ANATOMY OF REGIONS. 
205 
and shows itself slightly only in cases of general infiltration of 
the eyelids. 
2°. The orbicularis palpebrum is very thin. It lays on the 
fibrous frame. Its fibres overlap the lids and are attached upon 
the bones forming the orbits. As point of origin of their fibres, 
we may consider a small tendon extending from the lacrymal 
tubercle at the nasal angle of the eye, and from this point the 
fibres surround the eyelids in assuming a direction parallel to the 
free border. They are continued in each one at the external com¬ 
missure of the eye. A small muscular fasciculus, the fronto su¬ 
perciliary muscle, attached on the frontal bone, runs obliquely 
outwards and downwards to implant itself upon the superior 
fibres of the sphincter, near the nasal angle. In contracting, it 
uncovers this angle and increases the concavity of the upper lid. 
3°. Under the orbicularis is found a layer of quite loose 
cellular tissue, separating it from the fibrous frame. 
This last, more marked on the superior lid than on the infe¬ 
rior, is attached by its adherent border to the edges of the orbit, 
and is continual with the periosteum and the occular sheath. Its 
free border supports the tarsus (cartilage) on a level with the 
commissures. The fibrous layer becomes so thick and strong that 
Winslow has named it the ligament of the tarsi, a name which it 
deserves to some extent. 
4°. The tarsi form to the lids a cartilaginous frame repre¬ 
senting elongated pieces about nine millimeters wide. The supe¬ 
rior tarsus is stronger than the inferior, which is almost straight, 
while the former is much convex. The internal face of the car¬ 
tilages is hollowed with small grooves, perpendicular to the free 
border of the lids, in which the glands of emibonius are received. 
These are small glands in groupes, which secrete a peculiar onctu- 
ous humour, always rare in ordinary circumstance, but whose 
quantity increases considerably in infiamed conditions of the con¬ 
junctiva and in serious morbid states, as in enteritis, for instance. 
5°. We had made a special layer of the loose connective tis¬ 
sue which unites the fibrous layer of the tendons of the elevator 
proper of the inferior lid, as in cases of serous infiltration, after 
external blows, this tissue assumes a great importance. Scarcely 
