Biceps Femoris: Long Head
ORIGIN: Ischial tuberosity of os coxa.
INSERTION: Head of fibula and lateral condyle of tibia.
ACTION: Flexes: Leg at knee and laterally rotates let at knee when knee is flexed.
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Muscle Knowledge: Psoas
ORIGIN: Bodies and base of transverse processes of L1-L5.
INSERTION: Lesser trochanter of femur.
ACTION: Flexes and laterally rotates thigh at hip; flexes vertebral column (torso).
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Muscle Knowledge: Transversus Abdominis Muscle
Origin: Anterior iliac crest lateral half of inguinal ligament, thoracolumbar fascia and cartilages of ribs 6-12
Insertion: Abdominal aboneurosis to linea alba, xiphid process of pubic smphysis.
Action: Compress Abdomen.
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Muscle Knowledge: Flexor Carpi Radialis
ORIGIN: Medial epicondyle of humerus.
INSERTION: Bases of second and third metacarpals.
ACTION: Flexes and radially deviates (abducts) hand at the wrist.
Muscle Knowledge: Rectus Abdominis
Origin: Pubic crest and symphis pubis
Insertion: Costal cartilage of ribs 5-7; and zyphoid process of sternum
Action: Flexes vertebral column (or torso) compresses abdomen
Muscle Knowledge: Anconeus Muscle
ANCONEUS MUSCLE
ORIGIN: Lateral epicondyle of humerus
INSERTION: Posterior olecranon process of ulna.
ACTION: Extends the forearm at the elbow.
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Muscle Knowledge: Coracobrachialis Muscle
Origin: Coracoid Process of the scapula
Insertion: Mid-medial surface of the humerus
Action: Flexes and adducts the arm at the shoulder
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Muscle Knowledge: Triceps Brachii, Long Head
Origin: Infraglenoid tubercle of scapula
Insertion: Posterior olecranon process of ulna
Action: Extends the forearm at the elbow and also extends the arm at the shoulder.
Muscle Knowledge: Biceps Brachii
Origin:
Long Head-Supraglenoid tubercle of scapula
Short Head-Coracoid process of scapula Read more
Muscle Knowledge: Pectoralis Minor
Origin: Anterior surface of the sternal ends of ribs 3-5
Insertion: Coracoid process of the scapula
Action: Draws scapula forward and downward, (also elevates ribs if origin are reversed)
Photo Courtesy of DIAKADI
Photo Courtesy of DIAKADI