Final Exam Flashcards
Mia wants to take a trip, but she is worried about jet lag. What advice would you give her?
Traveling to the west is easier
Professor Rhine tells her class that the pineal gland releases melatonin. True or False
True
Young children are more likely to be “morning people” than older adults. True or False
True
Professor Steinberg tells her class that during normal sleep cycle, a person will progress from ____
stage 1 to 4 at the beginning of the night. Later on, the cycle is stage 1 and 2 and then REM
based on research it has been determined that the human circadian rhythm appears to be
Just over 24 hours
Sometimes people find themselves unable to move their postural muscles immediately after awakening. Why?
part of the brain is still asleep
An EEG displays
a net average of all the neurons potentials
A recent hypothesis proposed that the role of REM is
to shake the eyeballs back and forth in order to get sufficient oxygen to the corneas of the eyes
It appears from research with cats that one function of the messages from the pons to the spinal cord is to prevent us from
acting out our dreams
Suppose you fell into a cave and lost your watch. Without any time cues, your circadian rhythm would
remain relatively stable
Les will be taking a trip, and he is worried about how to handle his jet lag. What advice would you give him?
He needs to sleep in a dark room
During ____, cells in the pons send messages that inhibit the motor neurons that control the body’s large muscles
REM sleep
Gala is studying for a quiz on circadian rhythms. She writes in her notes that the two proteins that influence circadian rhythms by building up during the day and declining during sleep are
PER and TIM
Mose has been told that he sleep walks. When is he more likely to do this?
During SWS
Temporary sleep deprivation causes the body to respond in a similar manner as it does to being ill. True or False
True
During REM sleep, the EEG shows
Irregular, low-voltage fast waves
What is the best way to determine if an individual who claims to never dream does, in fact, have dreams
wake them up during REM sleep and ask them if they have been dreaming
A “Zeitgeber” is an
environmental cue that resets a biological clock
Researchers have demonstrated that the expression of the SCN genes can be changed through
exposure of the eyes to light
Orexin, produced by neurons in the hypothalamus, appears to be necessary for
Staying awake
The tendency of water to flow across a semipermeable membrane from the area of low solute concentration to the area of high concentration is termed
osmotic pressure
Output from the paraventricular nuclear acts on the
Lateral hypothalamus
The brain gets part of its information regarding low osmotic pressure from
receptors round the third ventricle
Obese people tend to produce more insulin than people or normal weight. True or False
True