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Leto [7]
4 years ago
7

Myelin reduces membrane capacitance by increasing the thickness of the membrane and thus increasing the separation of cations an

d anions.
a. True
b. False
Medicine
1 answer:
MA_775_DIABLO [31]4 years ago
4 0

Answer: TRUE

Explanation: Myelin is a thick layer of lipoproteins that "wraps" the axons of some nervous cells in a discontinuous form. In electric terms, MYELIN, reduces the membrane capacitance because this layer is to thick to allow the action potential of the entire axon, to depolarize a complete nervous cell.

That is why there are some structures called <em>Ranvier Nodes, </em>those are spaces between every "wrap" of mielina, that have voltage sensitive sodium channels. This space between myelin sheaths, allows a "saltatory nerve conduction", that transmit the electrical impulse from one <em>Ranvier Node </em>to another, becoming the transmition in one of the fastest in the body. If this system would not exist, then the nervous transmision would be very slow.

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Which abbreviation refers to a procedure in which the patient is positioned at a distance from a radiation source?
zaharov [31]

EBRT (external beam radiation therapy)  guides to a procedure in which the patient stands positioned at a distance from a radiation source.

<h3>What is EBRT (external beam radiation therapy)?</h3>

The most widely utilized radiation oncology treatment is external beam radiation therapy (EBRT). In order to eradicate malignant cells or reduce tumors, high-dose radiation is used. During an EBRT surgery, a machine precisely guides external radiation beams onto your body's malignant regions.

The most used type of radiotherapy is external beam radiotherapy. An external source of ionizing radiation is focused at a specific area of the patient's body while they sit or lie on a couch.

The most used form of radiation therapy is external beam radiation therapy (EBRT). It targets the tumor with high-energy radiation beams. Targeted radiation beams from outside the body are used in EBRT. It is a non-invasive way of treating a tumor using radiation. To ensure that the radiation beams are precisely aimed at the tumor, they are shaped as they exit the linear accelerator and/or before they reach the patient.

Hence, EBRT (external beam radiation therapy)  guides to a procedure in which the patient stands positioned at a distance from a radiation source.

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4 0
2 years ago
Certain biological determinants of health may increase a population’s risk of environmentally caused health problems.
Solnce55 [7]

Answer: b. The elderly have a higher risk from toxic pesticides because they are less able to eliminate environmental toxins.

Explanation:

The older adults are expected to have health problems after a pesticide exposure. This is because of the fact that their metabolism is slow and the liver and kidneys are not able to remove the pesticides from the body. The liver and kidney may get injured during the exposure of the high doses of pesticides.

The longer a pesticide stay in the body of an old person this may result in more severe injury. As the body is slow in metabolism that is the conversion of the chemicals in the pesticides into less toxic metabolites. Thus the elderly people will not be able to eliminate the toxin from the body. The toxin will damage the vital organs and can lead to death.

4 0
3 years ago
Which other factors besides the alcohol content of the beverage, the amount of alcohol consumed, and the individual's usual alco
agasfer [191]
The functioning level that there liver has.
4 0
3 years ago
before calling the health care provider to report a slow progression or an arrest of labor, several assessments need to be made.
Norma-Jean [14]

The nurse must conduct a maternal examination before summoning the medical professional, including checking to see if the patient has a full bladder.

<h3>What is Maternal Assessment?</h3>

Providing staff development in the area of clinical nursing practice is the aim of this training. The course includes a collection of stand-alone learning resources for the care of low-risk pregnant clients.

<h3>Which medical condition would indicate that a woman is indeed in labor?</h3>

• True labor is indicated by consistent, progressively stronger, longer, and more frequent contractions. These contractions lead to progressive cervical effacement and dilatation over time. Therefore, a cervix that is 4 cm dilated and 90% effaced indicates actual labor.

• In addition, the nurse assesses the following: vital signs, physical exam, intactness of membranes through vaginal exam, and fetal well-being through fetal heart rate, characteristic of amniotic fluid, and contractions

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8 0
1 year ago
Materials with very little radioactivity that present no risk to the public should be shipped using what type of
Sholpan [36]

Answer:

Excepted Packaging is used to transport material with extremely low levels of radioactivity. Excepted packagings are authorized for limited quantities of radioactive material that would pose a very low hazard if released in an accident.

Explanation:

6 0
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