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
vazorg [7]
3 years ago
10

How does an antihistamine reduce allergy symptoms? How does an antihistamine reduce allergy symptoms? a. An antihistamine binds

pollen antigens, preventing them from provoking an allergic reaction. b. An antihistamine blocks receptors for inflammatory chemicals released from granules within mast cells. c. An antihistamine kills mast cells, blocking an allergic reaction.
Biology
1 answer:
sattari [20]3 years ago
8 0

Answer:

b. An antihistamine blocks receptors for inflammatory chemicals released from granules within mast cells.

Explanation:

The mast cells situated at the body surfaces are responsible for alerting the immune system when a local infection is detected. This induces the secretion of inflammatory chemicals from granules within the mast cells once activated. Histamine is released which causes the blood vessels to expand and the skin to swell, thereby protecting the body. This leads to the production of symptoms like sneezing and rashes.

This allergic response to the perceived antigen is initiated as a result of the degranulation of the mast cell.

An antihistamine helps in stopping the histamine from affecting the cells in the body by blocking the receptors for the inflammatory chemicals released from granules within mast cells

You might be interested in
The process of natural selection
Stella [2.4K]

Answer:

3. shapes the genetic characteristics of a species as a consequence of adaptation

Explanation:

Natural selection is a process characterized by how plants and animals that are able to adapt to changes in their environment are able to survive and reproduce while those that are unable to adapt do not survive.

In natural selection, those variations in the genotype which increases an organism’s chances of survival and procreation are preserved and multiplied from generation to generation at the expense of less advantageous variations.

Natural selection is a way of enhancing the preservation of a group of organisms that are best adjusted to the physical and biological conditions of their environment and may also result in their improvement in some cases.

6 0
4 years ago
In general, what determines
meriva
C: The arrangement and movement of the particles in the substance. Solid particles vibrate and are compact. Liquid slide past each other and are close together. Gas particles are fast moving and very spread out.
7 0
3 years ago
Coach Wood's class is trying determine what factor is most important in the growth of earthworms. Each day, they take the
Andrews [41]
D) the earthworm measurement is accurate because moore subtracted the beginning and ending points from the ruler
5 0
3 years ago
Read 2 more answers
What effect does melting sea ice have on the atmosphere?
Nimfa-mama [501]

Global warming is the answer

6 0
3 years ago
Read 2 more answers
What is the physical appearance/characteristics of a cheetah?
DIA [1.3K]
Physical means on the outside so what does it look like on the outside it has spots its a kind of cat it has claws those kinds of things
7 0
4 years ago
Other questions:
  • Women with x-linked disorders always pass the genes for the disorder to ______, while men with x-linked disorders always pass th
    12·1 answer
  • How do the geosphere and atmosphere interact in the carbon cycle
    9·1 answer
  • Which are characteristics of all living things? check all that apply.
    12·1 answer
  • What is the heisenberg uncertainty principle?
    14·1 answer
  • PLEASE HELP! Easy 10 points
    13·1 answer
  • Which of the following phenomena usually only has an effect on very small populations?
    7·1 answer
  • Why is meiosis necessary for multicellular organisms?
    10·2 answers
  • HELP PLZZ?!
    5·2 answers
  • & What value is returned from this command? Math.floor(5.89) A. 5.9 B. 5.0 C. 6.0 D. This code produces an error​
    10·1 answer
  • Offspring inherit _________________; if one or both parents passes on a gene with DNA that does not code for functional proteins
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!