Muscles Crossing the Elbow Joint Anterior flexor muscles Brachialis and biceps

Muscles crossing the elbow joint anterior flexor

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Muscles Crossing the Elbow Joint Anterior flexor muscles Brachialis and biceps brachii : chief forearm flexors Brachioradialis : synergist and stabilizer Posterior extensor muscles Triceps brachii : prime mover of forearm extension Anconeus : weak synergist Triceps brachii: Lateral head Long head Humerus Olecranon of ulna Anconeus Posterior view
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Muscles of the Forearm Actions - movements of wrist, fingers, thumb, pronation, supination Most anterior muscles – flexors; insert via flexor retinaculum Most posterior muscles – extensors; insert via extensor retinaculum Pronator teres and pronator quadratus pronate forearm Supinator - synergist with biceps brachii in forearm supination
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Muscles of the Forearm: Anterior Compartment Flexors Flexor carpi radialis Palmaris longus Flexor carpi ulnaris Flexor digitorum superficialis and flexor digitorum profundus Flexor pollicis longus Superficial transverse ligament of palm Palmar aponeurosis Flexor digitorum superficialis Flexor carpi ulnaris Palmaris longus Flexor carpi radialis Medial epicondyle of humerus Flexor retinaculum Pronator quadratus Flexor pollicis longus Extensor carpi radialis longus Brachio- radialis Pronator teres Tendon of flexor digitorum superficialis (cut) Lumbricals Tendon of flexor pollicis longus Thenar muscles of thumb Pronator quadratus Flexor pollicis longus Flexor digitorum profundus Tendon of flexor digitorum profundus Tendon of flexor carpi ulnaris (cut) Supinator
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Muscles of the Forearm: Posterior Compartment Extensors Extensor carpi radialis longus and brevis Extensor digitorum Extensor carpi ulnaris Extensor pollicis brevis and longus Extensor indicis Abductor pollicis longus Extensor expansion Tendons of extensor digitorum Extensor pollicis longus Extensor pollicis brevis Abductor pollicis longus Extensor digitorum Extensor carpi radialis brevis Extensor carpi radialis longus Tendons of extensor carpi radialis brevis and longus Extensor indicis Extensor digiti minimi Extensor carpi ulnaris Flexor carpi ulnaris Anconeus Insertion of triceps brachii Brachioradialis Extensor indicis Extensor pollicis brevis Extensor pollicis longus Abductor pollicis longus Supinator Anconeus Olecranon of ulna Interossei
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Movements of the Thigh Include flexion, extension, abduction, adduction, circumduction, and rotation Thigh flexors pass in front of hip joint Iliopsoas ( iliacus and psoas major ): prime mover of flexion Tensor fasciae latae Rectus femoris Assisted by medial adductors and sartorius 12th rib Quadratus lumborum Psoas minor Iliac crest Iliopsoas Psoas major Iliacus Anterior superior iliac spine Tensor fasciae latae Pectineus Sartorius Adductor longus Quadriceps femoris Rectus femoris Gracilis Adductor magnus • Vastus lateralis • Vastus medialis Tendon of quadriceps femoris Patella Patellar ligament
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Movements of the Thigh Thigh extensors Hamstring muscles : prime movers of extension Biceps femoris Semitendinosus Semimembranosus Gluteus maximus : assists hamstrings in forceful thigh extension Gluteus medius Gluteus maximus Adductor magnus Gracilis Iliotibial tract Long head Short head Biceps femoris Hamstrings Semitendinosus Semimembranosus
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Movements of the Thigh Adductors (also medially
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  • Summer '16
  • Kuliz
  • Physiology, Anatomy, muscles, Muscles of the upper limb, Extensor Digitorum, extensor

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