[Greek bronkhia, bronchial tubes (from bronkhos, windpipe) + Greek ektasis, extension (ek-, out; see ecto- + tasis, a stretching, from teinein, ta-, to stretch; see ten- in Indo-European roots).] Bronchiectasis is the medical term for dilation of the bronchi. bronchiectasis Progressive dilatation of bronchi or bronchioles due to pneumonitis, pneumonia, obstruction, tumours or congenital disease—e.g., cystic fibrosis. Dilation simply means opening, being less constricted. Dilatation is defined as the internal bronchial diameter greater than that of the adjacent pulmonary artery.
This is a condition of considerable frequency, and it arises under a variety of different circumstances. It depends partly on the context of your question. 3 Answers. Relevance . Bronchioles have a much smaller diameter than the bronchi (about 0.3-0.5 mm).
Answer and Explanation: The hormone that is responsible for increasing the heart rate and dilating the bronchioles is called epinephrine. In most cases the main agent in causing dilatation of the bronchi is the air-pressure acting excessively and very often acting on bronchi whose tissue is weakened by disease. It is a chronic necrotizing infection of bronchi & bronchioles causing abnormal permanent dilation of these airways. Bronchiectasis is the medical term for dilation of the bronchi. This is referred to as the signet-ring sign. It is a chronic necrotizing infection of bronchi & bronchioles causing abnormal permanent dilation of these airways.
Fig 3a,b, c, d. Lack of bronchial tapering. In fact, this portion of the air-passages is remarkable for the frequency with which dilatations occur, and for the degree of development which they attain.
Dilatation Of Bronchi. Bronchial Dilatation. Bronchiolectasis is a descriptive term which is given to dilatation of bronchioles, which are of smaller caliber than bronchi. Bronchiectasis Definition Bronchiectasis is a condition in which an area of the bronchial tubes is permanently and abnormally widened (dilated), with accompanying infection. Fig 4. Fig 3a.
It can arise in a number of pathologies. 2. In most cases the main agent in causing dilatation of the bronchi is the air-pressure acting excessively and very often acting on bronchi whose tissue is weakened by disease. Bronchiectasis . This is a condition of considerable frequency, and it arises under a variety of different circumstances.
Lv 7. (A) Causation. Bronchiectasis is the medical term for dilation of the bronchi.
It is a chronic necrotizing infection of bronchi & bronchioles causing abnormal permanent dilation of these airways. It …
is dilation a good thing? 2. Answer Save. AuntKatie. Normal airways diminish in calibre as they extend toward the lung periphery. what causes the bronchioles of the lungs to dilate? Favourite answer. (A) Causation. The walls of the bronchioles lack cartilage rings, but contain smooth muscle cells which can increase or decrease the diameter of the bronchioles in response to signals sent from the autonomic nervous system. dilation of bronchioles? sis (brŏng′kē-ĕk′tə-sĭs) n. Chronic dilatation of the bronchial tubes. bronchiectasis (ˌbrɒŋkɪˈɛktəsɪs) n … 9 years ago. This is the most important finding to establish a diagnosis of bronchiectasis. Bronchial Dilatation occurs, for the most part, in the smaller tubes, and, as a general rule, is most frequent and, at the same time, most extensive, in those of the third and fourth order. Dilatation Of The Bronchi (Bronchestasis) There are forms of bronchial dilatation besides that which depends on the wasting of the tissues in old age, or senile marasmus. can stress cause them to dilate? Bronchial dilatation. Description The bronchial tubes are the networks of branching tubes which deliver air to the tiny sacs of the lungs (alveoli).
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