another. This phenomenon is called saltatory conduction. 

Nice to know: The myelin sheath in the central nervous system is provided by cells called oligodendrocytes. On the other hand, the myelin sheath in the peripheral nervous system is provided by cells called the Schwann cells.
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Which is false about haploid and diploid cells in fungi?
g100num [7]
Fungi cells are usually diploid ..am not sure ...
6 0
3 years ago
In a population with two alleles, B and b, the allele frequency of B=0.59. What would be the frequency of the heterozygotes if t
Levart [38]

Answer:

0.483

Explanation:

The given population is in Hardy-Weinberg equilibrium. If the gene has two alleles, the sum total of the frequencies of these two alleles will be one.  

Therefore, the total of the frequency of allele B and frequency of allele b will be 1. f(B) + f(b)=1

If the frequency of allele "B" is 0.59, then the frequency of allele "b" will be=1-0.59= 0.41

The frequency of heterozygous genotype in the population= 2pq

p= frequency of the dominant allele

q= frequency of the recessive allele

So, 2pq= 2 x 0.59 x 0.41 = 0.483

6 0
3 years ago
Which kingdoms contain organisms that are multicellular?
Elza [17]

Answer:

Its B, and D

Explanation:

Bc thats what it told me the answer is after I guessed it wrong.

6 0
3 years ago
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Which is a density-independent factor?
Bogdan [553]
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4 0
3 years ago
A client in skeletal traction has a nursing diagnosis of Impaired Tissue Integrity: Related to puncture wound; pins.
VladimirAG [237]

Answer:

The client traction weights are resting on the floor.

Explanation:

The immediate action of the nurse should be to reapply the weights to give traction to the fracture. The health care provider must be notified that the weights were lying on the floor, and the client should be realigned in bed. The client's blood pressure is slightly elevated; this could be related to pain and muscle spasms resulting from lack of pressure to reduce the fracture. Oozing of clear fluid is normal, as is the capillary refill time.

DIF: Applying/Application REF: 1060 KEY: Fracture| traction

MSC: Integrated Process: Communication and Documentation

NOT: Client Needs Category: Safe and Effective Care Environment: Management of Care

5 0
3 years ago
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