« previous next »

Author Question: What are the free-wandering phagocytic cells that ingest foreign material in the respiratory zone of ... (Read 45 times)

Haya94

  • Hero Member
  • *****
  • Posts: 558
on: Jul 16, 2018
What are the free-wandering phagocytic cells that ingest foreign material in the respiratory zone of the lungs?
 
  a. Alveolar macrophages
  b. Granular pneumocytes
  c. Type I cells
  d. Type II cells

Question 2

Where are the largest alveoli found in the lung?
 
  a. Lingula
  b. Apexes
  c. Bases
  d. Middle


katieost

  • Sr. Member
  • ****
  • Posts: 358
Reply #1 on: Jul 16, 2018
Answer to Question 1

ANS: A
Macrophages are another common cell found in the alveolar region. They can move from the pulmonary capillary circulation by squeezing through openings in the alveolar septa and then move out onto the alveolar surface. They are defensive cells that patrol the alveolar region and phagocytize foreign particles and cells (e.g., bacteria).

Answer to Question 2

ANS: B
Alveoli found in the apical regions of the vertical lung have greater diameters than those in the basal regions as a result of the gravitational effects. Those in the basal regions are partially col-lapsed as a result of the weight of the organ.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

If you use artificial sweeteners, such as cyclamates, your eyes may be more sensitive to light. Other factors that will make your eyes more sensitive to light include use of antibiotics, oral contraceptives, hypertension medications, diuretics, and antidiabetic medications.

Did you know?

Approximately 500,000 babies are born each year in the United States to teenage mothers.

Did you know?

Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.

Did you know?

People often find it difficult to accept the idea that bacteria can be beneficial and improve health. Lactic acid bacteria are good, and when eaten, these bacteria improve health and increase longevity. These bacteria included in foods such as yogurt.

Did you know?

Intradermal injections are somewhat difficult to correctly administer because the skin layers are so thin that it is easy to accidentally punch through to the deeper subcutaneous layer.

Prokaryote v. Eukaryote (Plant vs. Animal Cells) Prokaryote v. Eukaryote (Plant vs. Animal Cells)
Nondisjunction during the formation of haploid cells. Nondisjunction during the formation of haploid cells.
Transduction in Hair Cells of the Inner Ear Transduction in Hair Cells of the Inner Ear
Switching of mating type in haploid yeast cells Switching of mating type in haploid yeast cells
Free Radicals and Antioxidants Free Radicals and Antioxidants
Video: What is Reverse Osmosis?

For a complete list of videos, visit our video library