Author Question: How do drugs like beta-blockers and calcium-channel blockers cause the heart to relax? A) They ... (Read 140 times)

audragclark

  • Hero Member
  • *****
  • Posts: 579
How do drugs like beta-blockers and calcium-channel blockers cause the heart to relax?
 
  A) They block receptors that cause muscle contraction.
  B) They block the re-uptake of neurotransmitters that tell the heart to beat faster.
  C) They increase the release of neurotransmitters that slow the heart beat.
  D) all of the above
  E) none of the above

Question 2

The separation of charges within a polar molecule is called a(n) ________.
 
  A) dipole
  B) dipole-dipole
  C) ionic bond
  D) strong attraction
  E) polar bond



reversalruiz

  • Sr. Member
  • ****
  • Posts: 327
Answer to Question 1

A

Answer to Question 2

A



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question


 

Did you know?

About 80% of major fungal systemic infections are due to Candida albicans. Another form, Candida peritonitis, occurs most often in postoperative patients. A rare disease, Candida meningitis, may follow leukemia, kidney transplant, other immunosuppressed factors, or when suffering from Candida septicemia.

Did you know?

In the ancient and medieval periods, dysentery killed about ? of all babies before they reach 12 months of age. The disease was transferred through contaminated drinking water, because there was no way to adequately dispose of sewage, which contaminated the water.

Did you know?

Today, nearly 8 out of 10 pregnant women living with HIV (about 1.1 million), receive antiretrovirals.

Did you know?

Intradermal injections are somewhat difficult to correctly administer because the skin layers are so thin that it is easy to accidentally punch through to the deeper subcutaneous layer.

Did you know?

Adult head lice are gray, about ? inch long, and often have a tiny dot on their backs. A female can lay between 50 and 150 eggs within the several weeks that she is alive. They feed on human blood.

For a complete list of videos, visit our video library