« previous next »

Author Question: A lung that loses elastic fibers would exhibit which of the following characteristics? a. ... (Read 298 times)

folubunmi

  • Hero Member
  • *****
  • Posts: 524
on: Jul 16, 2018
A lung that loses elastic fibers would exhibit which of the following characteristics?
 
  a. Decreased airways resistance
  b. Decreased pulmonary vascular resistance
  c. Increased airway resistance
  d. Increased pulmonary compliance

Question 2

A fibrotic lung would exhibit which of the following characteristics?
 
  a. Decreased airway resistance
  b. Decreased lung compliance
  c. Decreased PVR
  d. Decreased surface tension


Kedrick2014

  • Sr. Member
  • ****
  • Posts: 359
Reply #1 on: Jul 16, 2018
Answer to Question 1

ANS: D
Increased compliance results primarily from loss of elastic fibers, which occurs in emphysema.

Answer to Question 2

ANS: B
The compliance curve of the patient with pulmonary fibrosis is flatter than the normal curve, shifted down and to the right. As a result, there is a smaller volume changes for any given pres-sure change (decreased compliance).


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

folubunmi

  • Hero Member
  • *****
  • Posts: 524
Reply #2 on: Jul 16, 2018
Thank you


Kedrick2014

  • Sr. Member
  • ****
  • Posts: 359
Reply #3 on: Jul 16, 2018
No problemo


« previous next »
 

Did you know?

Asthma is the most common chronic childhood disease in the world. Most children who develop asthma have symptoms before they are 5 years old.

Did you know?

The Centers for Disease Control and Prevention (CDC) was originally known as the Communicable Disease Center, which was formed to fight malaria. It was originally headquartered in Atlanta, Georgia, since the Southern states faced the worst threat from malaria.

Did you know?

Every flu season is different, and even healthy people can get extremely sick from the flu, as well as spread it to others. The flu season can begin as early as October and last as late as May. Every person over six months of age should get an annual flu vaccine. The vaccine cannot cause you to get influenza, but in some seasons, may not be completely able to prevent you from acquiring influenza due to changes in causative viruses. The viruses in the flu shot are killed—there is no way they can give you the flu. Minor side effects include soreness, redness, or swelling where the shot was given. It is possible to develop a slight fever, and body aches, but these are simply signs that the body is responding to the vaccine and making itself ready to fight off the influenza virus should you come in contact with it.

Did you know?

Giardia is one of the most common intestinal parasites worldwide, and infects up to 20% of the world population, mostly in poorer countries with inadequate sanitation. Infections are most common in children, though chronic Giardia is more common in adults.

Did you know?

There are 20 feet of blood vessels in each square inch of human skin.

Ventilation of the mammalian lung by negative pressure filling. Ventilation of the mammalian lung by negative pressure filling.
The fibers in silk cloth and in a spider web are made up of the protein fibroin The fibers in silk cloth and in a spider web are made up of the protein fibroin
Primates exhibit prolonged life histories, spending more time in each stage of life than most other Primates exhibit prolonged life histories, spending more time in each stage of life than most other
Normal lung volumes and capacities. Normal lung volumes and capacities.
Typical characteristics of r-selected and k-selected species Typical characteristics of r-selected and k-selected species
Use Fleury’s algorithm to determine Euler Circuit in the following graph. Exhibit exactly one ... Use Fleury’s algorithm to determine Euler Circuit in the following graph. Exhibit exactly one ...
Video: Five phases of cardiac cycle & Atrial contraction

For a complete list of videos, visit our video library