Asked by: Salimata Gleser
medical health lung and respiratory health

What are bronchioles function?

Last Updated: 19th January, 2020

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The function of the bronchioles is to ensure that incoming air is supplied to each alveolus. The alveoli are surrounded by tiny blood vessels called capillaries. It is through the thin capillary walls that oxygen enters the blood, and carbon dioxide and water leave the blood.

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Considering this, what is the function of the bronchi and bronchioles?

The task of the bronchi is to ensure the passage of air from the trachea to the bronchioles. The bronchioles allow gas exchange with blood: their many branches branch out into the alveoli and alveolar infundibula. In a sense, the bronchioles represent the terminal part of the respiratory tract.

Also, what is the function of the alveoli? Alveoli are tiny sacs within our lungs that allow oxygen and carbon dioxide to move between the lungs and bloodstream. Learn more about how they function and quiz your knowledge at the end.

Keeping this in view, what are the distinguishing features of the bronchioles?

Bronchioles are approximately 1 mm or less in diameter and their walls consist of ciliated cuboidal epithelium and a layer of smooth muscle. Bronchioles divide into even smaller bronchioles, called terminal, which are 0.5 mm or less in diameter.

What is bronchioles in science?

Bronchiole: The tiny branch of air tubes within the lungs that is a continuation of the bronchus. The bronchioles connect to the alveoli (air sacs).

Related Question Answers

Ansoumane Hontanilla

Professional

What is the main function of the bronchioles?

The function of the bronchioles is to ensure that incoming air is supplied to each alveolus. The alveoli are surrounded by tiny blood vessels called capillaries. It is through the thin capillary walls that oxygen enters the blood, and carbon dioxide and water leave the blood.

Tirso Shnayer

Professional

What is the main function of the bronchi?

The bronchi, singularly known as a bronchus, are extensions of the windpipe that shuttle air to and from the lungs. Think of them as highways for gas exchange, with oxygen going to the lungs and carbon dioxide leaving the lungs through them. They are part of the conducting zone of the respiratory system.

Avelina Sritharan

Professional

What is bronchi made of?

The bronchi are made up of smooth muscles with walls of cartilage giving them stability. These airways appear very similar to the trachea under the microscope.

Suizhu Turischev

Explainer

What's the difference between bronchi and bronchioles?

The bronchi (or bronchus) are the air passages into the lungs that begin at the end of the trachea. The bronchioles or bronchioli are the passageways by which air passes through the nose or mouth to the alveoli (air sacs) of the lungs, in which branches no longer contain cartilage or glands in their sub-mucosa.

Desheng Majchcza

Explainer

What is the function of the lung?

The lungs' main function is to help oxygen from the air we breathe enter the red cells in the blood. Red blood cells then carry oxygen around the body to be used in the cells found in our body. The lungs also help the body to get rid of CO2 gas when we breathe out.

Jarein Malonda

Explainer

What are the bronchi lined with and why?

The bronchi are lined with the same type of mucus that lines the rest of the respiratory tract. The tubes that make up the bronchial tree perform the same function as the trachea. They distribute air to the lungs. The alveoli are primarily responsible for exchanging carbon dioxide and oxygen, which occurs in the lungs.

Hatem Santini

Pundit

What are the three functions of the larynx?

The larynx serves three important functions in humans. In order of functional priority, they are protective, respiratory, and phonatory. A sound understanding of these functional priorities appears essential to the management of the myriad diseases besetting this complex organ.

Qiumei Bokser

Pundit

How the lungs can help the human body?

The lungs add oxygen to the blood and remove carbon dioxide in a process called gas exchange. In addition to the lungs, your respiratory system includes airways, muscles, blood vessels, and tissues that help make breathing possible. Your brain controls your breathing based on your body's need for oxygen.

Cherkaouia Stollt

Pundit

What is the structure of bronchioles?

Located within the lungs, bronchioles are tubular structures around 1mm in diameter, consisting of connective tissues and some smooth muscles that keep the tubes open. These further divide into smaller tubules, which in turn continue subdividing till they reach the alveoli.

Marquerite Laiseca

Pundit

What is the structure and function of the bronchial tree?

Together, the trachea and the two primary bronchi are referred to as the bronchial tree. At the end of the bronchial tree lie the alveolar ducts, the alveolar sacs, and the alveoli. The tubes that make up the bronchial tree perform the same function as the trachea: they distribute air to the lungs.

Mahmood Agin

Pundit

What happens when your bronchioles constrict?

Bronchoconstriction is a condition in which the smooth muscles of the bronchus contracts. This muscle contraction causes the bronchus to narrow and restrict the amount of air passing into and out of your lungs. Bronchoconstriction usually occurs in asthma, emphysema, and other lung diseases.

Yudith Scurtu

Teacher

How many alveoli do we have?

600 million alveoli

Mahayub Fern

Teacher

What type of cells make up the bronchioles?

Component Epithelium Secretory Cell
Bronchioles to Terminal Bronchioles Simple Columnar Ciliated Exocrine (dome-shaped)
Respiratory Bronchioles Simple Cuboidal (some cilia) Exocrine
Alveolar Duct Mostly Simple Squamous No
Alveoli Simple Squamous (Type I and II cells) Type II Cell

Hadrian Winternitz

Teacher

What are the parts of the lungs?

The lungs are a pair of spongy, air-filled organs located on either side of the chest (thorax). The trachea (windpipe) conducts inhaled air into the lungs through its tubular branches, called bronchi. The bronchi then divide into smaller and smaller branches (bronchioles), finally becoming microscopic.

Yuko Kalinkin

Teacher

Which tissue is present in bronchi of lungs?

Smooth muscle tissue or involuntary muscles is found in bronchi of the lungs. Histologically, the distal bronchioles have connective tissue and smooth muscle in the airway walls but do not have submucosal glands or cartilage.

Lichun Haizel

Reviewer

Where is the bronchi located?

The terminal bronchi and alveoli are located at the very end of the conducting zone and the beginning of the respiratory zone in the respiratory system. The bronchi (or bronchus) are the air passages into the lungs that begin at the end of the trachea. There are two bronchi, one for each lung.

Choukri Gsodl

Reviewer

How does the respiratory system work?

The primary organs of the respiratory system are the lungs, which function to take in oxygen and expel carbon dioxide as we breathe. The gas exchange process is performed by the lungs and respiratory system. Air, a mix of oxygen and other gases, is inhaled. Once in the lungs, oxygen is moved into the bloodstream.

Sangita Pehotin

Reviewer

What are the two functions of alveoli?

The function of the alveoli is to get oxygen into the blood stream for transport to the tissues, and to remove carbon dioxide from the blood stream. In the lungs, air is diverted into smaller and smaller microscopic branches called respiratory bronchioles, which connect to the alveolar ducts.

Zhonghai Haritzburu

Supporter

Can alveoli heal?

Oxygen from the air passes through the very thin walls of the alveoli to the surrounding blood vessels. Air sacs can be damaged from injuries, viruses, or lung disease. Damage to the air sacs can make it harder to breathe. Lung tissue is slow to regenerate.