Flashcards in brain stuff Deck (33):
basic functions of nervous system?
motor (control of skeletal muscle), sensory (senses), and automatic (reflexes)
higher basic funct of the nervous system?
cognition, emotions, consciousness
= towards brain
= away from brain --> to neuromuscular junction
aka lower motor neurons (LMN)
involuntary twitches of skel muscle
decrease in tone (contraction) of skel muscle
decrease in muscle stretch reflex
position/vibration/touch = fast
stimuli: mechanical stress, baroreceptors, sound waves, gravity
thick myelin sheath = fast/slow?
on the sides of temples!!
"tempo" = think auditory
& wernicke's area (speech interpretation...)
prefrontal cortex (complex thinking =executive funct, surprises/direct other areas of brain),
Broca's area (speech production)
"piranha" bite you on TOP of your head, you FEEL pain.
somatosensory cortex - receiving sensory signals from skin,
& spatial manipulation
picture octopus with eyes on its tentacles.
which sense does not cross over? (R to L, L to R)
smell!! ipsilateral same side
left hemisphere (= R hand dominate) includes what features?
how does 2 hemisphere communicate?
old brain consists of
is part of brains stem, structure runs up
send info from brain stem to other parts of the brain
filter and send info str8 to thalamus
alertness & motivation
must have BALANCE!!
balance voluntary movements
alcohol makes you lose balance bc of it affect this.
cross over point for nerves
medulla and pons -> control HR, breathing,
consists of : pon, medulla, reticular formation (pavlov's really freaking mad)
above brain stem
relay station of eyes and ears info
no smell go thru!!
position sense info
= info such as how much muscle is stressed
this info get send into the cerebellum and thru feedback infos, cerebellum adjust muscle movements accordingly
looking at "ponds" are relaxing = pons
regulate waking & relaxing
major role of motor functions for proper movement, cognition, emotion
deep inside brain, = a group of subcortical nuclei
small dopey PARKs the car while tall dopey SKI!!
low level = parkisons's
high level = schizophrenia
"sex is messy from everywhere down low"
release from lots of nuclei in brain stem to all over brain!!
"sir rotten is in a rotten mood"
low level of serotonin = depression
GABA (cns) Glycine (pns)
most common excitatory NT.
"running door with fin looking happy"
limbic system includes:
hippo wearing HAT
regulating emotion!! storage/retrieval of mem, esp if ties to emotion
hippocampus key role?
"you need a COMPASS when you cant RECALL how to get home"
forming new mem. convert STM -->LTM
if destroyed cant make new mem = anterograde amnesia
cant make new mem! old ones remained