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

Author Question: What type of alveolar cells cover over 90 of the surface area of the alveolar-capillary mem-brane? ... (Read 107 times)

cagreen833

  • Hero Member
  • *****
  • Posts: 544
on: Jul 16, 2018
What type of alveolar cells cover over 90 of the surface area of the alveolar-capillary mem-brane?
 
  a. Alveolar macrophages
  b. Granular pneumocytes
  c. Type I cells
  d. Type II cells

Question 2

What is called the functional unit of the lungs?
 
  a. Only the alveoli
  b. Acinus
  c. Alveolar-capillary membranes
  d. Terminal bronchioles


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

perkiness

  • Sr. Member
  • ****
  • Posts: 348
Reply #1 on: Jul 16, 2018
Answer to Question 1

ANS: C
The alveolar septa are covered with extremely flat squamous epithelia called type I pneumocytes (Figure 9-54). While they represent only about 8 of all the cells found in the alveolar region, the type I cells cover approximately 93 of the alveolar surface.

Answer to Question 2

ANS: B
The primary lobule or acinus forms the functional unit of the lungs.


cagreen833

  • Member
  • Posts: 544
Reply 2 on: Jul 16, 2018
Gracias!

okolip

  • Member
  • Posts: 362
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

After 5 years of being diagnosed with rheumatoid arthritis, one every three patients will no longer be able to work.

Did you know?

Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.

Did you know?

Certain chemicals, after ingestion, can be converted by the body into cyanide. Most of these chemicals have been removed from the market, but some old nail polish remover, solvents, and plastics manufacturing solutions can contain these substances.

Did you know?

There are more nerve cells in one human brain than there are stars in the Milky Way.

Did you know?

Only 12 hours after an egg cell is fertilized by a sperm cell, the egg cell starts to divide. As it continues to divide, it moves along the fallopian tube toward the uterus at about 1 inch per day.

Modifications that occur at the ends of mRNA in eukaryotic cells. Modifications that occur at the ends of mRNA in eukaryotic cells.
lower surface of Arabidopsis thaliana leaf, showing a trichome lower surface of Arabidopsis thaliana leaf, showing a trichome
The Venusian Surface The Venusian Surface
Characterization of canine stem cells (MSCs). Characterization of canine stem cells (MSCs).
Airflow Associated with Surface Cyclones and Anticyclones Airflow Associated with Surface Cyclones and Anticyclones
Microtubules in dividing cells emanate from centrosomes Microtubules in dividing cells emanate from centrosomes
Video: Regulation of GFR: autoregulation via myogenic mechanism Myogenic mechanism

For a complete list of videos, visit our video library