Susie Chapter 14 Flashcards
most of us sleep for about __ hours per night
8
the __ __ cycle is an endogenous rhythm that gradually becomes locked to the day-night cycle through the __ years of life, this is called __ __
sleep-wake, first, circadian rhythm
the sleep pattern is controlled by cells in the __ just above the optic chiasm called the __ __
hypothalamus, suprachiasmatic nucleus (SCN)
what is one unusual part about the cells in suprachiasmatic nucleus?
they have lots of synapses between their dendrites to synchronise their firing together
the free-run cycle is about __ hours
25
when awake, what kind of electrical activity does our brain have?
low-amplitude
on slow-wave sleep stages. there is __ in amplitude and __ in frequency
increase, decrease
when you are asleep, your __ neurons may be actively inhibited, while your neurons controlling __ and __ __ can still work normally
motor, respiration, heart rate
on which stage do we dream and our eyes move rapidly?
rapid eye movement (REM)
do animals experience REM sleep?
yes
REM sleep occurs about __ times each night.
4
is sleep mostly for the brain or body?
the brain
an NT called __ is in a molecular chain reaction that takes us through various sleep stages
adenosine
the name of the fruit fly that has been studied on neurogenetics
drosophila
the two genes that produce proteins that interact together to regulate their own synthesis is called __ and __
per and tim
