Control Of Resp

Question 1

How does the hypothalamus control respiration

Answer 1

Strong emotions and pain activate the sympathetic nervous centres in hypo. Hypo then sends signals to resp centres in brain stems

Question 2

Within the medulla oblongata, what 2 neutrons are vital

Answer 2

Dorsal and ventral

Question 3

The dorsal respiratory group in the medulla oblongata is also known as what and controls what

Answer 3

Known as inspiratory centre and controls basics pace and Rhythm of breathing

Question 4

Ventral resp group in medulla oblongata plays a role in what

Answer 4

Forced breathing so when Strenuous breathing is required

Question 5

The pons also in the brain stem contains what two centres

Answer 5

Pneumotaxic and apneustic

Question 6

Pneumotaxic in the pons does what

Answer 6

Fine tunes breathing rhythm and prevents lung over inflation

Question 7

Apneustic centre in pons does what

Answer 7

Prolongs inspiration (slow deep breathing) and breath holding

Question 8

Chemoreceptors are sensors that respond to what

Answer 8

Respond to changing levels of Co2, H+ and O2 in arterial blood

Question 9

Chemoreceptors are found in what 2 things

Answer 9

Central and peripheral

Question 10

Central chemoreceptors are found where

Answer 10

CNS, so in medulla oblongata

Question 11

Peripheral chemoreceptors are found where

Answer 11

Carotid arteries of the neck (carotid bodies) and aorta exiting near the heart (aortic bodies)

Question 12

What is the most potent chemical influencing rate rhythm and depth

Answer 12

co2

Question 13

What 4 things controls breathing

Answer 13

(Activity of nerves in) hypothalamus, medulla oblongata, pons and stimulation of chemoreceptors