metencephalon isthmus mesencephalon
Marginal zone
Ventricular zone intermediate Pia mater
Otic vesicle neuromeres
Cranial nerve 3
Jugular ganglion Superior ganglion Otic vesicle Endolymphatic duct Cranial nerve 7 and 8
Roots of hypoglossal nerve
Ant semicircular canal Post semicircular canal
Friorep’s ganglion
Roots of hypoglossal ganglion
Basilar artery
Semilunar ganglion
Sensory root of trigeminal
Cranial nerve 3
Cranial nerve 11
Ant cardinal vein Cranial nerve 9
Pharyngeal groove