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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answer the question
Transcribed Image Text:how Notes
notes
Research
Citations & Bibliography
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Index
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 Rq mQ
cancer cens➖➖➖
basal goblet
cells cells
mucus
cilia
CHEAMER
STORY CHLAD
OMED TARENT
PHOE
I
(a) normal
(b) cancer develops
tumour
thin mucous layer
narrow bronchioles
T
7
(c) cancer advances
(d) tumour spreads
Case-Study Application Questions.
1 Based on the information that you gained in the case study, explain why
smokers are often plagued by a cough.
2 Why is the slowing of the cilia lining the bronchi especially dangerous?
3 Survey different smokers and find out how many cigarettes they smoke in one
day. Most cigarettes contain about 15 mg of tar, but it should be noted that only
75% of the tar is absorbed. Calculate the amount of tar taken in each day. Show
your calculations.
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