8. Nervous receptors

Question 1

name the two type of nervous receptors

Answer 1

1. baroreceptors
2. chemo receptors

Question 2

what is the role of baroreceptors

Answer 2

to detect changes in blood pressure within your body

Question 3

what happens when barorectprors detect a high BP

Answer 3

1. impukses are sent to the medulla oblongata
2. impulse frequency increases down the parasympathetic NS
3. this secretes acetycholine an inhibitory neurotransmitter
4. the SA node impulses decrease to the AVN which slow down the heart rate
5. prevents high blood pressure

Question 4

what happens when chemoreceptors detect a low BP?

Answer 4

1. impulses are sent to the medulla oblongata via increased frequency within sympathetic NS
2. noradrenaline is released
3. this increases impulses from SAN to AVN
4. increases heart rate and therefore blood pressure

Question 5

where are these nervous receptors found?

Answer 5

carotid arteries