Name the part of the body that fits each job…
Contributed by StemPy LabTry it on paper first. A hint, the key idea and the worked solution are here when you need them.
Name the part of the body that fits each job.
- It is primarily responsible for the regulation of respiration.
- It can shorten the duration of inspiration.
- It lies next to the rhythm centre and is highly sensitive to carbon dioxide and hydrogen ions.
- It lies in the aortic arch and the carotid artery and senses carbon dioxide and hydrogen ions.
Need a reminder? The key ideaShow
The respiratory rhythm centre is in the medulla. The pneumotaxic centre in the pons can shorten inspiration. The chemosensitive area next to the rhythm centre, and receptors in the aortic arch and the carotid artery, sense carbon dioxide and hydrogen ions. The role of oxygen is insignificant.
The worked solution
Have you tried it?
Work it out on paper first. It is fine to get stuck or make a mistake: that is how we learn. When you are ready, go through the solution one step at a time, and check each step against your own.
Step 1. (a) The respiratory rhythm centre, in the medulla.
Step 2. (b) The pneumotaxic centre, in the pons.
Step 3. (c) The chemosensitive area.
Step 4. (d) The receptors of the aortic arch and the carotid artery.
Answer: (a) the respiratory rhythm centre; (b) the pneumotaxic centre; (c) the chemosensitive area; (d) the receptors of the aortic arch and the carotid artery.
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