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)

26

Os the Muscles

following in their a&ion, the order os
Fibres in both agreeing, and these be-
ing always ablent, when those are
continued Flestiy to the Jun&ure os
the 6Jsa Puhis.

So called from the Rectitude of its
Position. Anatomiils differ in align-
ing the Origination of this Muscle,
some deriving it from die Sternum,
others from the Os Puhis ; but it seems
a matter more of controversie than
use, since either part is indifferently
moved by it, the opposite remaining
slable. Little can be added to the
common and well known defcription
of these Muscles, they being conti-
nued according to the length of the
Lower Belly from the Cartilago Ensi-
sormts (%i)y and two of the Cartilages %.x?ii,
of the True, and two of the Bastard
Ribs down to the Os Pubis (38), and
divided into four or five Portions by
three or four Intermediate Perigrapha,
or Transverse Tendinous Interse&ions.
The Vessels which pass underneath its
Upper part are the Mammary Artery
Desending, and its Vein Ascending*

B/W.r.32.
MN.PP.

Rettus.

Thole