APPENDAGES OF THE EYE 



675 



of the skin only in that its subcutaneous tissue contains no fat. The 

 derma is loosely connected with the muscle by a wide-meshed afeolar 

 tissue. Fine hairs are distributed over the cutaneous surface, their 

 follicles extending well down through the derma. Small sebaceous 



FIG. 567. VERTICAL SECTION THROUGH THE UPPER EYELID. 



a, sweat glands; ai, primary tarsal arch; as, secondary tarsal arch; 6, conjuncti- 

 val epithelium; c, eyelashes; co, rugated portion of the conjunctiva; d, epidermis; 

 e, fine hairs; /, process of the levator palpebrae superioris which is inserted into the 

 skin; g, Meibomian gland; h, internal angle of the margin of the lid; I, levator palpe- 

 brae superioris; m, duct of a Meibomian gland; o, orbicularis palpebrarum muscle; 

 p, superior palpebral muscle of Miiller; r, ciliary muscle of Riolan; s, glands of 

 Moll; t, fibrous tissue of the tarsus; v, external angle of the margin of the lid; w, 

 posterior tarsal glands; z, sebaceous glands. (After Fuchs.) 



