CHAPTER VIII

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--

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The Origin of Vertebrates · 第 8 / 24 章