How does myelin increase the speed of the action potential?

Answers

Answer 1

It insulates the axon and assembles specialized molecular structure at the nodes of Ranvier. In unmyelinated axons, the action potential travels continuously along the axons.

For example, in unmyelinated C fibers that conduct pain or temperature (0.4–1.2 μm in diameter), conduction velocity along the axon is 0.5–2.0 m/s (as fast as you walk or jog).

I hope this helps have a great day :)


Related Questions

Why are some atmospheric components like Corbin dioxide methane called greenhouse gasses

Answers

Carbon dioxide molecules in the atmosphere absorb long-wavelength infrared energy (heat) from the Earth and then re-radiate it, some of it back downward. This effectively traps heat around the Earth which is called the “greenhouse effect”

Which weevil is closely related to the oak weevil

Answers

Your chair 90000 nappy

Guys should I cut my hair

Answers

Explanation:

why ?????

Answer:

for me I will say no because you will not be as fine as now and why do you want to cut your hair

PLEASE HELP ME WILL MARK BRAINLIEST LIKE GIVE ME THE REAL ANSWER
Which of the following distinguishes how options differ from futures In commodities markets?


Options are used to speculate against good pricing.


Options cannot be applied beyond a set volume of a good.


Options involve prices for goods set at the current time.


Options do not involve a requirement for a good to be purchased.

Answers

Answer:

I believe it is C I am not 100% though sorry if its wrong

Options and futures contracts are both derivatives, created mostly for hedging purposes. The key difference between them is that futures obligate each party to buy or sell, while options give the holder the right (not the obligation) to buy or sell.

Viruses can not grow in nutrient media. Why ?

Answers

Answer:

Viruses are obligate intracellular parasites and cannot grow on inanimate media. They need living cells for replication, which can be provided by inoculation in live animals among other methods used to culture viruses (cell culture or inoculation of embryonated eggs).

Viruses are obligate intracellular parasites and cannot grow on inanimate media.

I did a short sentence so you can understand!

you don need to actually chew the bread. you can just break it up into smaller pieces. which variable will you change in your investigation?​

Answers

Answer: The type of bread (independent variable)

Explanation:

You can just change the type of bread you are eating and just hold it in your mouth to test your hypothesis of not having to chew the bread. It’s the easier thing to change when making the experiment. Now your bread is your independent variable because you are not changing anything else but the type of bread. Not sure if your question is talking about the technical terms for the variable or what actual variable in the experiment, so I put down both.

What is the main difference between amphibians and arthropods?

Answers

Answer:

I do think that the main difference between amphibians and arthropods is that amphibians are vertebrates while arthropods are invertebrates

Which component of blood contains
no nucleus or organelles and carries
oxygen to body tissues?

Answers

Answer:

Red Blood Cells

Explanation:

They mainly contain hemoglobin, and no nucleus or organelles, it also carries oxygen to body tissues.

I hope you found this useful, please mark as brainliest

A DNA molecule is shaped like a _____.
A. Straight Ladder
B. Triple Helix
C. Long thin rod
D. Spiral Staircase

Answers

Answer: D. Spiral staircase

Explanation: Hope that helped you a ton.

list the levels of organization of that make up an organism, starting with an atom and ending with an organism

Answers

Answer:

The major levels of organization in the body, from the simplest to the most complex are: atoms, molecules, organelles, cells, tissues, organs, organ systems, and the human organism.

what is the chemical composition of earth's core?

Answers

Answer:  metal—specifically, iron and nickel.

Explanation: Unlike the mineral-rich crust and mantle, the core is made almost entirely of metal—specifically, iron and nickel. The shorthand used for the core's iron-nickel alloys is simply the elements' chemical symbols—NiFe.

hope this helps :)

What is the benefit of this complementary nature of DNA?
-It helps in controlling the amount of protein produced by the cells.
-It helps in storing all the information required for the cell to function efficiently.
-It helps in the synthesizing of two new identical DNA strands from each parent strand
-It helps in the unwinding of DNA allowing for the formation of chromosomes during mitosis

Answers

The complementary nature of DNA rule ensures that only some particular base pairing are allowed and the DNA strands are complementary to each other.

