Skull Flashcards
Supratentorial cranial nerves
I and II
2 layers of the dura mater
Endosteal, meningeal
Infratentorial cranial nerves
III to XII
4 septa of the menigeal layer of the dura
Falx cerebri, tentorium cerebelli, falx cerebelli, diaphragm sella
Primary motor area
Pre central gyrus
Primary somesthetic area
Poat central gyrus
Broca’s area
Inferior frontal gyus
Wernicke ‘s area
Superior temporal gyrus
Motor aphasia
Broca’s area
Sensory aphasia
Wernicke’s area
Pyramidal system consists of
Corticobulbar, lateral corticospinal, anterior corticospinal
Aka paleocerebellum/ spinocerebellum
Anterior cerebellum
Aka neocerebellum/cerebrocerebellum
Posterior cerebllar lobe
Aka archicedebellum/vestibulocerebellum
Floculonodular lobe
Cerebellar lobe: responsible for coordination of voluntary movements
Posterior
Cerebellar lobe: responsible for coordination of limb movements and regulation of muscle tone
Anterior
Cerebellar lobe: responsible for coordination of paraxial muscles associated with equilibrium
Flocculonodular
Gives rise to greater petrosal nerve. Chorda tympanj, post auricular and parotid plexus
Geniculate ganglion
Efferent limb of facial nerve
Facial nerve
Afferent limb of corneal blink reflex
Nasociliary nerve of ophthalmic division of trigeminal nere
All extrinisc muscles of the tongue are innervated by this nerve except the palatoglossus
Hypoglossal nerve
The palatoglossus is innervated by which nerve
Vagus nerve
Innervates anterior 2/3 of the mucous membrane of the tongue
CN V
Innervates posterior 1/3 (mucous membrane of the tongue)
CN IX
Innervates taste buds on anterior 2/3
CN VII
Innervayes posterior 1/3 (taste buds)
CN IX
Blood vessels of tongue
Lingual artery, lingual vein
Drains post 3rd of tongue
Superficial deep cervical LN
Drains medial ant 2/3 of tongue
Inferior deep cervical Ln
Drains lateral ant 2/3 of tongue
Submandibular LN
Drains apex of tongue
Submental LN
