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Mariana [72]
3 years ago
5

In North America, the demand for amphetamine (especially methamphetamine) has been _____.

Medicine
1 answer:
Vlad [161]3 years ago
3 0
In North America, the demand for ampetamine (especially methamphetamine) has been stable
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Well trained athletes have sometimes a higher cardiac output than non-athletes. What is the reason for that?
Whitepunk [10]

Answer:

The training regimens of these athletes are, however, not uniform. Power training can indeed be static but is sometimes described as dynamic involving ... distance runners have a larger left ventricular mass than non-athletic control subjects, ... form of strength training, heart rate, cardiac output, and blood pressure increase.

Explanation:

4 0
3 years ago
Norepinephrine acts on the heart by _________
Westkost [7]

Answer:

The correct option is : a. causing threshold to be reached more quickly      

Explanation:

Norepinephrine, also known as noradrenalin, is an organic compound, which belongs to the catecholamine family. It acts as a hormone and a neurotransmitter in the brain and the body and also impacts the heart.

It is one of the hormones secreted by the adrenal medulla. Norepinephrine is a part of the fight-or-flight mechanism of the body. It acts by binding to the β-1 receptors and opens the chemical or ligand gated calcium and sodium ion channels. Therefore, <u>it causes the threshold to be reached faster </u>by increasing the rate of depolarization and thus causes heart arrhythmia.

Therefore, <u>Norepinephrine acts on the heart by </u><u>causing threshold to be reached faster.</u>

6 0
3 years ago
A group of related organs that have a common function is called a(n)
Free_Kalibri [48]

Answer:

B. system

Explanation:

An example of a system would be the circulatory system helps circulate blood carrying nutrients to organs and waste material away from organs. It includes the organs - heart, blood vessels and lungs.

8 0
3 years ago
Select the correct answer.
Stolb23 [73]

Answer:

it's C (ultrasound)

Explanation:

it's not cochlear implant because cochlear is for your ears

it's not laser light because laser light surgery is used to repair skin

brachytherapy is used for cancer treatment (usually prostate)

electrical impedance tomography is used to form a tomographic image

ultrasound therapy is used to reduce swelling

so it's ultrasound (C)

4 0
3 years ago
Who performed the first successful split brain surgery to prevent the spread of seizures in the brain?
kompoz [17]

Answer:

Michael Gazzaniga and Roger W. Sperry

Explanation:

Split-brain also known as callosal syndrome was considered successful after it had passed three types of tests to analyze the range of cognitive capabilities of the split-brain subjects. The first was the visual stimulation ability test, the second test was a tactile stimulation situation and the third tested the auditory abilities of the patient.

6 0
3 years ago
Read 2 more answers
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