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In aging there is usually a gradual INCREASE in the compliance of the lung tissue (i.e. a decrease in tissue elasticity). This means that the lung is more easily distended but then has more difficulty in recoiling to it's original state and so exhalation can become difficult. The compliance of the chest wall is decreased in aging, and respiratory muscles weaken, adding to this effect.
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What determines lung compliance?
Lung compliance is determined by the elasticity of the lung tissue and the surface tension of the alveoli. Compliance decreases with conditions that stiffen the lung tissue, such as fibrosis, or increase surface tension, such as pulmonary edema. Compliance also decreases with aging and certain diseases like chronic obstructive pulmonary disease (COPD).
What is lung compliance?
Lung compliance = Lung expandability
What effect does a deficiency of surfactant exert on lung compliance?
Increased compliance result
Ease with which lung tissue can be stretched?
Compliance
What is the difference between chest wall compliance and lung compliance, and how do they affect overall respiratory function?
Chest wall compliance refers to the ability of the chest wall to expand and contract during breathing, while lung compliance refers to the ability of the lungs to stretch and expand. Chest wall compliance can affect the pressure inside the chest cavity, while lung compliance affects the ease of lung expansion and air flow. Together, they determine how easily air can move in and out of the lungs, impacting overall respiratory function.
What characteristics of normal lung tissue are missing from diseased tissue?
the two main characteristics of normal lung tissue that may be affected in diseased individuals are either Compliance or Elasticity. compliance is the characteristic of lung tissue that allows it to expand elasticity is the characteristic of lung tissue that allows it go back to its former shape and size. elasticity is usually affected in chronic obstructive conditions like emphysema compliance is usually affected in restrictive lung dysfunctions like pulmonary fibrosis.
Which of the following changes will accompany the loss of lung elasticity associated with aging?
Increase in residual volume
What happens to the skin when aging?
It get rusty and saggy
What is thoracic compliance?
Thoracic compliance refers to the ability of the chest wall and lungs to expand and accommodate air during breathing. It is a measure of how easily the lungs can stretch and expand. Changes in thoracic compliance can affect lung function and breathing mechanics.
What causes static compliance to decrease?
Static compliance decreases due to factors like pulmonary fibrosis, lung tissue scarring, or poor surfactant function which results in reduced ability of the lungs to stretch and expand during inhalation, leading to decreased lung capacity and restricted airflow.
What happens when a lung cell malfunctions?
you die
What happens when you smoke a pipe?
You get lung cancer!!
