CHAPTER VIII. The Segments Belonging to the Trigeminal Nerve-Group

THE SEGMENTS BELONGING TO THE TRIGEMINAL NERVE-GROUP

The prosomatic segments of the vertebrate--Number of segments belonging to the trigeminal nerve-group--History of cranial segments--Eye-muscles and their nerves--Comparison with the dorso-ventral somatic muscles of the scorpion--Explanation of the oculomotor nerve and its group of muscles--Explanation of the trochlear nerve and its dorsal crossing--Explanation of the abducens nerve--Number of segments supplied by the trigeminal nerves-- Evidence of their motor nuclei--Evidence of their sensory ganglia-- Summary 257