This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Which of the following best describes what happens when the lungs expand? A) Contraction of the ... (Read 17 times)

mcmcdaniel

  • Hero Member
  • *****
  • Posts: 550
on: Jul 4, 2018
Which of the following best describes what happens when the lungs expand?
 A) Contraction of the muscles of inspiration pushes the diaphragm up, causing air to flow into the lungs.
  B) Contraction of the muscles of inspiration decreases the volume of the thorax, causing a decrease in pressure (Boyle's law).
  C) Expansion of the thorax causes the lungs to expand as a function of the negative intrapleural pressure between the parietal and visceral pleurae.
  D) None of the above.

Question 2

An adults has a larger respiratory capacity than an infant. Which of the following best explains this capacity difference?
 A) An adult has a larger thorax
  B) The adult lung is stretched to fill the thorax
  C) The adult can voluntarily expand his or her lungs
  D) a & b
  E) a & c


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

lin77x

  • Sr. Member
  • ****
  • Posts: 326
Reply #1 on: Jul 4, 2018
Answer to Question 1

C

Answer to Question 2

D


mcmcdaniel

  • Member
  • Posts: 550
Reply 2 on: Jul 4, 2018
Excellent

raili21

  • Member
  • Posts: 324
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

The tallest man ever known was Robert Wadlow, an American, who reached the height of 8 feet 11 inches. He died at age 26 years from an infection caused by the immense weight of his body (491 pounds) and the stress on his leg bones and muscles.

Did you know?

The human body's pharmacokinetics are quite varied. Our hair holds onto drugs longer than our urine, blood, or saliva. For example, alcohol can be detected in the hair for up to 90 days after it was consumed. The same is true for marijuana, cocaine, ecstasy, heroin, methamphetamine, and nicotine.

Did you know?

On average, the stomach produces 2 L of hydrochloric acid per day.

Did you know?

When Gabriel Fahrenheit invented the first mercury thermometer, he called "zero degrees" the lowest temperature he was able to attain with a mixture of ice and salt. For the upper point of his scale, he used 96°, which he measured as normal human body temperature (we know it to be 98.6° today because of more accurate thermometers).

Did you know?

It is believed that humans initially contracted crabs from gorillas about 3 million years ago from either sleeping in gorilla nests or eating the apes.

lungs lungs
Pneumonia. This common lung inflammation may be caused by bacteria, viruses, or fungi and is often d Pneumonia. This common lung inflammation may be caused by bacteria, viruses, or fungi and is often d
Mechanism of Muscular Contraction Mechanism of Muscular Contraction
Lungs Lungs
Blood Supply to the Lungs Blood Supply to the Lungs
Role of calcium in muscle contraction Role of calcium in muscle contraction
Video: Structures that affect circulation - arterioles and vasomotor responses and venous return

For a complete list of videos, visit our video library