Anatomy Terms: medulla oblongata , pneumatic duct , hypobranchial cartilage , habenula , inferior lobe , supraoptic tract , Meckel's cartilage , ethmoid cartilage , optic chiasm , olfactory bulb , postoptic commissure , parachordal cartilage , hypophysis , intermediate hypothalamus , swim bladder , vagal lobe , trabecula communis