ClipArt ETC
External ear and muscles.

External Ear and Muscles

External ear and muscles.

The eyelids separated, and viewed from behind. Labels: a, the lachrymal gland; b, the ducts from the lachrymal gland; c, the mouths of these ducts; d, the puncta lachrymalia; e, the meibomian glands, which secrete the oily fluid.

Eyelids, Viewed from Behind

The eyelids separated, and viewed from behind. Labels: a, the lachrymal gland; b, the ducts from the…

The eyelids viewed from before; a,a, the lachrymal canals; b, the lachrymal sack. The lachrymal sac is a bag of an oval shape, fixed to the end of the double canal, and lies in a depression of the nasal bones. It terminates in the tube called the duct, which passes through a hole made for it, in the bones of the nose, and opens into the nostril.

Eyelids, Viewed from the Front

The eyelids viewed from before; a,a, the lachrymal canals; b, the lachrymal sack. The lachrymal sac…