« previous next »

Author Question: An allergen is best described as a: A) substance in the body that recognizes foreign materials. ... (Read 28 times)

kfurse

  • Hero Member
  • *****
  • Posts: 590
on: Jul 3, 2018
An allergen is best described as a:
 
  A) substance in the body that recognizes foreign materials.
  B) chemical released by cells in the body to fight foreign materials.
  C) chemical messenger in the body that activates the immune system when there is a foreign material present.
  D) foreign substance that causes a hypersensitivity reaction in the body.

Question 2

Activase is used to:
 
  a. break down thrombi.
  b. dilate blood vessels to reduce blood pressure.
  c. decrease the formation of platelet plugs.
  d. interrupt the clotting cascade.


Dinolord

  • Sr. Member
  • ****
  • Posts: 313
Reply #1 on: Jul 3, 2018
Answer to Question 1

D

Answer to Question 2

a


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Anti-aging claims should not ever be believed. There is no supplement, medication, or any other substance that has been proven to slow or stop the aging process.

Did you know?

The toxic levels for lithium carbonate are close to the therapeutic levels. Signs of toxicity include fine hand tremor, polyuria, mild thirst, nausea, general discomfort, diarrhea, vomiting, drowsiness, muscular weakness, lack of coordination, ataxia, giddiness, tinnitus, and blurred vision.

Did you know?

When taking monoamine oxidase inhibitors, people should avoid a variety of foods, which include alcoholic beverages, bean curd, broad (fava) bean pods, cheese, fish, ginseng, protein extracts, meat, sauerkraut, shrimp paste, soups, and yeast.

Did you know?

Lower drug doses for elderly patients should be used first, with titrations of the dose as tolerated to prevent unwanted drug-related pharmacodynamic effects.

Did you know?

In most cases, kidneys can recover from almost complete loss of function, such as in acute kidney (renal) failure.

The three basic body plans of bilaterally symmetrical animals. The three basic body plans of bilaterally symmetrical animals.
Vertebral compression Fractures of the spine (vertebra) can cause severe ”band-like” pain that radia Vertebral compression Fractures of the spine (vertebra) can cause severe ”band-like” pain that radia
The digital image of a fetus shows a well-developed head and a comparatively smaller body. At 7 ... The digital image of a fetus shows a well-developed head and a comparatively smaller body. At 7 ...
Position of the fetus in late pregnancy results in stresses on the mother’s body. Position of the fetus in late pregnancy results in stresses on the mother’s body.
Transformation of a Women's Body During Pregnancy Transformation of a Women's Body During Pregnancy
Packaging materials like zip-close bags, egg cartons, and takeout containers should be thrown away Packaging materials like zip-close bags, egg cartons, and takeout containers should be thrown away
Video: Energy sources - types

For a complete list of videos, visit our video library