Cowper, William: Myotomia Reformata: Or A New Administration Of All The Muscles Of Humane Bodies: Wherein The true Uses of the Muscles are Explained, the Errors of former Anatomists concerning them Confuted, and several Muscles not hitherto taken notice of Described ; T whick are subjoin'd, A Graphical Description of teh Bones, And other Anatomical Observations (London, 1694)

±o6 Os the Muscles
double. It has two Distind Fleshy
Originations from the Superior and
Hindmost parts of each Tubercle of
the Lower Appendage of the Thigh-
bone (42.), which in their descent are Fig.xviih
each dilated into two large Fleshy
Bellies; The innermost of which is
Thicken: and Largest, having each a
ditikringSeries of Fleshy Fibres,and join
to each other near where they make
a Broad Strong Tendon, which nar-
rowing it self joins with the great
Tendon of the Gasierocnemixs Intemus,
four Fingers breadth above its inser-
tion to the Os Calcis. (49.)
ub. v. Rioian ailerts, with Pesalius, that in
c«p-43- the two Beginnings of this Muicle
there are two Ojsictda sefamoidea, which
we mull acknowledge with Marchetts
have hitherto escaped our Oblervati-
on, though its likely it may be so in
Aged Bodies, as it appeared in a Sub-
ject I lately Diilecled on One Side only.
When this Mufcle Acts the Foot is
said to be Extended or Pulled Back-
wards, which motion of it is very
necessary in Walking, Running, Leap-
ing, and (landing on Tiptoe, &c.
Hence it is thole that Walk much have
these Muscles Larger than others,
through