Olfactory tract
Mamillary bodies
Optic nerve Oculomotor nerve (III)
Optic chiasma Optic tract
Trochlear nerve (IV)
Cerebral peduncle
Superior pontine sulcus
Basilar sulcus
Trigeminal nerve (V) Inferior pontine sulcus
VI
Glossopharyngeal nerve (IX) Vagus nerve (X)nerve Hypoglossal rootlets (XII) Hypoglossal nerve (XII)
Olive Pyramidal decussations
Spino-medullary junction Pyramid
VII VIII
Pons Middle cerebellar peduncle
Accessory nerve (XI)
Brainstem (ventral view)
Pineal body Thalamus
Medial
Geniculate bodies
Lateral Corpora
Superior colliculus
quadrigemina Inferior colliculus
Inferior quadrigeminal brachium Superior Middle
Trochlear nerve (IV)
Cerebellar peduncles
Inferior Rhomboid Fossa
Dorsal median sulcus
Tuberculum cuneatus Tuberculum gracile Fasciculus cuneatus Fasciculus gracile
Brainstem (dorsal view)
Rhomboid Fossa (close-up) Trochlear nerve (IV) Trigeminal nerve (V) Superior medullary velum Medial eminence Sulcus limitans Facial colliculus Area vestibularis Dorsal median sulcus
Striae medullaris Area vestibularis Hypoglossal trigone Vagal trigone Tuberculum cuneatus Tuberculum gracile