Muscles (muscular system)

Pear-shaped muscle

Pear-shaped muscle (m piriformis) begins on the pelvic surface of the cruciate (II-IV sacral vertebra), lateral to the pelvic sacral orifices, exits the pelvic cavity through a large sciatic foramen.

Internal musculoskeletal system

The internal blocking muscle (m.obturatorius internus) begins at the edges of the occlusal opening (with the exception of the locking groove), on the inner surface of the obturator's membrane, on the pelvic surface of the ilium (above the occlusion aperture) and on the occlusal fascia.

Popliteal fossa

The most difficult is the popliteal fossa (fossa poplitea), bounded from above by the tendons of the semitendinous and semimembranous muscles (medially) and the tendon of the biceps femoris (laterally).

Femoral canal

The femoral canal (canalis femoralis) 1-3 cm long has three walls. The lateral wall of the canal is formed by the femoral vein, the anterior wall with a crescent-shaped margin and the superior horn of the wide fascia (femur).

Psoas minor muscle

The small lumbar muscle (m.psoas minor) is unstable, absent in 40% of cases. It begins on the intervertebral disc and adjacent to it the edges of the XII thoracic and I lumbar vertebrae.

Ilio-lumbar muscle

The ilio-lumbar muscle (m.iliopsoas) consists of two muscles - the large lumbar and iliac, which, starting at different places (on the lumbar vertebrae and iliac bone), unite into a single muscle that attaches to the small trochanter of the femur.

Muscles of the pelvis (muscles of the pelvic girdle)

The muscles of the pelvis are divided into two groups - internal and external. The group of internal muscles include iliac-lumbar, internal blocking and pear-shaped.

Muscles of lower limb

Muscles of the lower limb, as well as the upper, are divided into groups, based on regional affiliation and the function they perform. Distinguish between the muscles of the pelvic girdle and the free part of the lower limb - the thigh, shin and foot.

Muscles of a brush

The muscles of the hand are divided into 3 groups: the muscles of the thumb (lateral group) forming in the lateral region of the palm a pronounced elevation of the thumb (tenar, thenar); muscles of the little finger (medial group) forming in the medial region of the palm elevation of the little finger (hypotenar, hipothenar); the middle group of muscles of the hand located between the two groups of muscles, and also on the rear of the hand.

Muscles of forearm

The muscles of the forearm are numerous, differ in the variety of functions. Most of the muscles are multiarticular, because they act on several joints: ulnar, radicular, wrist and distal joints of the hand and fingers.

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