Other Flashcards
What is volume (amplitude) measure in?
Decibel
What is pitch (frequency) measure in?
Hertz
What is neurotransmission dependant on?
Transmitter synthesis
Vesicle fusion
Occupation of post synaptic receptors
What is neurotransmission modulated by?
Transmitter re-uptake
Occupation of presynaptic receptors
What are the two main peripheral neurotransmitters?
Acetylcholine (somatic and parasympathetic)
Noradrenaline (sympathetic)
What are the two MAJOR neurotransmitters in the CNS and ar they inhibitory or excitatory?
Excitatory- glutamate
Inhibitory- GABA and glycine
What are the four main modulatory neurotransmitters in the CNS.
Dopamine
Serotonin
Noradrenaline
Acetylcholine
What is dopamine important in?
Cognition
Excess leads to schizophrenia
What is acetylcholine important in?
Cognition and memory
Deficiency may lead to Alzheimer’s
Serotonin and noradrenaline are important in……
Mood
Deficiency leads to depression
Where are pyramidal cells found?
Cerebrum
Where are purkinje cells found?
Cerebellum
What are the three main spinal tracts?
Dorsal column
Spinothalamic
Coticospinal (motor)
Describe the dorsal column tract?
What’s it for and what is it split into?
For proprioception Gracile (medial-lower body) Cunate (lateral-upper body) First neurone enters dorsally Synapse at medulla then deccusates Synapse at hypothalamus 3rd neurone travels to sensory cortex
Describe the spinothalamic tract
What is it for?
Pain and temp Neurone enters dorsally Synapse in spinal cord then decussates 2nd synapse at thalamus Third neurone goes to sensory cortex