Question: You're talking to one of your grandparents on the phone, and they are telling you about some really neat things they just learned about the lungs on a documentary. Specifically, they are telling you about this really cool feedback loop where lower in CO2 in the blood in near skeletal muscles than usual to leads your brain to trigger a whole bunch of responses in how you breathe. They mention about how your medulla tells your systemic arterioles to constrict, for your external intercostals to contract less, and your lung muscles to contract less. You tell them how much you love to hear that they are learning about the respiratory system, but you gently note that the documentary must have got one thing wrong. The documentary was incorrect because
Question: You're talking to one of your grandparents on the phone, and they are telling you about some really neat things they just learned about the lungs on a documentary. Specifically, they are telling you about this really cool feedback loop where lower in CO2 in the blood in near skeletal muscles than usual to leads your brain to trigger a whole bunch of responses in how you breathe. They mention about how your medulla tells your systemic arterioles to constrict, for your external intercostals to contract less, and your lung muscles to contract less. You tell them how much you love to hear that they are learning about the respiratory system, but you gently note that the documentary must have got one thing wrong. The documentary was incorrect because
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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Question: You're talking to one of your grandparents on the phone, and they are telling you about some really neat things they just learned about the lungs on a documentary. Specifically, they are telling you about this really cool feedback loop where lower in CO2 in the blood in near skeletal muscles than usual to leads your brain to trigger a whole bunch of responses in how you breathe. They mention about how your medulla tells your systemic arterioles to constrict, for your external intercostals to contract less, and your lung muscles to contract less. You tell them how much you love to hear that they are learning about the respiratory system, but you gently note that the documentary must have got one thing wrong.
The documentary was incorrect because (see image)
Transcribed Image Text:The intercostal muscles
that are not responsible
for chest cavity expansion
Lungs don't have muscles
YES
This isn't a feedback loop
The intercostal muscles
are the only thing that are
responsible for lung
expansion
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