. A treatise on anatomy, physiology and hygiene : designed for colleges, academies and families. rr;^ . __M ?\-^.y I / ^-^WSUliA r^ Y^/^^m^^^^f^ ANATOMY OF THE NERVOUS SYSTEM. 345 766. The ganglia mny be considered as distinct centres,giving ofF bmnches in four directions ; namely, the superior,or ascending, to communicate with the ganglion above ; theinferior, or descending, to communicate with the ganglion^gIq-w ; the external, to communicate with the spinal nerves ;and the internal, to communicate with the sympathetic fila-ments. It is generally admitted that the nerves that pass fromthe ga

---

. A treatise on anatomy, physiology and hygiene : designed for colleges, academies and families. rr;^ . __M ?\-^.y I / ^-^WSUliA r^ Y^/^^m^^^^f^ ANATOMY OF THE NERVOUS SYSTEM. 345 766. The ganglia mny be considered as distinct centres,giving ofF bmnches in four directions ; namely, the superior,or ascending, to communicate with the ganglion above ; theinferior, or descending, to communicate with the ganglion^gIq-w ; the external, to communicate with the spinal nerves ;and the internal, to communicate with the sympathetic fila-ments. It is generally admitted that the nerves that pass fromthe ganglia are larger than those that entered them; as ifthey imparted to the nerve some additional power. 767. The branches of distribution accompany the arterieswhich supply the different organs, and form communicationsaround them, which are called plexuses, and take the nameof the artery with which they are associated. Thus we havethe mesenteric plexus, hepatic plexus, splenic plexus, &c. Allthe internal organs of tlie head, neclv, and trunk, are suppliedwith branches from the sympatheti

---

Size: 1370px × 1824px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., bo, booksubjectanatomy, booksubjecthygiene, booksubjectphysiology