Volume 1
On the anatomy, physiology, and pathology of the chimpanzee / by Charles F. Sonntag.
- Sonntag, Charles F. (Charles Frederick), -1925
- Date:
- 1923
Licence: In copyright
Credit: On the anatomy, physiology, and pathology of the chimpanzee / by Charles F. Sonntag. Source: Wellcome Collection.
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![plexus, which breaks up into gastric (G.P), splenic (S.P), and hepatic (H.P) plexuses. It sends off the superior mesenteric (S.M.P), left renal (L.R.P) and left suprarenal (L.S.R.P) plexuses. F. Inferior Mesenteric Plexus (I.M.P):—A well-marked ganglion (I.M.G) is present. It supplies the descending colon and rectum and communicates with the left abdominal sympa- thetic cord. The right coeliac ganglion (R.S.G) receives the great splanchnic nerve. It is connected to the left ganglion by several communicating nerves. Offshoots go into the coeliac, right renal and superior mesenteric plexuses. G. The right and left renal plexuses (L.R.P. and R.R.P) are offshoots of the corresponding halves of the solar plexus. They receive splanchnic nerves and branches from the abdominal sympathetic cords. H. The ovarian plexuses (O.P) are offshoots of the abdominal sympathetic ganglia. The Eye and its Appendages (text-fig. 27). The skin over the supraorbital margin has a few long hairs running in different directions, but there are no pronounced eyebrows. The upper lid is longer than the lower, and has longer cilia. The Meibomian glands form projections on the back of the lid, but a strip of darkly-coloured conjunctiva prevents them from forming ridges on the ocular surface of the lid. The capacious lacus lachrymalis is lined by black conjunctiva. No caruncula is present, but the plica semilunaris is well marked. The bulbar conjunctiva is dark in colour, but only the marginal part of the palpebral conjunctiva is pigmented. The lower lachrymal papilla is larger than the upper one, and the internal tarsal ligament is larger than the lateral tarsal raphe. The lachi'ymal gland is small and flat, and consists of two parts as in Man. The ducts open into the superior conjunctival fornix. And the naso-lachrymal duct opens below the inferior turbinate bone into the middle of the inferior nasal meatus (PI. II. fig. A). The gland is deeply embedded in thick fat. The fascia is very strong, and is attached as in Man to the tarsal ligaments. Orbital Muscles'.—The levator palpebrce superioris arises as in Man. But it has only two insertions—into the tarsus and conjunctiva—instead of three. It is supplied by the third nerve as in Man. The frontal nerve is far internal to it. The superior oblique arises as in Man, and the trochlea is well developed. Its long, fan-shaped tendon is inserted into the eyeball distinctly to the outer side. It passes under the superior rectus. The fourth nerve supplies it by three branches. The rectus superior arises, and is inserted, as in Man. As its insertion the ocular surface plays upon the anterior border of the [93]](https://iiif.wellcomecollection.org/image/b2982123x_0001_0095.jp2/full/800%2C/0/default.jpg)
