Cancer usually begins in the bronchi or bronchioles. Components of cigarette smoke contribute to the development of cancerous tumours. Study the four diagrams below, which show the development and progression of lung cancer. Listen to the video about the effects of smoking in our lungs using the link below. https://www.youtube.com/watch?v=69R0E Rg mQ cancer cens basal goblet cells cells mucus cilia
Cancer usually begins in the bronchi or bronchioles. Components of cigarette smoke contribute to the development of cancerous tumours. Study the four diagrams below, which show the development and progression of lung cancer. Listen to the video about the effects of smoking in our lungs using the link below. https://www.youtube.com/watch?v=69R0E Rg mQ cancer cens basal goblet cells cells mucus cilia
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Cancer usually begins in the bronchi or bronchioles. Components of cigarette
smoke contribute to the development of cancerous tumours. Study the four
diagrams below, which show the development and progression of lung cancer.
Listen to the video about the effects of smoking in our lungs using the link below.
https://www.youtube.com/watch?v=69R0E Rg mQ
cancer cens➖➖➖➖
-
basal goblet
cells cells
mucus
cilia
(a) normal
(b) cancer develops
tumour
thin mucous layer
DE
(c) cancer advances
(d) tumour spreads
I
5- While the cancerous tumour is still walled in by the basal membrane in diagram
C, the tumour breaks through the membrane in diagram D. At this stage, the
tumour may spread to other parts of the body. Cancer cells often use lymph
vessels as pathways to other parts of the body, where they continue to divide.
e) Why does this characteristic make cancer especially dangerous?
narrow bronchioles
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