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damaskus [11]
1 year ago
10

Once a psychoactive drug enters the brain, it acts on one or more neurotransmitters

SAT
1 answer:
andreyandreev [35.5K]1 year ago
3 0

Psychoactive substances influence the function and interaction of one or more neurotransmitters in the brain. Depending on the type, dose, and combination of medications used as well as the individual's qualities, expectations, and environment, this can have a variety of consequences on the user's mental and physical health.

<h3>What is a psychoactive drug?</h3>

A psychoactive substance is one that modulates brain activity and has an impact on behavior, cognition, mood, or perception. Based on their results and modes of action, psychoactive substances can be divided into a variety of categories. Stimulants, depressants, opioids, hallucinogens, and cannabis are a few of the main groups.

Neurotransmitters are chemical messengers that transmit impulses between neurons (nerve cells) in the brain and other regions of the nervous system.

Psychoactive medications act on one or more neurotransmitters. The neuron sending the signal, the presynaptic neuron, releases neurotransmitters, which then bind to receptors on the postsynaptic neuron.

Depending on the type of neurotransmitter and receptor involved, this can either stimulate or inhibit the postsynaptic neuron.

Learn more about neurotransmitters at:

brainly.com/question/26387085

#SPJ4

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A single-platter disk has rotation speed 7200 rpm, number of tracks on one side of platter is 30,000, number of sectors per trac
nexus9112 [7]

Answer:

Rotation Speed = 7200 rpm

No. of tracks on one side of platter = 30000

No. of sectors per track = 600

Seek time for every 100 track traversed = 1 ms

To find:

Average Seek Time.

Average Rotational Latency.

Transfer time for a sector. Total Average time to satisfy a request.

Explanation:

a) As given, the disk head starts at track O. At this point the seek time is 0.

Seek time is time to traverse from 0 to 29999 tracks (it makes 30000)

Average Seek Time is the time taken by the head

to move from one track to another/2

29999 / 2 = 14999.5 ms

As the seek time is one ms for every hundred

tracks traversed. So the seek time for 29,999 tracks traversed is

14999.5/100 = 149.995 ms

b) The rotations per minute are 7200

1 min = 60 sec

7200 / 60 = 120 rotations / sec

Rotational delay is the inverses of this. So 1/120 = 0.00833 sec

= 0.00833 * 100

= 0.833 ms

So there is 1 rotation is at every 0.833 ms

Average Rotational latency is one half the amount of time taken by disk to make one revolution or complete 1 rotation.

So average rotational latency is: 1 / 2r

8.333/2 = 4.165 ms

c) No. of sectors per track = 600

Time for one disk rotation = 0.833 ms

So transfer time for a sector is: one disk revolution time / number of sectors

8.333 / 600 = 0.01388 ms = 13.88 μs

d) Total average time to satisfy a request is calculated as :

Average seek time + Average rotational latency + Transfer time for a sector

= 149.99 ms + 4.165 ms + 0.01388 ms

= 154.168 ms

4 0
2 years ago
The nurse is caring for children at a local hospital. Which child warrants immediate attention from the nurse
Eva8 [605]

The child which urgently warrants immediate attention from the nurse is the one with convulsion

<h3>What is child's convulsion?</h3>

Convulsion simply refers to a seizure that occurs in children aged between six months and six years

So therefore, the child which urgently warrants immediate attention from the nurse is the one with convulsion

Learn more about healthcare:

brainly.com/question/24331637

#SPJ1

8 0
2 years ago
What is the second largest factor of thirty-eight?
LiRa [457]
All the factors of 38 are 1, 2, 19, and 38.

The primes are 2 and 19.

The second largest prime factor is 2 .
6 0
2 years ago
How do women provide food for their families in nicaragua? they work at the electricity company they sell their produce at the m
Alik [6]

The way in which women provide food for their families in Nicaragua is: B. they sell their produce at the market.

<h3>What is Nicaragua?</h3>

Nicaragua is set between the Caribbean Sea and Pacific Ocean and it is considered to be the largest country in the Central American republics.

<h3>The characteristics of Nicaragua.</h3>
  • A dramatic terrain of lakes.
  • Volcanoes
  • Presence of beaches.
  • An agricultural economy.

Basically, Nicaragua is a country that is richly blessed with vast land and water resources which are mainly used for the cultivation of various agricultural products.

In Nicaragua, the women are able to provide food for their families through the sales of their agricultural produce at the market.

Read more on Nicaragua here: brainly.com/question/25965749

6 0
2 years ago
Read 2 more answers
The drivetrain engages the gears in the transmission. True False
Rainbow [258]

Answer:

A transmission is a machine in a power transmission system, which provides controlled application of the power. ... In British English, the term transmission refers to the whole drivetrain, including clutch, gearbox, prop shaft (for rear-wheel drive), differential, and final drive shafts.

Explanation:

8 0
3 years ago
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