Muscle information (bottom half)

Origin of the biceps brachii

Short: coracoid process; Long: edge of glenoid cavity

Insertion of the Biceps Brachii

Radial tuberosity of the radius

Action of the biceps brachii

Flexes and supinates forearm

Innervation of the biceps brachii

Musculocutaneous nerve

Origin of the Adductor longus

Close to the pubic symphysis

Insertion of the adductor longus

Linea aspera

Action of the adductor longus

Adducts, flexes and medially rotates the thigh

Innervation of the adductor longus

Obturator nerve

Origin of the adductor magnus

Ischium, pubis and ischial tuberosity

Insertion of the adductor magnus

Linea aspera and the adductor tubercle

Action of the adductor magnus

Adducts, flexes and medially rotates the thigh, also extends the thigh

Innervation of the adductor magnus

Obturator and sciatic nerves

Origin of the Biceps femoris

Long: Ischial tuberosity; Short: linea aspera

Insertion of the Biceps femoris

Head of fibula, lateral tibial condyle

Actions of the Biceps femoris

Extends thigh and flexes the lower leg

Innervation of the Biceps femoris

Sciatic nerve

Origin of the Gastroc

Medial and lateral femoral condyles

Insertion of the Gastroc

Calcanius via the achilles tendon

Action of the Gastroc

Plantarflexes foot and flexes lower leg

Innervation of the Gastroc

Tibial nerve

Origin of the tibialis anterior

Lateral tibial condyle, proximal tibial shaft

Insertion of the Gastroc

Medial cuneiform and the first metatarsal

Action of the Tibialis anterior

Dorsiflexes the foot

Innervation of the Tibialis anterior

Deep fibular nerve