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Author Question: What receptors are known to cause an increase in ventilation when the patient's limbs are moved or ... (Read 137 times)

mydiamond

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on: Jul 16, 2018
What receptors are known to cause an increase in ventilation when the patient's limbs are moved or cold water is splashed on the patient's face?
 
  a. Irritant receptors
  b. J receptors
  c. Muscle spindles
  d. Peripheral proprioceptors

Question 2

What group of nerve cells senses and responds to changes in the chemical composition of its fluid environment?
 
  a. Chemoreceptors
  b. Gamma-efferent system
  c. Muscle spindle fibers
  d. Proprioceptors


lin77x

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

ANS: D
Proprioceptors in muscles, tendons, and joints, as well as pain receptors in muscles and skin, send stimulatory signals to the medullary respiratory center. Such stimuli increase medullary inspirato-ry activity and cause hyperpnea. For this reason, moving the limbs, slapping or splashing cold water on the skin, and other painful stimuli stimulate ventilation in patients with respiratory de-pression.

Answer to Question 2

ANS: A
Hypercapnia, acidemia, and hypoxemia stimulate specialized nerve structures called chemore-ceptors.


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