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What else can I help you with?
Bronchioles are kept open by?
rings of cartilage
The bronchioles lack the support of what?
Cartilage rings that are found in trachea
What is the diffirence of bronchi and bronchioles?
Very small bronchi are called as bronchioles. You have cartilage rings in case of the bronchi. Such rings are absent in case of the bronchiloles. You need such C shaped cartilage rings in case of bronchi, so that they should not get collapsed. The bronchioles are in periphery and they can not collapse because they are very small muscular tubes. C shaped cartilage saves lot of muscle mass of the bronchi to prevent them from collapsing.
Which type of bronchioles don't have cartilage?
Bronchioles don't have cartilage because they need to be able to constrict and dilate
Do the bronchioles have cartilage support?
No, bronchioles do not have cartilage support. They are small airways in the respiratory system that lack the cartilage rings present in larger airways such as bronchi. Instead, bronchioles are supported by smooth muscle.
Which structure has no ccartillage rings?
The trachea, or windpipe, contains cartilage rings to maintain its structure, while the bronchi and bronchioles progressively decrease in cartilage as they branch into smaller airways. However, the alveoli, the tiny air sacs where gas exchange occurs, have no cartilage rings at all. Instead, they are composed of thin elastic tissue that allows for expansion and contraction during breathing.
Why trachea never collapse when there is insuficient air in it?
cartilage rings give support to trachea to open all the time
Why bronchi have rings of cartilage?
Think about this one for a minute. Would it be a good idea for the windpipe to fold up like a garden hose every time you bend your head? What would happen if your air supply was cut off every few seconds? The cartilage keeps the trachea and bronchi open at all times.
What lacks the support of cartilage in the respiratory system?
THE BRONCHIOLES
Which organ of respiratory system do not contain cartilage?
the bronchioles
Which has more cartilage the primary bronchi or the bronchioles?
primary
The changes that occur as the bronchial tree gets smaller are what?
Support structures change: irregular plates of cartilage replace the cartilage rings, and by the time the bronchioles are reached, the tube walls no longer contain supportive cartilage. Epithelium type changes: the mucosal epithelium things as it changes from pseudostratified columnar to columnar and then to cuboidal in the terminal bronchioles. Mucus-producing cells and cilia are sparse in the bronchioles. For this reason, most airborn debris found at or below the level of the bronchioles must be removed by macrophages in the alveoli. Amount of smooth muscle increases: the relative amount of smooth muscle in the tube walls increases as the passageways become smaller. A complete layer of circular smooth muscle in the bronchioles and the lack of supporting cartilage (which would hinder construction) allows the bronchioles to provide substantial resistance to air passage.
