resp physiology Q7

the pons and medulla in the brain.

(homeostatic) and (adaptive) reflexes.

chemoreceptors in carotid body will detect this change>send signal to the respiratory control centre (medulla,pons)>send signal to resp muscle>increased frequency of depth of breathing.

<p>DRG will be active, send signals in 2 sec for inhalation, diaphragm and will contract and external intercostal muscle contract&gt;normal quite inhalation.</p> Signup and view all the answers

<p>the DRG will be inactive (3sec), no signals, diaphragm relaxes and the external intercostal muscles relax, elastic recoil of lungs&gt;normal quite exhalation.</p> Signup and view all the answers

<p>DRG send signals so diaphragm and external ... contracts&gt; DRG also activates VRG (forceful inhalation neurons)&gt;DRG will activate the accessory muscles of inhalation (eg pectoralis minor) so they contact&gt;forceful inhalation.</p> Signup and view all the answers

<p>send signals to the accessory muscle of exhalation (abdominis muscles, external oblique and etc) so they contract, forceful exhalation.</p> Signup and view all the answers

<p>VRG</p> Signup and view all the answers

<p>DRG</p> Signup and view all the answers

<p>cerebral cortex.</p> Signup and view all the answers