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Hitman42 [59]
3 years ago
8

A neurotransmitter of the sympathetic division of the nervous system that increases the heart rate and constricts smooth muscle

in blood vessels to raise blood pressure in the "fight or flight" response is called:
a. epinephrine.
b. aldosterone.
c. melatonin.
d. prolactin.
Medicine
1 answer:
Leto [7]3 years ago
7 0

Answer:

a. epinephrine.

Explanation:

Discovered in 1895, epinephrine, the hormone of "fight or flight" is a key neurotransmitter as man evolved.

Produced by the adrenal glands, it s main function is to trigger a quick response to potenital threats, seen an increased blood pressure to muscles, heart rate, pupils dilatation and increased metabolyizing of suger.

The incorrect levels of epinephrine will characterize a person suffering an anxiety disorder. If a situation requieres a stress response, epinephrine will help a living organism like mammals to answer quickly and surive.

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When mucin mixes with water, it becomes:
KATRIN_1 [288]

Answer:

Mucus

Explanation:

The protein present in the saliva is known as mucin .

When mucin mixes with water , it turns out to be a slippery substance , known as mucus.

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Human body produces approximately 1 to 1.5 liters per day.

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3 years ago
The nurse palpates the anterior fontanel of a newborn and notes that it feels soft. what does this datum indicate to the nurse?
zalisa [80]

The anterior fontanel is a diamond-shaped area where the frontal and parietal bones meet. It closes between 12 and 18 months of age. Vigorous crying may cause the fontanel to bulge, which is a normal finding. A nurse is performing an assessment on a postterm infant.

<h3>What is anterior fontanel?</h3>
  • This is the junction where the 2 frontal and 2 parietal bones meet. The anterior fontanelle stays soft until about 18 months to 2 years of age. Doctors can consider if there is increased intracranial pressure by touching the anterior fontanelle.
  • The fontanel can broaden in the first few months of life,18 and the median age of closure is 13.8 months. By three months of age, the anterior fontanel is secured in 1 percent of infants; by 12 months, it is closed in 38 percent; and by 24 months, it is closed in 96 percent.
  • The fontanelle allows the skull to distort during birth to facilitate its passage through the birth canal and for expansion of the brain after birth. Skull at birth, showing frontal and occipital fonticuli. The anterior fontanelle normally closes between the periods of 12 and 18 months.

To learn more about anterior fontanel, refer to:

brainly.com/question/1538272

#SPJ4

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How do you get $2,500 on brainly
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Answer: Can you actually get $2,500 on brainly

Explanation:

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