Author Question: What is the effect when the deflation reflex is stimulated? a. A strong inspiratory effort b. ... (Read 8 times)

mckennatimberlake · **on:** Jul 16, 2018

What is the effect when the deflation reflex is stimulated?

a. A strong inspiratory effort
b. Expiration is initiated
c. Cuts off all inspiratory signals
d. Stimulates the termination of expiration

Question 2

What reflex is associated with the sensory stimulation of the pulmonary stretch receptors that stimulate a deeper breath upon inspiration?

a. Carotid
b. Head's paradoxical
c. Hering-Breuer
d. J receptor

bfulkerson77 · **Reply #1 on:** Jul 16, 2018

Answer to Question 1

ANS: A
Sudden collapse of the lung stimulates strong inspiratory efforts (deflation reflex).

Answer to Question 2

ANS: B
If the Hering-Breuer reflex is blocked by cooling the vagus nerve, lung hyperinflation causes a further increase in inspiratory effort, the opposite of the Hering-Breuer reflex. The receptors for this reflex are called rapidly adapting receptors, because they stop firing promptly after a volume change occurs. Head's reflex may help maintain large tidal volumes during exercise and may be involved in periodic deep sighs during quiet breathing.