1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Ganezh [65]
3 years ago
10

Norepinephrine acts on the heart by _________

Medicine
1 answer:
Westkost [7]3 years ago
6 0

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>

You might be interested in
laboratory studies are performed for patient suspected of having iron deficiency anemia the nurse reviews the laboratory results
Anit [1.1K]

patient with iron deficiency anemia will have low hemoglobin levels as well as microcytic and hypochromic RBCs, according to the results of a complete blood count. Typically, the reticulocyte count is normal or slightly increased.

<h3>what is iron deficiency anemia?</h3>
  • Insufficient iron is the cause of iron deficiency anemia.
  • Your body needs iron to produce enough of a component in red blood cells that makes it possible for them to carry oxygen (hemoglobin).
  • Thus, iron deficiency anemia may make you feel lethargic and breathless.
<h3>How serious is iron deficiency anemia?</h3>
  • Iron-deficiency anemia can have major side effects, including fatigue, headaches, restless legs syndrome, heart issues, problems during pregnancy, and delays in a child's development.
  • Additionally, iron deficiency anemia can worsen other chronic illnesses or render their therapies ineffective.
<h3>What three levels of iron deficiency are there?</h3>

Deficiency in Iron Has 3 Stages

  • Stage 1: A decrease in the body's overall iron content. A decrease in serum ferritin serves as an indicator of this stage.
  • Stage 2 Reduced red blood cell production. This stage develops when there is not enough iron available to sustain the production of red blood cells.
  • Stage 3 Iron deficiency anemia.

learn more about Iron deficiency anemia here

<u>brainly.com/question/866200</u>

#SPJ4

5 0
1 year ago
Which of the following is a risk of skipping health screenings?
denis-greek [22]
A. late diagnosis is the right answer
simple, hope i helped :)
8 0
3 years ago
Read 2 more answers
What is a case called in which a person is harmed because of another person's actions or failure to act?
7nadin3 [17]

Answer:

Advance Directive

Explanation:

i do not know

8 0
3 years ago
The following compound is a(n) ____. a. industrial solvent b. amino acid c. vitamin d. monomer for polystyrene
Debora [2.8K]

Answer:

Option B== > Amino acid

Explanation:

KINDLY NOTE that the compound in the question is attached below as a picture.

From the diagram in the picture, the compound contains an aryl group, Amine functional group and a carboxylic functional group. An Amino acid compound is a compound that has carboxyl group and the amine group which makes the answer to the question to be option 'b' that is Amino acid.

Polystyrene has formula like this:(C8H8)n, there is no amine functional group attached and there is no carboxyl functional group either which makes polystyrene not to be the answer. This the same case with vitamin D which has which has hydroxyl functional group and not carboxylic nor does it has amine functional group. Although it has been revealed through series of researches that Amino acid are good solvent for Carbondioxide, the most correct option for this question will be on identifying the correct compounds with reference to their functional groups.

3 0
3 years ago
1. An Incident Commander's scope of authority is derived from existing laws, agency policies, and/or
Nuetrik [128]
I would say B but I may be wrong
5 0
2 years ago
Other questions:
  • Life support can be handled by any level of EMT.<br><br><br> True<br><br> False
    14·2 answers
  • Which type of formula is not diluted with water, before being administered to an infant?
    14·1 answer
  • Lungs are considered: <br> a-Radioluscent, radiotranparent<br> b-Radiopaque <br> C-None
    5·2 answers
  • What is term nephritis mean?
    10·2 answers
  • Most adults have a resting heart rate of what? 10 to 20 beats per minute, 30 to 50 beats per minute, 60 to 90 beats per minute,
    11·2 answers
  • Phillip || dreamed of conquering Perisa but did not do so because​
    8·1 answer
  • What is the human body called
    7·1 answer
  • GEO' Instantly<br>Instantly<br>Bond<br>ANT​
    12·1 answer
  • Recent advances in dental technology have made possible all of the following EXCEPT 1 point Convenient scanning of soft tissue f
    5·1 answer
  • What is the ground substance in typical connective tissue matrix?.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!