sleep and circadian rhythms

Question 1

sleep is thought to be an active inhibitory process that originates in the

Answer 1

pons

Question 2

the reticular formation (an area of the brainstem thought to be linked to sleep) sens projections to the

Answer 2

thalamus and higher corticol areas

Question 3

many neurons in the reticular formation are ………

Answer 3

serotogenic

inhibit seratonin

Question 4

activity in the SCN (suprachiasmatic nucleus) in the hypothalamus stimulates the release of what?

Answer 4

melatonin from the pineal gland

which is thought to increase feelings of sleepiness

Question 5

orexin

Answer 5

neurotransmitter required for wakefulness

Question 6

orexin neurons are active (and firing) during wakefulness and stop firing during

Answer 6

sleep

Question 7

EEG

Answer 7

electroencephalogram