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Anatomy Muscles

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Presentation on theme: "Anatomy Muscles"— Presentation transcript:

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

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

5 7. Gluteus Minimus 8. Gluteus Medius Origin – Iliac, lateral surface Insertion – greater trochanter Action - abduction

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

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

8 Muscles of the Thigh Quadriceps

9 11111.Vastus Lateralis 11113.Vastus Intermidius 111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 15. Sartorius Origin – iliac spine Insertion – tibia, medial shaft Action – lateral rotation of thigh

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

13 16.Semimembranosus 17.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 Adductor Brevis 19. Adductor magnus 20. Adductor brevis 21. Adductor longus Origin – Pubis Insertion - Femur Action – adduction

17 Muscles of the Leg

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

19  Hallux means big toe 25.Extensor hallucis longus

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

21 28. Flexor Hallucus longus 30. Flexor digitorum longus Antagonists to the extensors!

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

23 31a. Soleus

24 Muscles of the Trunk

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

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

27 Rectus and Transverse Abdominus

28 Internal and External Obliques

29 Muscles of the Back

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

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

32 16. Rhomboids Action – bring Scapula towards each other

33 Muscles of the Shoulder

34 Rotator Cuff Anterior 5. Subscapularis Origin – Under Scapula Insertion – humerus Action – lateral rotation

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

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

37 Deltoid  Detailed look at the origin

38 Muscles of the Arm

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

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

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

42 Flexors Origin – Insertion – Action –

43 Origin – Insertion – Action –

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

45 15. Masseter

46 3. Orbicularis Oculi Encircles the eye

47 6. Orbicularis Oris Encircles the mouth

48


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