Neuromuscular Physiology Flashcards
What is the increasing level of intergration starting at the lowest
Spinal Cord level
Subcortical level
Cortical level
What is the brain heirarchy starting at the bottom?
spinal cord and medulla
limbic system
cerebrum
What is the spinal cord responsible for?
Reflex and vegetive function
Role of limbic system
Emotions and allocortex
Role of cerebrum
Intellect and neocortex
What is the hypocampal system made up of?
Limbic cortex
Hippocampus
Formix
Mamillary body
Role of hypocampal system?
Memory formation
What is the amygdaloid system made up of?
Amygdala, olfactory bulbs, medial formation bundle
What is the role of the amygdaloid system
Emotional expression + sexual drive
strengthen memories
What is noradrenaline used for?
ANS
stress/arousal/ mood
post ganglionic NT in sympathetic Nervous system
from CNS to Coeruleus
What is the route of serotonin?
Raphe complex in brain stem projects to hypothalamus to the limbic system then to the cerebellum then to the spinal cord
where is dopamine relevant?
parkinsonism
schizophrenia
tourettes
Where is acetylcholine used
Neuromuscular joints
What is ACH used for?
Perception
memory motivation
Cognition
Where is cerebrospinal fluid located
Travels through cerebral ventricles down the spinal cord
retrieved at nerve roots, olfactory tracts, superior saggital sinus , arachnoid vili
Role of CSF
Cushioning
Lymphatic and extra line of defence against altered homeostasis
What is the blood brain barrier
Tight basement membrane and tight capillary junction with no openings/gaps
What is the role of the blood brain barrier
Extra line of defence
prevention of changes in ionic conc. affecting brain excitability
When is the BBB permeable to antibodies
When it is inflamed the leakage increased
Where is there no BBB at
Vomiting centre- needs to detect toxins
Hypothalamus - needs to sense osmolality
