Alveolar functions in man, definition, structure, location of parts

alveolar function

Articles of Challenge Papers alveolar function in human includes understanding, main cells, structure, advantages, aims, methods, parts, examples and pictures so that they can be easily understood.

What is an alveolus,,, which is one of the alveolar wall cells in human organs, so it undergoes the exchange of oxygen gas (O2) and also can get from the air to the blood cells in the body, which forms the exchange carbon dioxide (CO2) from the air blood flows through the thin walls of the air-filled lungs.

See the discussion below for more details:

Definition of alveolus


alveolus is a urinary bladder that can contain air in the lungs with a roll of up to 300 million pieces and is formed from the alveoli.

Alveoli are located in the lungs which are the airways where air is exchanged with blood by dividing two sides so they have thin walls of blood capillaries covered by blood capillaries.

The walls of the alveoli are in exchange with oxygen (O2), which enters the body cells from the air, to form carbon dioxide (CO2) from the cells to the outside.

Alveoli also have very thin walls at the ends of the smallest airways in the lung wall, which contain air about 200 to 300 microns in diameter.

Also read: Throat Function

alveolar function

From some of the descriptions we discussed above, here we will also present some of the functions of the alveolus itself which are as follows:

A. As a gas exchange temp

The function contained in the air sacs of the lungs is passive gas exchange, so the cells in the organs of the body do not need energy between them during the exchange.

  • Oxygen in the alveoli can permeate the walls and then the walls of the blood capillaries surround the cells that contain the alveoli.
  • The contents of the alveoli can enter the blood vessels and undergo an increase process carried out by hemoglobin in the blood cells and produce components (HbO2).
  • The contents of the alveoli then deliver oxygen to all organs and cells in the body through an oxidation process that alters oxyhemoglobin.
  • The contents of the alveoli can enter the body and reach 300 liters of oxygen in the blood plasma.

B. Gas exchange point of blood capillaries

Functions content of the human body contained in the alveoli and can produce about 200 cc of carbon dioxide per day with the formation of carbon dioxide into acidic substances in the blood.

Then, the gas exchange site of the blood capillaries can neutralize the pH acidity by the blood flow deep into the lungs, so that carbonate is formed to measure the blood pH.

The grooves found in the alveolus are:

  • The CO2 pathway is bound to hemoglobin, which returns to the lungs through the human bloodstream.
  • Alveolar grooves lie in the bronchioles of the lungs by penetrating the walls of the alveolar blood vessels.
  • The CO2 stream in carbon dioxide travels down the throat into the nostrils releasing air.

Also read: Membrane Functions

C. Air retention in the body

Another function of the alveoli is to store air to breathe oxygenated air into the blood, so the alveoli have a structure like the anatomy of the human body.

The function of anatomical structures can be done by breathing through the nasal passages, which inhale oxygenated air (O2) by absorbing the entire circulatory system in the human body.

Alveolar chief cells

From the discussion above, here we will also introduce some of the most important alveolar cells that are found in the human body, namely:

  • Squamous Cell Carcinoma (Type I) is one of the cells that will form like the structure of the alveolus.
  • Large alveolar cells (Type II) is a cell that has the task of storing surfactants that break the pressure on the water surface through a separation process during gas exchange.
  • squamous cell is one of the cells that acts as a capillary that works in gas cells, reaching 70% of the area.
  • macrophage cell is one of the cells that can destroy bacteria with foreign substances that enter the body through respiration.

alveolar structure

The structure of the alveolus consists of several layers of epithelium and extracellular matrix surrounded by capillaries, which serve to facilitate the binding of oxygen with air in the alveolar cavity from the pores, which contain many collagen fibers.

Then the alveolar structure can breathe air with an anatomical structure that stretches to allow collagen fibers to tighten the walls.

The structure of the alveolus is divided into 3 parts:

  • structure alveolus have epithelial cells (Type I) that make up the alveolar structure
  • structure alveolus There are large cells (type II) with a separating task in order to reduce the tension on the water surface through the separating process.
  • structure alveolus There are squamous cells that act as capillaries, and capillary formation covers 70% of the area.

That’s all we can say about some discussion of alveolar function and some of its structures and parts. Hopefully this article can be useful and beneficial for all of us with this article, that’s all and thanks

Also read: laryngeal function

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