The benefit of this complementary nature of DNA is that it helps in the synthesizing of two new identical DNA strands from each parent strand.

In DNA replication, the complementary nature of DNA ensures that following the production of new identical DNA strands, the composition of the new strands produced is intact and identical in composition.

Learn more about the complementary nature of DNA: https://brainly.com/question/25674032

3. In 1981, a stray black cat with unusual curled-back ears was adopted by a family in California. Suppose you were the person who owned the first "curl" cat, and wanted to develop it into its own breed. How would you determine whether the allele for curled ears is dominant or recessive? Why does it make a difference for breeders whether an allele for a trait is dominant or recessive?

Answers

It is possible to determine whether the allele for curled ears is dominant or recessive by performing a test cross. It is fundamental for breeders because desired traits show differential patterns of inheritance.

In a diploid (2n) organism, a given gene locus exhibit two different variants or forms called 'alleles'.

An individual is homo-zygous when both alleles for a given gene locus are the same, while an individual is heterozygous when alleles are different.

In cases of complete dominance, the expression of the recessive allele is completely masked in heterozygous individuals.

A breeder is a professional who performs genetic crosses between different organisms in order to obtain offspring (eg., plants, animals, etc) with desired phenotypic features.

A test cross is a type of cross that breeders use to determine whether an allele is dominant or recessive (in this case, the allele for curled ears).

In a test cross, the organism that is a carrier of the unidentified allele is crossed with another organism that is believed to be homo-zygous for the recessive trait, and then the proportion of offspring is examined.

Learn more in:

https://brainly.com/question/14438101

Gaseous exchange is best described as?

Answers

Answer:

The exchange of oxygen and carbon dioxide between the alveoli and bloodstream (via passive diffusion)

Explanation:

;)

Answer: The exchange of oxygen and carbon dioxide between the alveoli and bloodstream

Explanation:

I hope this helps

What does the receptor protein do?

stops things from entering into cell

helps cell self destruct when necessary

Receives chemical signals from the brain.

helps the flow of blood

Answers

Answer:

the answer is Receives chemical signals from the brain.

Explanation:

i took the quiz have a good day

What does it mean for the brain to process information contralaterally? What about ipsilaterally? How does the corpus callosum play a role in these
processes (both contralateral and ipsilateral)? What happens when someone has a split-brain procedure?

Answers

Answer:

the answer is c I promise

Explanation:

I just took the test

Which of the following organism would you consider to be unicellular and multicellular
1) Bacteria cell
2) Bat
3) Tree
4) Frog
5)Chicken Egg
6) Baker's yeast

Answers

1 batería cell is the answer .

SCIENCE

Which seafloor feature is an example of an abyssal plain?​

Answers

Answer:

mid-ocean ridge

Ocean trenches

After scaling the mid-ocean ridge and traversing hundreds to thousands of miles of abyssal plains, you might encounter an ocean trench. The Mariana Trench, for example, is the deepest place in the ocean at 36,201 feet

Explanation:

please mark me brainliest and i think it is c

The answer is Ocean trenches

PLEASE HELP WITH THIS ONE QUESTION
What statement about the inheritance of mitochondrial DNA is true?

A) The sperm cell donates most of the material in the cytoplasm to the zygote, including mitochondrial DNA.

B) The egg and sperm cells contribute equal amounts of mitochondrial DNA to the zygote.

C) The egg cell donates most of the material in the cytoplasm to the zygote, including mitochondrial DNA.

D) The sperm cell donates most of the DNA in the nucleus to the zygote, including mitochondrial DNA.

Answers

Answer:

The answer should be C

Explanation:

The egg contributes all the cytoplasm and organelles to the zygote. The sperm only contributes one set of chromosomes.

