« previous next »

Author Question: Approximately what percent of the normal changes in thoracic volume during quiet inspiration is due ... (Read 92 times)

Pineapplelove6

  • Hero Member
  • *****
  • Posts: 560
on: Jul 16, 2018
Approximately what percent of the normal changes in thoracic volume during quiet inspiration is due to the action of the diaphragm?
 
  a. 15
  b. 25
  c. 50
  d. 75

Question 2

How far is the diaphragm pulled down during tidal breathing?
 
  a. 1 to 2 cm
  b. 3 to 5 cm
  c. 6 to 8 cm
  d. 8 to 10 cm


DylanD1323

  • Sr. Member
  • ****
  • Posts: 314
Reply #1 on: Jul 16, 2018
Answer to Question 1

ANS: D
During quiet breathing, the diaphragm is responsible for approximately 75 of the change in thoracic volume.

Answer to Question 2

ANS: A
When the muscle fibers of the diaphragm are tensioned during inspiration, the dome of the dia-phragm is pulled down 1 to 2 cm.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

According to the American College of Allergy, Asthma & Immunology, more than 50 million Americans have some kind of food allergy. Food allergies affect between 4 and 6% of children, and 4% of adults, according to the CDC. The most common food allergies include shellfish, peanuts, walnuts, fish, eggs, milk, and soy.

Did you know?

Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.

Did you know?

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

Did you know?

People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.

Did you know?

Nitroglycerin is used to alleviate various heart-related conditions, and it is also the chief component of dynamite (but mixed in a solid clay base to stabilize it).

Maintenance of normal blood glucose levels. Maintenance of normal blood glucose levels.
A fuel-pressure reading does not confirm that there is enough fuel volume for the engine to ... A fuel-pressure reading does not confirm that there is enough fuel volume for the engine to ...
(A) Normal glomerulus and (B) acute glomerulonephritis. (A) Normal glomerulus and (B) acute glomerulonephritis.
Volume Changes Volume Changes
This image shows a normal third-trimester fetal brain This image shows a normal third-trimester fetal brain
Normal compound eye of adult Drosophila Normal compound eye of adult Drosophila
Video: Carbohydrate digestion (brush border enzymes, end products) & Carb absorption (fructose, galactose)

For a complete list of videos, visit our video library