Part I Head, Neck, Brain and Spinal Cord

Lower brainstem and cervical part of the spinal cord – from behind

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M
P
Vagus nerve (X)
Posterior margin of lesser wing of sphenoid
Floor of fourth ventricle
Vertebral artery
Posterior spinal arteries within arachnoid mater
Hypoglossal nerve (XII)
Median groove
Posterior cranial fossa
Tentorium cerebelli (reflected 16 anteriorly)
Middle cranial fossa
Inferior colliculus
Jugular foramen
Vestibulocochlear nerve (VIII)
Crista galli of ethmoid bone
Superior medullary vellum
Margin of foramen magnum
Transverse sinus
Lingula
Anterior cranial fossa
Facial nerve (VII)
Medulla oblongata
Cerebellar peduncle
Superior colliculus
Trochlear nerve (IV)
Internal acoustic meatus
Glossopharyngeal nerve (IX)
Spinal root of accessory nerve (XI)
Cranial part of accessory nerve (XI)
Falx cerebri
Hypoglossal canal