Parts of the brain
The post office of the brain, processes sensory information before sending it off to somewhere else in the brain to be processed.
Thalamus
Contains the brain and the spinal cord
Central nervous system
Released as a reward. Helps with planning, motivation, and movement.
Dopamine
Waves during calm wakefulness 8-12 Hz
Alpha waves
Carlos has a lot of trouble falling asleep at night. He can lay awake at night for hours without falling asleep. He also wakes up during the night and cannot fall back asleep. What sleep disorder might he have?
Insomnia
Henry is having trouble with balance. He stumbles quite a bit and has to use a cane to walk longer distances. What part of his brain is causing this behavior?
Cerebellum
Paul decides to go for a swim. What part of the nervous system is helping him do the backstroke (voluntary movement)?
Somatic nervous system
Mood regulator, content. Aids appetite and sleep
Serotonin
Stage of sleep where muscles are paralyzed, when dreaming occurs. Sawtooth waves, brain activity is similar to that of being awake
REM Sleep
Occurs in infants when an infant stops breathing during sleep and dies. Could be caused by premature birth, hyperthermia, and smoking in the home.
SIDS or Sudden Infant Death Syndrome
John goes for a run and begins to sweat. When he comes back inside, he realizes he is hungry and, with the a/c blasting, now has goosebumps. What structure in his brain is responsible for this?
Hypothalamus
Sean ate a huge meal. His body digested the food, and he fell asleep. What part of his nervous system was activated during this?
Autonomic nervous system
Triggered during fight or flight, one increases blood oxygen, while the other releases glucose for energy
Epinephrine (adrenaline) and norepinephrine (noradrenaline)
Waves present in the first and second stage of sleep, 4-8 Hz, brain activity is not in sync
Theta waves
There are two different types of this disorder, central and obstructed. Central occurs when the brain doesn't send signals to breathe during sleep where obstruction occurs when the airway is blocked during sleep.
Sleep apnea
While walking to class, Sara's heart rate and blood pressure went up. What part of the brain was responsible for this?
Medulla
After Peter's presentation, he sists back down. His heart rate decreases and he stops sweating. His anxiety levels also decrease. What part of the nervous system is responsible for this?
Parasympathetic nervous system
Inhibition of brain activity, calmness
GABA
Waves that occur during stage 3 sleep, 1/2 to 2 Hz. Large spikes and syncopation in the brain.
Delta waves
Roberto has the urge to move his limbs during sleep. His arms will feel like they are stinging and his legs will tingle. Moving his limbs grants him some relief, but it is hard to fall asleep
Restless Leg syndrome
Keith is on his phone all night long and doesn't feel tired due to the light from his phone telling what part of his brain it is day?
SCN or suprachiasmatic nucleus
Jacob was walking in the woods when he spotted a bear. His heart rate increased, he began to sweat, and he was ready to run. What part of his nervous system was responsible for this?
Sympathetic
Voluntary movements, attention, low levels are linked to Alzheimer's disease, REM sleep
Acetylcholine
The second stage of sleep with delta waves. Contains brief periods of activity called ____ _______ and areas of high amplitude waves that may be triggered by outside sound called ____ _______
Sleep spindles and K-complex
Cameron cannot resist falling asleep when she laughs too hard. She will wake up and begin laughing, only to fall back asleep. She also suffers from cataplexy where she goes limp.
Narcolepsy