All about the brain Flashcards
Soma
Nucleus
Axon
Sending impulses down neuron
Myuclin Sheeth
Protect cell & Speed up messages
Node of Ranvier
Maintains speed
Dendrites
Detects messages
Terminal
Transmit info
Sensory neurons
Sense info (afferent)
Motor neuron
Allows us to move (efferent)
Interneuron
Spinal cord
Terminal Button
Contain synthetic vessels
Synthetic Bessels
Hold nerons
Excitatory NT
Allows next neuron to fire
Acetylcholine
Controls muscle movement, learning, and memory
Too much- muscle weakness
Too little- Alzheimers
Dopamine
Emotion & reward system
Too much- Schizophrenia
Too little- Parkinsons
Norepinephrine
Fight or flight response
Too much- anxiety
Too little- depressed mood
Glutamate
Excitatory NT & memory
Too much-Migraines/seizures
Too little- ADHD like syptoms
Inhibitory NT
Stop/prevent a neural impuls
GABA
Help calm down
Too much- Shortness of breath & numbness
Too little- Tremors & insomnia
Serotonin
Regulate mood, hunger, and sleep
Too much- Muscle stiffness & seizures
Too little- Depression
Peripheral NS
Outside
Autonomic
Automaticly
Somatic
Volentary
Sympathetic NS
Fight or Flight
Parasympathetic
Help relax the body
CNS
Main decision maker