m Flashcards
primary motor cortex
executes motor commands
pre-motor area
function: instant reaction to external stimuli (red light you break)
located ant to motor cortex (lateral view of brain)
supplementary motor area
Function: pre planning of complex action
located medial aspect of frontal lobe
brocas area
muscles of speech production
frontal lobe?? sulcus name?
cerebellum
coordinate movement act as an error detector and corrector
role of anterior lobe: fine-tuning muscle tone and posture
Middle lobe: regulates skilled acts via coordination of movements
floccondular: controls balance and equilibrium
cerebellum= same side
basal nuceli
phrase ‘stop,go’
Putamen (crust of lentiform): Input nucleus- inhibit the globus pallidus
Globus pallidus (topping of lentiform)- output nucleus-
allows desired movements
caudate nucleus
….
crus cerebri
ant paart of cerebral peduncle?
corticospinal and corticobulbar pathway
Basis Pontis
fibres of corticospinal fibres
pyramids
motor homonculus
lateral- face,head, pharynx
superolateral-hands
medial-lower limb
brain supply
superolateral: middle cerebral artery
anterior cerebral artery: medial aspect of cerebellar hemispheres