The typical sperm midpiece contains approximately 50-75 mitochondria with one copy of mtDNA in each. This represents an 8- to 10-fold decline in copy number during spermiogenesis.

Organisms that reproduce sexually are different from organisms that
reproduce asexually in that sexually reproducing organisms have

A. a larger number of offspring

G. offspring that are nearly identical to their parent

V. more genetic variation among their offspring

E. offspring that are perfectly adapted to their parents' habitat

Answers

Answer:

I think it's V!

Explanation:

It's because they have 2 sets of genetic variations which are delivered from the (pollen in plants and sperm in animals)-while the other one is an egg which is a gamete...

"Sexually reproducing organisms make sex cells or gametes."

16. Use the graph to answer the questions.
a. What is the slope of the line?
b. What does it mean in the context of this graph?

Answers

Answer:

a) 1/2

b) It is gradually rising

Explanation:

a) To find the slope you do rise/run from the points given and in this case you go up one and over 2, therefore 1/2

what determines which individuals will survive and which will not? help me please I hate biology so much

Answers

Explanation:

pretty sure the answer is, "adaptation."

only the creatures that can adapt 2 changing environments are the ones who survive...

what organisms undergo cellular respiration

Answers

Answer:

Cellular respiration takes place in  the cells of fungi, animals, and plants.

Explanation:

Notice how these things are all living things. Cellular respiration is the process of turning glucose into ATP. This ATP is used for cellular functions and also to break down more glucose for more ATP. It is kind of like a circular process.

Hope this helps! Have a great day!

Hi !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!1

Answers

Answer:

Hiya how ya doing?? :D

Explanation:

have a miraculous day everyone!!! <3

Hello how are you doing today answer is 15

The ___ separates the heart into two parts. HELPP

Answers

Answer:

The septum

Explanation:

The septum is a thick wall of muscle that divides the heart. It separates the left and right sides of the heart.

please help me match these up click the photo to see it better

Answers

Mitosis = Division of the cell’s genetic material

Cell cycle = All the life processes of the cell, including cell division

Cancer = Disorder in which the cell cycle is disrupted, causing uncontrolled cell growth

Binary fission = Process that prokaryotic cells use to divide

Synthesis = Phase when DNA replication occurs

Checkpoint = Point in the cell cycle where the cell verifies that it is ready to go to the next phase

Endergonic (energy absorbing) reactions

a. Have more energy in the reactants than in the products

b. Have more energy in the products than in the reactants

c. Are illustrated by the breakdown of glucose (cellular respiration)

d. Can release heat as waste energy

Answers

B. Engergonic reactions absorb energy and store it in the chemical bonds formed, so the products have more free energy then the reactants.

why do the scientists feel comfortable with calling the hybrids a new species

Answers

Answer:

1 . They have the potential to interbreed in nature . 2 . They can produce viable offspring if they do interbreed—that is, their offspring are healthy enough to produce offspring of their own . and also its new,

Explanation:

describe the mechanism of blood sugar regulation (20 marks)​

Answers

[tex]Answer \: -[/tex]

Insulin helps the cells absorb glucose, reducing blood sugar and providing the cells with glucose for energy. When blood sugar levels are too low, the pancreas releases glucagon. Glucagon instructs the liver to release stored glucose, which causes blood sugar to rise.

The pancreas releases glucagon when glucose levels fall too low. Glucagon causes the liver to convert stored glycogen into glucose, which is released into the bloodstream. High BG levels stimulate the release of insulin. Insulin allows glucose to be taken up and used by insulin-dependent tissues, such as muscle cells.p

Answer:

Insulin helps the cells absorb glucose, reducing blood sugar and providing the cells with glucose for energy. When blood sugar levels are too low, the pancreas releases glucagon. Glucagon instructs the liver to release stored glucose, which causes blood sugar to rise.

The pancreas releases glucagon when glucose levels fall too low. Glucagon causes the liver to convert stored glycogen into glucose, which is released into the bloodstream. High BG levels stimulate the release of insulin. Insulin allows glucose to be taken up and used by insulin-dependent tissues, such as muscle cells.

