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Apex 1 - 2 Respiratory II: Physiology (24) > Pulmonary Reflexes > Flashcards

Flashcards in Pulmonary Reflexes Deck (14)
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1

True or False

Control of respiration is also influenced by sensors in the lung

True

2

Which type of receptors in the smooth airway muscle transduce pressure conditions inside the airway

Stretch receptors

3

Stretch receptors in the smooth airway muscle transduce pressure conditions inside the airway. They transmit this information to which respiratory center?

Dorsal respiratory center

(Tespiratory pacemaker)

4

Stretch receptors in the smooth airway muscle transduce pressure conditions inside the airway. They transmit this information to the dorsal respiratory center (respiratory pacemaker) along which nerves?

Vagus nerves (CN X)

5

Which reflex prevents alveolar overdistension?

Hering-Breuer inflation reflex

6

How does the Hering-Breuer inflation reflex prevent alveolar overdistension?

 

Stops inhalation when lung volume is too large

7

At which lung inflation volume does Hering-Breuer Inflation Reflex "turn off" the dorsal respiratory center?

When lung inflation is> 1.5 L above FRC

(x3 normal Vt)

8

True or False

The Hering-Breuer Inflation Reflex is not active during normal inspiration

True

9

Which reflex is just the opposite of the Hering-Breuer Inflation Reflex and helps prevent atelectasis by stimulating the patient to take a deep breath When lung volume is too small

Hering-Breuer Deflation Reflex

10

Stimulation of which receptors causes tachypnea?

J receptors

 

11

J receptors are also known as:

Pulmonary C Fiber Receptors

12

The J receptors are activated by things that Jam traffic in the pulmonary vasculature, such as

Pulmonary embolism

CHF

13

Which reflex causes a newborn baby to take her first breath?

Paradoxical reflex of Head

14

References:

 

Hall. Guyton and Hall Textbook of Medical Physiology 12th ed. 2011. p. 506. Nagelhout. Nurse Anesthesia. 6th ed. 2018. p. 581.