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)

os the Cubit. 151
from the Upper and Back part of the
Os Humeri, under the Deltoid Muscle,
and being Tendinous on the outsicle
and Fleshy within, is so Insertedto the
Superior and External part of the
Ulna called Olecranum, and Ancon, or
the Elbow, (24.) %.xviii»
Irs use is to Extend the Cubit; If
we examin the two beginnings of this
Muscle we shall find them interwoven
with various Orders of Fibres, where-
by it is rendered capable of perform-
ing the Extension of the Cubit with a
greater ltrength, which appears in
Tumblers when they are Walking on
their Hands, who by an Immediate
Extension of their Cubits can return
to their Feet.
id. m. t. BrachUus Extcrnm.
} 2. x.
This seems to be the Third Begin-?
ning of the former Muscle, its Ori-
gination is continued from above th§
middle of the Inferior and Back part
of the Os Humeri (17), to its Cavity,
which receives the Olecranum (24) in
the Extension of the Cubit, where
joining with the Tendinous outilue of
the Former, it is Inferted with it, as
abovesaid. 4 An*

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