3. Semitendinosus
Origin: The tuberosity of the ischium, by a common tendon
with the biceps.
Insertion: The tuberosity of the isehium
Structure: Short muscle fibers pass diagonally downward
from tendo of origin to join the tendon of insertion,
bulk of muscle being in upper half of thigh. ’
Action: Filexes the leg on the thigh.
Innervation; Great sciatic
4. Seminembranceus )
Origin: The tuberosity of the ischium
Insertion: Inner tuberosity of the tibia
Structure: .Similer to the preceding mscle, but a ‘onger
upper tendon and a shorter lower one brings the musouler
mass lower downe
Agtion: Flexes the leg and rotates it inward
Innervation: Great seietic
Abductors
1, Gluteus Medius
Origin: Outer surface of ilium near its crest
Insertion: Back part of the top of the great trochanter.
Structure: Fibers arise directly from the ilium and
converge to a penniform junction with the flat tendon
of insertions
Aetion: Superior gluteal (see innervation )
Innervation: See action Potates, abducts and advances
the thigh.

2. Gluteus Minimas

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