dorsal surface of the brain stem rhomboid fossa Median sulcus正中沟 Sulcus limitans界沟 Vestibular area前庭区 overlies vestibular nuclei Acoustic tubercle听结节 overlying dorsal cochlear nucleus Media| eminence内侧隆起 Striae medullares髓纹 Facia| colliculus面神经丘 overlies nucleus of abducent n. and genu of facial nerve
Median sulcus 正中沟 Sulcus limitans 界沟 Vestibular area 前庭区 overlies vestibular nuclei Acoustic tubercle 听结节 overlying dorsal cochlear nucleus Medial eminence 内侧隆起 Striae medullares 髓纹 rhomboid fossa Facial colliculus面神经丘: overlies nucleus of abducent n. and genu of facial nerve dorsal surface of the brain stem
dorsal surface of the brain stem rhomboid fossa Hypoglossal triangle舌下神经三 A: overlying hypoglossal nucleus Vagal triangle迷走神经三角 overlies dorsal nucleus of vagus nerve Area postrema最后区:lies between the vagal triangle and gracile tubercles Locus ceru|eus蓝斑 at the upper end of Sulcus limitans 界沟上端
dorsal surface of the brain stem rhomboid fossa Hypoglossal triangle 舌下神经三 角: overlying hypoglossal nucleus Vagal triangle 迷走神经三角: overlies dorsal nucleus of vagus nerve Area postrema 最后区：lies between the vagal triangle and gracile tubercles Locus ceruleus 蓝斑 at the upper end of Sulcus limitans 界沟上端
Fourth ventricle第四脑室 position Lie between the Pons(脑桥), medulla Oblongata(延髓) and cerebellum (in front of cerebellum and posterior to the pons and medulla oblongata
Fourth ventricle 第四脑室 Lie between the Pons( 脑桥), medulla Oblongata( 延髓) and cerebellum (in front of cerebellum and posterior to the pons and medulla oblongata ). position
Fourth ventricle Floor-- rhomboid fossa Roof: Anterior part superior cerebellar peduncle 小脑上脚 superior medullary velum 上髓帆
Fourth ventricle Floor-- rhomboid fossa Anterior part superior cerebellar peduncle 小脑上脚 superior medullary velum 上髓帆 Roof：
Fourth ventricle Roof: Posterior part inferior medullary velum 下髓帆 tela choroidea of fourth Ventricle第四脑室脉络组织 choroid plexuses of fourth Ventricle第四脑室脉络丛 produce the cerebros pinal Fuid(csF)产生脑脊液
Fourth ventricle choroid plexuses of fourth Ventricle 第四脑室脉络丛 produce the cerebrospinal Fluid (CSF) 产生脑脊液。 Posterior part inferior medullary velum 下髓帆 tela choroidea of fourth Ventricle 第四脑室脉络组织 Roof：