Brain Pathways Flashcards
(22 cards)
Main structure involved in indirect sensory pathway?
Reticular formation
Purpose of reticular formation?
Controls consciousness of sensory inputs
Main 2 motor pathways?
Pyramidal
Extrapyramidal
Actions of the limbic system?
Memory Motivation Olfactory Visceral afferents Emotion, mood
Main 2 anatomical structures involved in the limbic system?
Hippocampus
Amygdala
Action of hippocampus?
Memory formation
Action of amygdala?
Fear response
Main 4 amine neurotransmitter pathways?
Cholinergic
Noradrenergic
Dopaminergic
Seritonergic
Action of cholinergic system? (3)
Motor
Learning/ memory
Attention/ arousal
Anatomical part of motor action of cholinergic system?
Striatal interneurones
Anatomical part of learning/ memory action of cholinergic system?
Medial septal nucleus
Anatomical part of attention/ arousal action of cholinergic system?
Nucleus basilis of Meynert
Cholinergic receptors
Muscarinic - G protein coupled
Nicotinic - Ligand gated ion channel
Action of noradrenergic pathway? (2)
Arousal
Emtoion
What system of the brain is the noradrenergic pathway a part of?
Sympathetic
Receptors for noradrengic pathway?
Alpha and beta adrenoceptors (G protein coupled)
Action of dopaminergic pathway? (3)
Motor
Motivation/ reward
Prolactin release
Anatomical part of motor action of dopaminergic system?
Nigrostriatal
Anatomical part of motivation/ reward action of dopaminergic system?
Mesocortical
Mesolimbic
Recpetors for dopaminergic pathway?
D1 and D2 receptors
Actions of seretonergic pathway? (5)
Mood Sleep Feeding Sensory perception Analgesia
Receptors for seretonergic pathway?
5-HT 1/ 2/ 3
