« previous next »

Author Question: Approximately what percent of the normal changes in thoracic volume during quiet inspiration is due ... (Read 83 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?

Liver spots have nothing whatsoever to do with the liver. They are a type of freckles commonly seen in older adults who have been out in the sun without sufficient sunscreen.

Did you know?

Though methadone is often used to treat dependency on other opioids, the drug itself can be abused. Crushing or snorting methadone can achieve the opiate "rush" desired by addicts. Improper use such as these can lead to a dangerous dependency on methadone. This drug now accounts for nearly one-third of opioid-related deaths.

Did you know?

When blood is deoxygenated and flowing back to the heart through the veins, it is dark reddish-blue in color. Blood in the arteries that is oxygenated and flowing out to the body is bright red. Whereas arterial blood comes out in spurts, venous blood flows.

Did you know?

The U.S. Preventive Services Task Force recommends that all women age 65 years of age or older should be screened with bone densitometry.

Did you know?

Inotropic therapy does not have a role in the treatment of most heart failure patients. These drugs can make patients feel and function better but usually do not lengthen the predicted length of their lives.

Independent assortment produces 50 percent recombinants Independent assortment produces 50 percent recombinants
An electrocardiogram (ECG, EKG) is a commonly used procedure in which the electrical events associat An electrocardiogram (ECG, EKG) is a commonly used procedure in which the electrical events associat
Pediatric Vital Signs Normal Ranges Pediatric Vital Signs Normal Ranges
Fraternal twins share about 50 percent of their segregating genes. Fraternal twins share about 50 percent of their segregating genes.
Daniel's Enterprises has a beta of 1.98 and a growth rate of 12 percent. The stock is ... Daniel's Enterprises has a beta of 1.98 and a growth rate of 12 percent. The stock is ...
Normal karyotype of a human male Normal karyotype of a human male
Video: Membrane transport proteins - pores, gated channels and pumps

For a complete list of videos, visit our video library