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Anatomy

Anatomy. Muscles. http://www.ishapeup.com/musclecharts.html. Muscles of the Hip. 1. Iliacus 2. Psoas Major 7. Gluteus minimus 8. Gluteus medius 10. Gluteus maximus. Origin – Iliac Insertion – tendon of Psoas Action – Hip flexion, (with Psoas major). 1. Iliacus.

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Anatomy

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  1. Anatomy Muscles http://www.ishapeup.com/musclecharts.html

  2. Muscles of the Hip • 1. Iliacus • 2. Psoas Major • 7. Gluteus minimus • 8. Gluteus medius • 10. Gluteus maximus

  3. Origin – Iliac Insertion – tendon of Psoas Action – Hip flexion, (with Psoas major) 1. Iliacus

  4. Origin – T12 and Lumbar vertebrae Insertion – lesser trochanter, femur Action - hip flexion 2. Psoas Major

  5. Origin – Iliac, lateral surface Insertion – greater trochanter Action - abduction 7. Gluteus Minimus8. Gluteus Medius

  6. Origin – iliac, sacrum, coccyx Insertion – gluteal tuberosity, IT band Action – extension of thigh 10. Gluteus Maximus

  7. Anterior Muscles of the Thigh • 11. Vastus lateralis • 12. Vastus medialis • 13. Vastus intermedius • 14. Rectus Femoris • 15. Sartorius

  8. Muscles of the ThighQuadriceps

  9. 11.Vastus Lateralis • 13.Vastus Intermidius • 12.Vastus Medilais Origin – Greater Trochanter Insertion – tibia via patella Action – leg extension

  10. 14. Rectus Femoris Origin – Ilium, acetabulum Insertion – tibia via patella Action – leg extension PLUS some hip flexion

  11. Origin – iliac spine Insertion – tibia, medial shaft Action – lateral rotation of thigh 15. Sartorius I am the longest muscle

  12. Posterior Muscles of the Thigh • 16. Semimembranosus • 17. Semitendinosus • 18. Biceps femoris

  13. 16.Semimembranosus17.Semitendinosus Origin – ischial tuberosity Insertion – tibia medial condyle Action – leg flexion

  14. 18. Biceps Femoris Origin – ischial tuberosity (long) linea aspera of femur (short) Insertion – head of fibula Action – leg flexion

  15. Adductor Muscles of the Thigh • 19. Adductor magnus • 20. Adductor brevis • 21. Adductor longus

  16. Origin – Pubis Insertion - Femur Action – adduction AdductorBrevis 19. Adductor magnus20. Adductor brevis21. Adductor longus

  17. Muscles of the Leg

  18. 24.Extensor digitorum longus • The tendon splits at the Ankle into 5 branches 4 to the lesser toes 1 to the lateral foot

  19. 25.Extensor hallucis longus • Hallux means big toe

  20. Origin – Tibia, lateral Insertion – medial tarsal Action – dorsi flexion 26. Tibialis Anterior

  21. 28. Flexor Hallucus longus30. Flexor digitorum longus Antagonists to the extensors!

  22. Origin – Femur lateral condyles Insertion - Tendocalcaneus Action – Plantar flexion 31. Gastrocnemius

  23. 31a. Soleus

  24. Muscles of the Trunk

  25. Origin Ribs Insertion – Coracoid Action – brings extended arm down + adduction Pectoralis Minor

  26. Origin Sternum Insertion – Humerus Action – brings extended arm down + adduction Pectoralis Major

  27. Linea Alba Aponeurosis Rectus and Transverse Abdominus

  28. Internal and ExternalObliques

  29. Muscles of the Back

  30. Origin – T7-T12, all lumbar and sacral, iliac crest Insertion – humerus, bicipital groove Action – brings extended arm down + adduction 20. Latissumus Dorsi

  31. Origin – Occipital, C7 and Thoracic Insertion – spine of scapula Action on Scapula Cervical - up Middle - midline Lower - down 21.Trapezius

  32. Action – bring Scapula towards each other 16. Rhomboids

  33. Muscles of the Shoulder

  34. Origin – Under Scapula Insertion – humerus Action – lateral rotation Rotator Cuff Anterior5. Subscapularis

  35. Origin – 1.Supraspinatus, above spine 2.Infraspinatus, below 3.Teres minor, belower Insertion – Humerus Action – Outward Rotation Rotator Cuff Posterior

  36. Origin – lateral 1/3 of clavicle, acromion, scapula Insertion – humerus, deltoid tuberosity Action – raise the arm 6. Deltoid

  37. Detailed look at the origin Deltoid

  38. Muscles of the Arm

  39. Origin – humerus, below deltoid insertion Insertion – ulna Action – Arm Flexion 8.Brachialis

  40. Origin – LH, Scapula above GH articulation SH, corocoid process Insertion – Radial tuberosity Action – Arm Flexion 9.Biceps Brachii

  41. 10.Triceps Brachii • O – Long, posterior Lateral, lateral Medial, lower • I – Ulna, Olecranon • F – Extension, elbow

  42. Origin – Insertion – Action – Flexors

  43. Origin – Insertion – Action –

  44. Origin – manubrium, sternal head of clavicle Insertion – mastoid process Action – turns the head, flexes the head if both are contracted 8.Sternocleidomastoid

  45. 15. Masseter

  46. Encircles the eye 3. Orbicularis Oculi

  47. Encircles the mouth 6. Orbicularis Oris

  48. Fin

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