Physiology

Question 1

1. What is the role of central and peripheral chemoreceptors?
2. The central chemoreceptors are located in the _____ whereas the peripheral chemoreceptors are found in the _____ and ______ bodies.

Answer 1

1. Detecting levels of Oxygen, Carbon dioxide and Hydrogen ions in the CSF and blood respectively.
2. Brainstem, Carotid and Aortic

Question 2

1. Name two muscles which contract only in forced inspiration. Name the two muscles involved in active expiration

Answer 2

1. Sternocleidomastoid, Scalenus. Internal Intercostal muscles, abdominal muscles.