The =panniculus carnosus= is well developed and presents two distinct
bands, one of which is inserted into the lower lip, the other into the
scutiform cartilage of the ear.
The =orbicularis oris= is poorly developed. In the upper lip it is
divided centrally, and in the lower it is distinct only near the angles
of the mouth.
The =levator nasolabialis= is wide and undivided, and ends in the upper
lip.
The =levator labii superioris proprius= arises behind the infraorbital
foramen, runs forward under the preceding muscle, and ends in numerous
small tendons around the nostril, some blending with those of the
opposite side.
The =zygomaticus=, long and narrow, arises on the scutiform cartilage,
and ends at the angle of the mouth.
[Illustration: