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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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Ximena's mom returned with the lab report of her blood lipid profile. Her HDL cholesterol was low and her LDL cholesterol levels
Leya [2.2K]

Answer:

Ximena's mom returned with the lab report of her blood lipid profile. Her HDL cholesterol was low and her LDL cholesterol levels were high. The doctor asked her to look closely at her diet. He asked her to increase unsaturated fats and to decrease saturated fats in her diet

Explanation:

Lipids are the most diverse range of compounds that are nonpolar in nature. The lipids are components of the cell membranes. They are formed of fatty acids, glycerol and a phosphate group. In the fatty acids of the unsaturated fats, there are the presence of double bonds. However, in case of the saturated fats, the double bonds are absent. Such fats are saturated with hydrogens atoms.  A type of lipid that play important roles in the body is cholesterol.

There are two types of lipoprotein that carry cholesterol in blood. The HDL or high density lipoprotein is termed as good cholesterol, as it carries the cholesterol back to the liver to eliminate it from the body. LDL or low density lipoprotein is the bad cholesterol, as it carries cholesterol and accumulates it in the arteries to form plaques. A lipid profile is a routine blood test that assess the levels of HDL and LDL in blood. Increase in unsaturated fat causes rise in HDL, that is good for cardiovascular health.

Learn more about cholesterol levels here:

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8 0
1 year ago
Domanda 1
Taya2010 [7]

Answer:

solve  the followig problem and write in your answer sheet of paper

Explanation:

solve  the followig problem and write in your answer sheet of paper

4 0
2 years ago
Which of the following statement(s) is (are) true? A. The force the heart must overcome in order to pump blood is known as the i
Verizon [17]

Answer:  D. Contractility of the heart muscle refers to the force of contraction that this muscle can exert.

Explanation:

The myocardial contractility is ability of the heart muscles to contract. This is achieved by the forces which develop between the contracting muscles caused by the filaments of actin and myosin.

The degree of binding of the muscle filaments dependents upon the calcium ion concentration. These actions are controlled in vivo by the sympathetic nervous system. It is driven by the release of the catecholamine, which is a process which determines the calcium ion concentration inside the cytosol of the muscles of the heart.  

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murzikaleks [220]

Answer:

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Answer:

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Explanation:

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