Plants break down the food, prepared during photosynthesis, with the help of _____. (a) Oxygen (b) Carbon dioxide (c) Hydrogen (d) Nitrogen​

Answers

Answer: (a) Oxygen

Explanation: Oxygen reacts with the plants food releasing energy.

Other Questions
What did the 16th Amendment accomplish? A. It prohibited the sale of alcohol. B. It provided for the popular election of Senators. C. It established an income tax. D. It granted suffrage to women. CAN SOMEONE PLEASE HELP ME WRITE AN INTRODUCTION ??? COMMENT FOR TOPIC Can someone plz help me? :( Sometimes water scarcity is caused by human action. Describe an example of where this has occurred(Plz dont be long XD ) WILL GIVE BRAINLIEST Drag and drop the answers to the boxes to correctly complete the proof.Given: Rhombus JKMH with diagonals intersecting at point PRhombus J K M H with diagonals J M and H K intersecting at PProve: JMHKBy the definition of Response area, JKKM and by the reflexive property of congruence, KPKP . Because the diagonals of a rhombus bisect a pair of opposite angles, JKPMKP , making JKPMKP by the Response area. Because Response area, JPKMPK, and these angles are right angles because two angles that form a linear pair are congruent, thereby making JMHK by the definition of perpendicular segments.Response area means blank The answers are Congruent segments, a rhombus, a parallelogram, SSS congruence postulate, ASA congruence postulate, SAS congruence postulate, CPCTC, they are adjacent, and vertical angles are congruent Where is the option to set Conditional Formatting rules found?O Insert tab in the Formatting groupO Page Layout tab in the Styles groupO Home tab in the Styles groupFormulas tab in the Formatting group Say you were at mission control onEarth. You use radio waves to say "Hello" to anastronaut on Mars when Mars is 84,000,000km from Earth. The astronaut hears your "Hello"280 seconds after you spoke the word. How doyou explain this time lag? 1.Reasoning (at least two sentences) for Should space be colonized? You are in charge of setting up a network for a small office and ensuring its security. Describe how you will set up a small network. What factoring pattern can you use to solve x^2+14x+49=0A (ax+c)^2=0B (a*x+c)^2=0C (a*x+c)(a*x-c)=0D (ax+c)(ax-c)=c In South Africa, citizens vote for members of Parliament (the legislative branch). The members of Parliament then select one of its members tobecome president. South Africa has a(n) *1: absolute monarchy2: dictatorship.3: parliamentary democracy.4: presidential democracy. Fill with possible values to make the statement true in 2 diffrent ways:35 is _% of _ True or false: Leo's genetic predispositions to chronic diseases would be reduced if he would consume his MyPlate food pattern recommendation. -3, 9, -27, 81 find the next term Sofia, a scientist, wants to change the DNA of a sexually reproducing organism and have thenew DNA present in every cell of the organism. In order to do this after fertilization, she wouldchange the DNA in which of the following?A. ZygoteB. PlacentaC. Testes of the father D. Overuse of the mother Why should college althlet be paid ? Why was the amendment process discussed in the Constitution?OAto stop the president from making too many changes to the Constitution.to be sure that only the federal government could change the ConstitutionOC.to create a way for future generations to change the ConstitutionODto make sure that people were always making changes to the ConstitutionResetSubmit Which condition is caused by pathogens? Four students wrote down their descriptions of rotting.Nick: Rotting is a chemical change that happens to fruit like strawberries or apples. Rotting happens slower when there is more heat.Kevin: Rotting is a chemical change that happens to iron objects like nails. It causes iron objects to change color and texture.Howie: Rotting is a physical change that happens to food like fruit. Rotting happens faster with increased heat and changes a fruits color and odor.AJ: Rotting is a chemical change that affects food such as fruit. Rotting changes the fruits color and odor and happens faster with increased heat.Which student had the best description of rotting? Nick Kevin Howie AJ