3. ⢠Forms medulla oblongata
⢠DIFFERENCE FROM SPINAL CORD:
⢠1.lateral walls are everted
⢠2.Roof plate:single layer of ependymal cells covered by
vascular mesenchyme called Pia Mater..Together these
constitute Tela Choroidea
4. ⢠3 motor nuclei
⢠Medial to Lateral
⢠Somatic efferent..Sp.visceral efferent..General Visceral
efferent
5. ⢠Extent: up to mesencephalonâŚcalled som.efferent motor
column
⢠Hypoglossal nerve nucleus supplying muscles of tongue