. The anatomy of the frog. Frogs -- Anatomy; Amphibians -- Anatomy. 174 THE NERVOUS SYSTEM. [Gaskell has proved that this nerve contains both sympathetic and vag-al elements, and that it is therefore really a vago-sympathetic] The branches Fig. 116. and commvuiica- tions of the pneu- mogastric nerve are :— a. Communica- tions between the ganglion of the pneumogastric and sympathetic. the Right half of skull of l{aita esculeiita, seen from with // Optic nerve. /// Motor oculi nerve. IV Trochlear nerve. rN Root of the trigeminal nerve. Vn Gasserian ganglion. vs Sympathetic nerve. ri AMucens nerv
. The anatomy of the frog. Frogs -- Anatomy; Amphibians -- Anatomy. 174 THE NERVOUS SYSTEM. [Gaskell has proved that this nerve contains both sympathetic and vag-al elements, and that it is therefore really a vago-sympathetic] The branches Fig. 116. and commvuiica- tions of the pneu- mogastric nerve are :— a. Communica- tions between the ganglion of the pneumogastric and sympathetic. the Right half of skull of l{aita esculeiita, seen from with // Optic nerve. /// Motor oculi nerve. IV Trochlear nerve. rN Root of the trigeminal nerve. Vn Gasserian ganglion. vs Sympathetic nerve. ri AMucens nerve. vin Facial nerve. y m Auditory nerve. A-l-3 Pneumogastric and glossopharyngeal nerves. system (Fig. 111 /S)j), which again connect it with the Gasserian gan- glion of the tri- geminal nerve (see sympathetic system). b. [The Ramus cnianeus dorsalis (Fischer) is considered by Stan- nius and Fiirbringer to be the homologue of the liaiiiiis anricnlaris ; it passes outwards between the digastricm and tenqwralis to be distributed in the skin of the suprascapular region. This nerve is the persistent portion of the N. lateralis nervi vagi of the tadpole.] c. During its course over the petroliijoidei the vagus gives off a few twigs (Fig. 114 pp)^ which form a fine plexus to supply these muscles and the pharynx [also a twig to the trachea, according to Hoffmann]. d. The Bawns accessories (Fiirbringer, Hoffmann, Ecker), (Fig. 114 AT) is usually a single small nerve which runs between the intertransversarii muscles and the trajoezitis : it supplies the mider surface of the latter mviscle. e. The Banins scapularis (Hoffmann) is a very slender nerve arising near the liamns accessoritis ; it passes along the under surface of the trapezius to the inner s\u-face of the in/erscapHlaris,'which it Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfe
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