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Author Question: Central mechanisms cause contraction and increased resistance to blood flow mainly through which of ... (Read 72 times)

itsmyluck

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on: Jul 16, 2018
Central mechanisms cause contraction and increased resistance to blood flow mainly through which of the following?
 
  a. Adrenergic stimulation and the release of norepinephrine
  b. Cholinergic stimulation and the release of acetylcholine
  c. Cholinergic stimulation and the release of norepinephrine
  d. Stimulation of specialized al-pha-adrenergic receptors

Question 2

Which portion of the nervous system is mainly responsible for the central control of the blood flow?
 
  a. Higher brain centers
  b. Parasympathetic nervous system
  c. Somatic (voluntary) nervous system
  d. Sympathetic nervous system


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mceravolo

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Reply #1 on: Jul 16, 2018
Answer to Question 1

ANS: A
Smooth muscle contraction and increased flow resistance are mostly caused by adrenergic stimu-lation and the release of norepinephrine.

Answer to Question 2

ANS: D
Central control of blood flow is achieved primarily by the sympathetic division of the autonomic nervous system.


itsmyluck

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Reply 2 on: Jul 16, 2018
Thanks for the timely response, appreciate it

upturnedfurball

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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

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