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Origin – lateral condyle and lateral shaft of tibia , interosseous membrane Insertion- the  base of 1 st metatarsal,first cuneiform Nerve supply- deep peroneal nerve(l4,5,s1) Blood supply- anterior tibial artery Action- dorsiflexion of the ankle, inversion of the foot Palpation- lateral side of the tibia on the anterior surface during active ankle dorsiflexion tendon palpated on the medial side of anterior the surface of the ankle. Paralysis of this muscle causes foot drop. Frequently involved in “shin splints"  

The sartorius is the longest muscle in the body .it is the most superficial thigh muscle and forms the lateral border of the femoral triangle.it is also called a tailored muscle. Origin- ·          Anterior superior iliac spine Insertion- ·          The upper  medial shaft of the tibia Nerve supply- ·          Femoral nerve(l2,3,4) Blood supply- ·          5-10 vessels originated from superior circumflex iliac, lateral femoral, deep femoral, descending geniculate and femoral artery Action – ·          Assist flexion,abduction,lateral rotagion of femur at hip joint ·          Assist flexion,medial rotation of knee(“tailor position”) Palpation- ·          Close to its origin,just below the anterior superior iliac spine,continuing diagonally across anterior pelvic area to its insertion during active flexion, abduction, and lateral rotation of the hip.   Its name is derived from the Latin word for tailor, sartor, to indicate its action of bringing the leg into a

 THE TENSOR FASCIA LATAE IS A MUSCLE OF THE THIGH LOCATED IN THE LATERAL ASPECT OF THE THIGH. TENSOR FASCIA LATAE IS A FUSIFORM MUSCLE AND TOGETHER WITH GLUTEAL MAXIMUS IT ACTS ON THE ILIOTIBIAL BAND AND   IS CONTINUOUS WITH ILIOTIBIAL TRACT AND ATTACHES TO THE TIBIA. ORIGIN:  ILIAC CREST(POSTERIOR TO ANTERIOR SUPERIOR ILIAC SPINE) INSERTION:  ILIOTIBIAL TRACT (WHICH CONTINUES TO ATTACH TO THE LATERAL CONDYLE PF THE TIBIA) NERVE SUPPLY:  SUPERIOR GLUTEAL NERVE BLOOD SUPPLY: PRIMARILY LATERAL CIRCUMFLEX FEMORAL ARTERY,SUPERIOR GLUTEAL ARTERY ACTION:  PREVENTS COLLAPSE OF EXTENDED KNEE IN AMBULATION,ASSIST ABDUCTION,MEDIAL ROTATION,FLEXION OF FEMUR AT HIP AND EXTENSION OF KNEE. PALPATION: BELOW SUPERIOR ILIAC SPINE ON ANTERIOR PELVIS (AT A LEVEL OF GREATER TROCHANTER)DURING ACTIVE HIP ABDUCTION. THIS MUSCLE BRACES THE KNEE WHEN WALKING. ALSO KNOWN AS ILIOTIBIAL BAND(ITB).  

The Pectoralis major is a muscle of the pectoral region. This muscle along with the Pectoralis minor, Subclavius and Serratus anterior forms the pectoral region. It is the largest muscle in this region. Morphologically it is thin and fan-shaped. It is characterized by 2 heads, the large Sternocostal head, and the small Clavicular head. ORIGIN The Sternocostal head arises from- Medial parts of 2nd-6th costal cartilages and aponeurosis of the external oblique muscle of the abdomen. Lateral half of the anterior surface of the sternum up to 6th costal cartilage. The Clavicular head arises from the medial half of the anterior aspect of the clavicle. INSERTION Pectoralis major is inserted by a bilaminar tendon on the lateral lip of the bicipital groove of the humerus. This tendon has an anterior lamina and a posterior lamina. Anterior lamina is thick, short and is formed by clavicular fibers. Posterior lamina is thin, long and is formed by sternocostal and aponeurotic fi

Rhomboid major ORIGIN: spinous processes of T2-T5. INSERTION:  medial border of the scapula. ACTION: Rhomboid minor and Rhomboid major are working together as a whole to perform the movement. retract scapula (squaring shoulders), synergist with middle fibers of Trapezius. rotate glenoid cavity downward (lowering arm against resistance). stabilize scapula. NERVE SUPPLY: Dorsal scapular nerve

It is a diamond-shaped quadrilateral Muscle. The trapezius has three functional parts: an upper (descending) part which supports the weight of the arm; a middle region (transverse), which retracts the scapula; and a lower (ascending) part which medially rotates and depresses the scapula. ORIGIN: occipital bone, ligamentum nuchae, spines of C7 - T12. INSERTION:  spine & acromion ofscapula, lateral 3rd of clavicle. ACTION: stablizes, raises, retracts & rotates scapula. adducts & retracts scapula (middle). elevates scapula or synergist to head extension (suprior). depresses scapula & shoulder (inferior). NERVE SUPPLY: Accesory nerve

Serratus anterior(boxer’s muscle) | SHOULDER MOVERS ORIGIN:  by series of muscle slips from ribs 1-9. INSERTION:  the anterior surface of the vertebral border of the scapula. ACTION:  an agonist to protract & hold scapula against the rib cage rotates scapula (inferior angle laterally & upward) abduct & raise arm & horizontal arm movements. NERVE SUPPLY: The long thoracic nerve.

ORIGIN:   the anterior surface of ribs 3-5 (or 2-4) INSERTION:   coracoid process of scapula ACTION: draws scapula forward & downward (ribs fixed). draws rib cage superiorly (scapula fixed). NERVE SUPPLY : Both pectoral nerves Supply to this muscle.