The trigeminal nerve (V) arises from the lateral aspect of the mid pons.
The abducens (VI), facial (VII) and vestibulocochlear (VIII) nerves arise from the pontomedullary junction: VI is close to the midline, VII and VIII arise laterally in the cerebellopontine angle.
The glossopharyngeal (IX), vagus (X) and accessory (XI) nerves arise from the medulla by a longitudinal series of rootlets lateral to the olive.
The hypoglossal (XII) nerve also arises from the medulla by a longitudinal series of rootlets, but medial to the olive - between it and the pyramid.
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