FINAL PRACTICE

Optic canal - Optic nerve

Superior orbital fissure - Oculomotor, trochlear, abducens

Foramen rotundum - Maxillary

Carotid Canal - Internal carotid artery

Foramen Spinosum - Mandibular

Internal auditory meatus - Facial nerve, vestibulocochlear nerve

Jugular foramen - Vagus nerve, accessory nerve, sigmoid sinus

Foramen magnum - Medulla

Hypoglossal canal - Hyperglossal nerve

Foramen ovale - Mandibular

turkish saddle, greater wing, lesser wing & pterygoid plates

corona radiata

Pituitary gland

Protected by sphenoid

Superior colliculous visual inerior hearing

Choroid plexus makes csf

Falx cerebri
Falx cerebelli
Tentorium cerebelli
Diaphragm sellae (near pituitary gland)

Tracts of the spinal cord

Dorsal columns - proproception (gracile & cuneate fasciculus) decussate in medulla

Corticospinal - Voluntary movements decussate in medullary pyramids

Spinothalamatic - Pain and temp decussates at ventral white commisure

• Olfactory nerve (CN I) = smell = brown

• optic nerve (CN II) = grey = vision

• oculomotor nerve (CN III) = green = eye movements & pupil

• trochlear nerve (CN IV) = pink = lateral eye movements

• trigeminal nerve (CN V) = blue = Facial scences

• abducens nerve (CN VI) = orange = abducts eyes

• facial nerve (CN VII) = purple = facial and neck muscles anterior 2/3 tongue

• vestibulocochlear nerve (CN VIII) = yellow = hearing and balance

• glossopharyngeal nerve (CN IX) = gdark blue = speech & saliva

• vagus nerve (CN X) = green = swallowing, digestion, cardiac

• accessory nerve (CN XI) = not shown = head and shoulders

• hypoglossal nerve (CN XII) = blue = tongue muscles

Lobes & fissures of cerebellum

Lobes: anterior (unconsious), posterior (consious), flocculonodular (eye movements)

Fissures: primary & posteriolateral

Cerebellar peduncles Superior (efferents), middle (afferents), inferior (both)

cerebrel peduncle = columns of midbrain

Hippocampus VS amygdala

Thalamus & Caudate & Putamen & Internal capsule & red nucleus & crus cerebri & corticospinal fibres

Caudate & putamen & external globus palidus & internal gobus palidus & mamilary bodies

Subthalamatic nucleus

Indirect & Direct Pathways

• Indirect pathway inhibits the subthalmaus and supresses signalling through the thalamus and movement

• Direct pathway disinhibits thalamus making it easier to fire

Circle of willis