neural control Flashcards

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1
Q

breathing is controlled by?

A

pons and medulla (brainstem)

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2
Q

what is basal breathing?

A

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

the medulla constantly spontaneously fires inspiratory neurons

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3
Q

what does the PONS do in breathing?

A

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

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4
Q

function of hypothalamus

A

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

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5
Q

pituitary gland=

A

has a posterior and anterior lobe

it communicates with hypothalamus to alter hormone secretion

anterior= indirect vvia hormones
posterior= direct via synaptic transmission
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6
Q

indirect control

A

indirect control involves hormons released from specilaised nurons of the hypothalamus

these hormones travel to the anterior pituitary gland via blood vessels

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7
Q

cortisol release

A

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

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8
Q

posterior pituitary gland

A

controls directcontrol via synaptic transmission

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

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9
Q

lateral hypothalamus

A

role in hunger

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10
Q

ventromedial hypothalamus

A

role in satiety

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