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Author Question: Which statement is correct regarding breathing? a. Before inspiration, the pressure inside the ... (Read 33 times)

awywial

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on: Jul 22, 2018
Which statement is correct regarding breathing?
 
  a. Before inspiration, the pressure inside the chest cavity is higher than atmospheric pressure.
  b. During expiration, the intrathoracic pressure rises to allow the air to escape into the atmosphere.
  c. When the chest wall moves, the lungs move.
  d. During inspiration, the chest wall is com-pressed.

Question 2

Another name for a low middle-range theory is a
 
  a. grand theory c. practice theory
  b. scientific theory d. positive theory


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Alyson.hiatt@yahoo.com

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Reply #1 on: Jul 22, 2018
Answer to Question 1

C
When the chest wall moves, so do the lungs because the lungs are attached to the inner wall of the thoracic cavity by the outer layer of the pleura. Before inspiration, the pressure inside the chest cavity is negative. During expiration, the muscles relax, decreasing intrathoracic pressure to allow the air to escape into the atmosphere. During inspiration, the chest wall expands.

Answer to Question 2

C
A grand theory is composed of concepts representing global and extremely complex phenomena. Another name for a low middle-range theory is a practice theory that deals exclusively with one specific phenomena.


awywial

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Reply 2 on: Jul 22, 2018
Gracias!

mohan

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Reply 3 on: Yesterday
Excellent

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