« previous next »

Author Question: Approximately what percent of the normal changes in thoracic volume during quiet inspiration is due ... (Read 49 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?

To prove that stomach ulcers were caused by bacteria and not by stress, a researcher consumed an entire laboratory beaker full of bacterial culture. After this, he did indeed develop stomach ulcers, and won the Nobel Prize for his discovery.

Did you know?

The U.S. Pharmacopeia Medication Errors Reporting Program states that approximately 50% of all medication errors involve insulin.

Did you know?

The toxic levels for lithium carbonate are close to the therapeutic levels. Signs of toxicity include fine hand tremor, polyuria, mild thirst, nausea, general discomfort, diarrhea, vomiting, drowsiness, muscular weakness, lack of coordination, ataxia, giddiness, tinnitus, and blurred vision.

Did you know?

In Eastern Europe and Russia, interferon is administered intranasally in varied doses for the common cold and influenza. It is claimed that this treatment can lower the risk of infection by as much as 60–70%.

Did you know?

The modern decimal position system was the invention of the Hindus (around 800 AD), involving the placing of numerals to indicate their value (units, tens, hundreds, and so on).

Thoracic Thoracic
Normal conduction pathway in the heart Normal conduction pathway in the heart
Pediatric Vital Signs Normal Ranges Pediatric Vital Signs Normal Ranges
Normal conduction pathway in the heart Normal conduction pathway in the heart
An empty spice bottle has an inner volume of 1.31 10-4 m3 . It has a mass of 112 g when filled ... An empty spice bottle has an inner volume of 1.31 10-4 m3 . It has a mass of 112 g when filled ...
Bone formation in normal mice and mutants for the runt gene Cbfa1 Bone formation in normal mice and mutants for the runt gene Cbfa1
Video: Darwin's Observation (Fossils, Galapagos Islands & Africa ) and Natural Selection (Adaptive Traits)

For a complete list of videos, visit our video library