Removal of the skin from the ventral and lateral aspects of the thorax and abdomen exposes the cutaneous muscle of the trunk. Tunica abdominalis This is a yellow elastic sheet – the abdominal tunic underneath the cutaneous muscle. It is very thick and closely adherent to the aponeurotic part of the external oblique muscle but […]
These are deeply situated in the sublumbar region at the ventral face of the lumbar vertebra and the anterior face of the ilium. These muscles occupy not only the sublumbar region but also extend both forwards and backwards beyond this region, and enter into the formation of the roof of the abdominal cavity. They are
The tensor fasciae latae is thin and long. A superficial gluteus overlies gluteus medius posteriorly. The gluteus medius do not go forwards beyond the ilium hence no lumbar part. It is inserted into the trochanter major. The gluteus profundus is intimately attached to the middle gluteus and is the smaller of the two lying adherent to the ilium. The biceps femoris has origin from tuber
The tensor fasciae latae is less extensive. A superficial gluteus is more distinct and ‘V’ shaped. It arises from the lateral angle of the ilium and gluteal fascia and inserted to the third trochanter. The gluteus medius extends far forwards over the longissimus dorsi muscle and is inserted to the trochanter major. It assists in back kick . The gluteus profundus is smaller and is inserted
SUPERFICIAL LAYER Gastrocnemius This is placed behind the femoro-tibial articulation and extends from the distal third of the femur to the proximal extremity of the tuber calcis. This large muscle has two heads of origin. Origin: Medial head-the medial supracondyloid crest and the lateral head– outer lip of the supracondyloid fossa. Each head is succeeded by tendon, which
Complex muscle This is a single muscle situated on the dorso-lateral aspect of the leg. Origin: By a strong tendon from the extensor fossa of the femur. This shows about its middle three muscular bellies, each of which is succeeded by a tendon. The peroneus tertius is the most superficial part and well developed. It is located
Fascia The fascia of the leg consists of several super-imposed layers. The superficial fascia is continuous with that of the thigh. The tendons of the tensor fascia latae, biceps femoris, semitendinosus, gracilis and sartorius formthe next layer. These two layers frequently use together and are attached to the patellar ligaments, tibial crest and medial face
The following are the muscles present on the anterior aspect of the thigh. Sartorius (Already described in medial group of muscles of thigh) Quadriceps femoris Rectus femoris Vastus lateralis Vastus medialis Articularis genu Quadriceps femoris This is a massive muscle composed of four divisions situated around the anterior, lateral and medial faces of the femur. Of these
This region has eight muscles arranged in superimposed layers. They are First layer Sartorius Gracilis Second layer Pectineus, Adductor and Semimembranosus Third layer Quadratus femoris, Obturator internus, Obturator externus and Gemellus Of these the obturator internus is placed within the pelvic cavity. FIRST LAYER Sartorius This is a long, thin and flat muscle and is the anterior
The lateral aspect of the hip and thigh muscles are as follows – Tensor fasciae latae (Tensor vaginae femoris) Biceps femoris Gluteus medius (Middle gluteus) Gluteus profundus (Deep gluteus) Semitendinosus Tensor fasciae latae (Tensor vaginae femoris) This is the anterior most muscle on the external aspect of the hip and thigh. It is triangular in form with its base below
