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2 years ago

Preparing the body for the "fight-or-flight" response is the role of the ________.

Biology

1 answer:

den301095 [7]2 years ago

6 0

Answer:

The correct answer is a. sympathetic nervous system.

Explanation:

The sympathetic nervous system involves the rapid involuntary response called fight and flight response during stress conditions. In a stressful condition, our body parts give signals to the hypothalamus which stimulates the sympathetic nervous system of the body.

The activated sympathetic nervous system then stimulates the release of a hormone called adrenalin and nor-epinephrine from the adrenal gland. These stress hormone together with neural activity give rise to fight and flight response.

During this response our mind becomes alter, breathing becomes deep, heart rate becomes high, pupil diabetes, and excess sweating occurs. Therefore the correct answer is a.

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A PICC line is a short catheter inserted into the jugular vein. A PICC line is a catheter that allows for infusion of intravenou

creativ13 [48]

Answer:

A PICC line is a long catheter inserted through the veins of the antecubital fossa.

Explanation:

PICC (peripherally inserted central catheter) that are mainly used as a part of chemotherapy for the administration of the particular substances. This can be used for the long period of time in the individual.

The long catheter is inserted in the body through the skin mainly at the peripheral site of the body. This can be inserted for the weeks depending on the severity of treatment. The veins of the antecubital fossa is used for the insertion of the tube.

Thus, the correct answer is option (3).

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3 years ago

Which region would be the warmest during daytime? A. B. C. Or D.?

marissa [1.9K]

Region A, Hope this helps.

5 0

2 years ago

Read 2 more answers

how many dna molecules would there be after four rounds of pcr if the initial reaction mixture contained two molecules?

Marat540 [252]

Answer: 32 molecules of DNA would be after four PCR if the initial reaction mixture contained two molecules

After 'n' rounds of the polymerase chain reaction, it is feasible to produce 2 n DNA molecules from a single DNA template molecule (PCR). Therefore, 2 to the power 4 = 16 DNA molecules will be produced after 4 PCR cycles
If two molecules are doubled four times, 32 DNA molecules are created.

Explanation:

The PCR method is what?

The highly sensitive PCR method enables quick DNA amplification of a particular section. Using visual methods based on size and charge, PCR may detect and identify gene sequences by producing billions of copies of a certain DNA fragment or gene.

What does a PCR have to accomplish?

A given DNA segment can be quickly multiplied (amplified) into millions or billions of copies using the polymerase chain reaction (abbreviated PCR), allowing for more in-depth analysis.

What are the three main PCR steps?

For any DNA synthesis reaction, there are only three easy stages that must be completed: First, the template is denaturated into single strands. Next, primers are annealed to each original strand to synthesise new DNA strands. Finally, the new DNA strands are extended from the primers.

To know more about PCR visit :

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1 year ago

After the birth of her baby a client tells the nurse, "i'm so cold, and i can't stop shaking." how should the nurse respond

shutvik [7]

The nurse should tell the patient that she will help her to get warm blankets in order for the chill to go away. Feeling of chills after giving birth is a common experience and it happens as a result of vasomotor reactions that occur during birth. Covering the patient with blanket will remove this discomfort.

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2 years ago

Name 4 factors<br> that can increase<br> the risk of heart<br> disease:

Furkat [3]

Lack of exercise
High blood pressure
Diabetes
Obesity and high cholesterol

4 0

2 years ago