Download muscle goat - UMK CARNIVORES 3

Defination
Origin : The point at which something comes
into existence or from which it derives or is
derived.
Insertion : the act of putting one thing into
another
action : something done
Ulnaris lateralis
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Insertion : also into top of the
outer surface of the single
metacarpal bone.
Structure : Wider than in the horse
, and less tapered at its ends . The
lower portion of the muscle belly
fuses with the belly of the flexor
carpi ulnaris on the back of the
forearm. They insert together as a
single tendon into the accesory
carpal bone.
Action : Flexes the wrist joint ;
extends the elbow joint . Although
technically a part of the extensor
group of the forearm , this muscle
is funtionally a flexor of the wrist
joint because its main tendon
inserts behind the wrist joint . It is
therefore called ulnaris lateralis
rather than the extensor carpi
ulnaris (in dog and feline) .
Abductor digiti I (pollicis) longus
(extensor carpi obliquus)
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Origin : lower half of the outer
surface of the radius and an
adjacent area on the ulna.
Insertion : inner side of the upper
end of the metacarpal bone.
Action : extends the carpal joint.
Structure : the flat , triangular
muscle belly begins on the
outside the forearm, then curves
down , around , and to the inside
of the wrist, ending as a tendon. It
emerges from under the extensor
digitorum communis and then
passes over the tendon of the
extensor carpi radialis. It may
produce a very subtle effect on
the surface.
Pronator teres
• In the goat, it is weak,
fibrous band, occasionally
containing a few muscular
fibers. It does not create
surface form.
• In dog and feline
• Origin : inner surface of
the lower end of the
humerus. It is the forward
most attachment of all
the flexor muscles.
• Insertion : inner front
edge of the radius,
approximately a third to
halfway down the bone.
Flexor carpi radialis (flexor metacarpi
internus)
• Origin : lower end of the inner
surface of the humerus.
• Insertion : upper inner corner
of the metacarpal bone.
• Action : flexes the wrist joint ;
extends the elbow joint.
• Structure : long, slightly
flattened muscle belly
becomes tendinous three
fourths of the way down the
forearm. The entire front edge
lies up against the exposed
radius.
Flexor digitorium superficialis ( flexor
digitorum, flexor perforatus)
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Origin : lower end of the inner
surface of the humerus.
Action : flexes the wrist joint
and the upper two toe joints;
extends the elbow joint.
Insertion : upper rear surface
of the middle toe bone of
both toes.
Structure : a small portion of
the fleshy belly is visible on
the surface, on the inner side
of the limb, above the wrist .
The long tendon splits on the
back of the metacarpal bone
for each toe. Just before it
inserts, the tendon is
perforated with a single hole
to allow passage of the
tendon of the flexor digitorum
profundus.
Flexor digitorum profundus ( flexor
perforans)
• Origin : also from the rear and
outer surface of the olecranon
of the ulna.
• Insertion : rear structure of the
last toe bone of both toes.
• Structure : the lower end of
the tendon separates into two
tendons, one for each digit .
The muscle belly comes to the
surface for a short distance
just below the elbow.
• Action : flexes the wrist joint
and all the toe joints; extends
the elbow joint.
Flexor carpi ulnaris (flexor metacarpi
medius)
• Origin : lower end of the
inside surface of the
humerus ; inner surface,
towards the rear , of the
upper end of the ulna.
• Insertion : upper edge
end of the ulna
• Action: flexes the wrist
joint ; extends the elbow
joint.
• Structure : more
flattened and wider than
in the horse.