. The cyclopædia of anatomy and physiology. Anatomy; Physiology; Zoology. CETACEA. 58;"). Section of the eye of a Whale. " The tunica conjunctiva (g, g, fig. 274), where it is reflected from the eyelid to the eye- ball, is perforated all round by small orifices of the ducts of a circle of glandular bodies lying behind it. " The lachrymal gland* is small, its use being supplied by those above-mentioned ; and the secretion from them all, I believe to be a mucus similar to what is found in the Turtle and Crocodile. There are neither puncta nor lachrymal duct (duetits ad naaum), so


. The cyclopædia of anatomy and physiology. Anatomy; Physiology; Zoology. CETACEA. 58;"). Section of the eye of a Whale. " The tunica conjunctiva (g, g, fig. 274), where it is reflected from the eyelid to the eye- ball, is perforated all round by small orifices of the ducts of a circle of glandular bodies lying behind it. " The lachrymal gland* is small, its use being supplied by those above-mentioned ; and the secretion from them all, I believe to be a mucus similar to what is found in the Turtle and Crocodile. There are neither puncta nor lachrymal duct (duetits ad naaum), so that the secretion, whatever it be, is washed off into the water. " The muscles which open the eyelids are very strong; they take their origin from the head, round the optic nerve, which in some requires their being very long, and are so broad as almost to make one circular muscle round the whole of the interior straight mus- cles of the eye itself. They may be divided into four; a superior, an inferior, and one at each angle; as they pass outwards to the eye- lids, thev diverge and become broader, and are inserted into the inside of the eyelids almost equally all round. They may be termed the dilatores of the eyelids; and, before they reach their inseition, give off the external straight muscles, which are small, and inserted into the sclerotic coat before the transverse axis of the eye ; these may be named the elevator, depressor, adductor, and abductor, and may be dissected away from the others as distinct muscles. Besides these four going from the muscles of the eyelid to the eye itself, there are two which are larger, and enclose the optic nerve with the plexus. As these pass outwards they become broad, may in some be divided into four, and are inserted into the sclerotic coat, almost all round the eye, rather behind its transverse axis. " The two oblique muscles are very long; they pass through the muscles of the eyelids, are continued on to the globe of the ey


Size: 1496px × 1671px
Photo credit: © Central Historic Books / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., bo, booksubjectanatomy, booksubjectphysiology, booksubjectzoology