颅脑的横断层解剖(上)断层解剖学精品PPT课件

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– Inf.cerebellar peduncle
– OΒιβλιοθήκη Baiduex
Pons
Ventral surface
Basilar part
Basilar sulcus
Bulbopontine sulcus
:
Abducent N.
facial N.
vestibulocochlear N.
Middle cerebellar peduncle
Decussation of pyramid: formed by crossing fibers of corticospinal tract
Olive: produced by underlying inf.olivary nucleus
Anterolateral sulcus: rootlets of hypoglossal N. Retroolivary sulcus: rootlets of glossopharyngeal N.
Cerebellum Brain stem
The brain stem
Consists of
Midbrain Pons Medulla
oblongata
Medulla oblongata
Ventral surface
Pyramid: contain corticospinal tract
Trigeminal N.
Pontocerebellar trigone :
the junction of medulla, pons and cerebellum
Pons
Dorsal surface
Sup. cerebellar peduncle
Sup. medullary velum Trochlear N.
The basilaris of brain specimen
The basilaris of brain specimen
The transverse section through optic chiasma
The transverse scan of MRI through optic chiasma
Sup. colliculus visual
reflexes
Inf.colliculus
associated with auditory pathway
Brachium of sup. colliculi
Brachium of inf.
colliculi
The characters of internal structure of brain stem
Medulla oblongata
Lower part (closed part) : Two decussations
Decussationsof pyramid
Decussations of medial lemniscus
Medulla oblongata
Upper part (open part) Appearance : inf.olivary nuculeus inf. cerebellar peduncle
The superior view of dura mate
Enlargement of central canal to form the 4th ventricle floor
Pons
Tegmentum of pons
directed upward continuation of medulla oblongata
Basilar part contain both
vagus N.
accessory N.
Medulla oblongata
Dorsal surface
– Gracile tubercle:
produced by underlying
gracile nucleus
– Cuneate tubercle:
marks the site of cuneate nucleus
Midbrain
Ventral surface
Crus cerebri Interpeduncular
fossa Oculomotor N.
emerge from medial of crus cerebri
Pos.perforated substance
Midbrain
Dorsal surface
longitudinal and transverse fibers intermixed with pontine nuclei
Midbrain
Rectum of midbrain: includes
sup.and inf.colliculi
Cerebral peduncle
– Tegmentum : contain ascending tracts, central gray matter, recticular formation and so on
the visual pathway
The lateral view of brain
The lateral view of brain
The lateral view of brain specimen
The superior view of brain specimen
The superior view of brain specimen
The transverse section of cranium and MRI
The medical college of shandong university
The basic knowledge of cranial anatomy
The brain
Telencephalon Diencephalon
Substentia nigra Crus cerebri :
Pyramidal tract- middle
3/5 of the crus: Frontopontine tractmedial medial 1/5: pariatotempopontine tract lateral1/5
The basilaris of brain
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