neural control

Question 1

breathing is controlled by?

Answer 1

pons and medulla (brainstem)

Question 2

what is basal breathing?

Answer 2

baseline breathing to keep us alive
this is controlled by the dorsal respiratory region of the medulla

the medulla constantly spontaneously fires inspiratory neurons

Question 3

what does the PONS do in breathing?

Answer 3

acts like a switch as the neurons are costantly firing you need to tell them to stop at some point

this increases the respiratory rate thru the pneumotaxic area

Question 4

function of hypothalamus

Answer 4

hormone production
homeostatis
organisnig survival behaviours

contains the biological clock

control of emotion including rage and fear and pleasre

controls automatic NS

controls endocrine system via pititury gland

Question 5

pituitary gland=

Answer 5

has a posterior and anterior lobe

it communicates with hypothalamus to alter hormone secretion

anterior= indirect vvia hormones
posterior= direct via synaptic transmission

Question 6

indirect control

Answer 6

indirect control involves hormons released from specilaised nurons of the hypothalamus

these hormones travel to the anterior pituitary gland via blood vessels

Question 7

cortisol release

Answer 7

paraventricular nucleus secretes CRH which stimulates anterior gland to release ACTH -
this enters the blood stimulating the adrenal cortex ti reklease cortisol and inact a stress response

Question 8

posterior pituitary gland

Answer 8

controls directcontrol via synaptic transmission

the hypothalamus produces posterior hormones and directly controls their scretion but are released by posterior gland

Question 9

lateral hypothalamus

Answer 9

role in hunger

Question 10

ventromedial hypothalamus

Answer 10

role in satiety