Respiratory - Neural And Non Neural

Question 1

What does medulla control/regulate for respiration? Why is it called the inspiratory center?

Answer 1

Controls rate and depth

• Inspiratory center = controls intercostal muscles and diaphragm
• Also commands accessory inspiratory muscles

Question 2

What does pons do for regulating respiration?

Answer 2

Adjusts rate set by medulla

Question 3

What are non neural factors influencing respiration?

Answer 3

• CO2 levels trigger breathing
• O2 only trigger into pathological conditions (diseases/disorders)
• physical factors (coughing, talking, increased body temp)
• emotional factors
• volition (conscious control)

Question 4

How can increased arterial CO2 (hypercapnia) influence respiration?

Answer 4

Causes acidiosis, usually caused by low breathing rate (hypoventilation)

Question 5

How can decreased arterial CO2 (hypocapnia) influence respiration?

Answer 5

Caused by elevated rate and depth of breathing (hyperventilation)