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AREOLAR TISSUE, TENDONS, AND MUSCLES. 1G7

sterno-cleido-mastoid, passes upward and foi'Mard, and terminates in
distinct tendinous fibres, which are continuous with the epicranial or
occipito-frontal aponeurosis.
The Frontalis Muscle is tliinner and paler than the occipitalis, and is
more intimately connected with the skin. It arises from the aponeu-
rosis, on a transverse line, between the fronto-parietal suture and the
Fig. 88.

LE\ ATOR
ANGL LI
SUPERIORIb

The Muscles of Expression.
frontal eminences. It is larger than the occipitalis, and arises by two
heads slightly separated from the fibrous epicranial or occipito-frontal
aponeurosis, and passes downward over the forehead. The fibres con-
verge as they descend, the two portions of the muscle uniting just above
the nasal eminence to be inserted into the eyebrows. The central por-
tion of the muscle is continuous with the pyramidalis nasi, while a
large number of its fibres are interlaced with the corrugator supercilii
and orbicularis palpebrarum, and extend outward over the external
angular process of the frontal bone.
The Epicranial or Occipito-frontal Aponeurosis is a fibrous connec-
tive extension of the above muscles, covering the upper portion or
vertex of the skull from side to side, without division. Superiorly, it
is intimately connected with the scalp, though interspaces will be found
filled with granules of fat. So close is this connection that it is
difficult to separate the tw^o by dissection: Between the epicranial