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 mucus cilia cells cells

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
CALLED MAR
CALAMAND
(b) cancer develops
thin mucous layer
TUR
HEMER
(c) cancer advances
(d) tumour spreads
1 Diagram B shows the beginning of a cancerous tumour.
c) In what area does the tumour begin to develop?
2 Diagram C shows how the tumour begins to grow.
d) Why has the mucous layer in diagram C decreased in size?
(a) normal
tumour
narrow bronchioles
BREADE
Voice
I
Sens
Transcribed Image Text: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 CALLED MAR CALAMAND (b) cancer develops thin mucous layer TUR HEMER (c) cancer advances (d) tumour spreads 1 Diagram B shows the beginning of a cancerous tumour. c) In what area does the tumour begin to develop? 2 Diagram C shows how the tumour begins to grow. d) Why has the mucous layer in diagram C decreased in size? (a) normal tumour narrow bronchioles BREADE Voice I Sens
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