Anatomy of muscles

Total Flash Cards » 72
Text Size » S M L     
 
1. 

Trapezius
 
Origin: Base of skull, occipital protuberance; Ligaments of neck; Spines of 7 cervical and upper 3 thoracic vertebrae; Spines of 4-12 thoracic vertebrae.Insertion: Posterior aspect of outer third clavicle; Border of the acromion process; Upper border of the scapular spine; Triangular space at the base of the spine.
 
2. 

Rhomboid major
 
Origin: Spinous process of the 2-5 thoracic vertebrae.Insertion: Medial border of the scapula, below the spine of scapula.
 
3. 

Rhomboid minor
 
Origin: Spinous process 7th cervical and 1st thoracic vertebrae. Insertion: Medial border of the scapula, below the spine of scapula.
 
4. 

Levator Scapula
 
Origin: Transverse process of the upper 4 cervical vertebrae.Insertion: Medial border of the scapula above the spine of the scapular spine.
 
5. 

Pectoralis Minor
 
Origin: Outer surfaces of the 3-5 ribs.Insertion: Coracoid process.
 
6. 

Serratus anterior
 
Origin: Lateral portion of the upper 9 ribsInsertion: Whole medial border of the costal aspect of the scapula.
 
7. 

Supraspinatus
 
Origin: Supraspiantus fossa.Insertion: Top of the greater tubercle of the humerus.
 
8. 

Infraspinatus
 
Origin: Posterior surface of the scapula below the scapular spine.Insertion: Greater tubercle of the humerus on the posterior side.
 
9. 

Teres minor
 
Origin: Posterior, lateral surface of the scapula.Insertion: Greater tubercle of the humerus on the posterior side.
 
10. 

Subscapularis
 
Origin: Entire anterior surface of the scapular fossa.Insertion: Lesser tubercle of the humerus.
 
11. 

Deltoid
 
Origin: Front outer third of clavicle, border of the acromion, and lower edge of the spine of the scapula.
 
12. 

Teres major
 
Origin: Lower third of the lateral border of the scapula.Insertion: Inner lip of the intertubercular groove of the humerus.
 
13. 

Coracobrachialis
 
Origin: coracoid process of the scapula.Insertion: medial, middle of humerus.
 
14. 

Latissimus dorsi
 
Origin: Posterior crest of the ilium, back of the sacrum and spinous process of the lower 3 ribs.Insertion: Medial side of the intertubercular groove of the humerus.
 
15. 

Pectoralis major
 
Origin: Inner half of the anterior surface of the clavicle, anterior surface of the costal cartilages of the first 6 ribs and adjoining.Insertion: Outer lip of the intertubercular groove of the humerus.
 
16. 

Biceps brachii
 
Origin: Long head: Top of the glenoid fossa.Short head: Top of the coracoid process.Insertion: Tuberosity of the radius.
 
17. 

Brachialis
 
Origin: Lower half of the anterior portion of the humerus.Insertion: coronoid process of the ulna.
 
18. 

Brachioradialis
 
Origin: Lower two thirds of outer condyloid ridge of the humerus.Insertion: outer surface of the lower end of the radius at the styloid process.
 
19. 

Triceps brachii
 
Origin: Long head: Lower edge of the glenoid process of the scapula.Lateral head: Upper half of the posterior surface of the humerus.Medial head: Lower two thirds of the posterior surface of the humerus.Insertion: Olecranon process of the ulna.
 
20. 

Palmaris longus
 
Origin: Medial epicondyle of humerus.Insertion: Palmar aponeurosis.
 
21. 

Flexor Carpi radialis
 
Origin: Medial epicondyle of humerus.Insertion: Bases of 2nd and 3rd metacarpals.
 
22. 

Flexor Carpi ulnaris
 
Origin: Medial epicondyle of humerus.Insertion: Bases of 5th metacarpals.
 
23. 

Pronator teres
 
Origin: Medial epicondyle of humerus and coronoid process of ulna.Insertion: mid-lateral surface of the radius.
 
24. 

Pronator quadratus
 
Origin: Anterior distal radius.Insertion: Anterior distal ulna.
 
25. 

Extensor carpi radialis longus
 

ORIGIN: lateral epicondyle of humerus

INSERTION: `base of 2nd metacarpal

 
26. 

Extensor carpi radialis brevis

 

ORIGIN: lateral epicondyle of humerus

INSERTION: base of 3rd metacarpal

 
27. 

Extensor carpi ulnaris

 

ORIGIN: lateral epicondyle of humerus

INSERTION: base of 5th metacarpal

 
28. 

Rectus abdominis

 

ORIGIN: crest of the pubis

INSERTION: cartilage of the 5th, 6th, and 7th ribs and the xiphoid process

 
29. 

External obliques
 

ORIGIN: borders of the lower 8 ribs at

the side of the chest interdigitating with

 
30. 

Internal obliques
 

ORIGIN: upper half of the inguinal ligament, anterior two-thirds of the crest of the ilium and the thoracolumbar fascia

INSERTION: costal cartilages of the 8th, 9th, and 10th ribs and the linea alba

 
31. 

Transversus abdominis
 

ORIGIN: outer third of the inguinal ligament, inner rim of the crest of the ilium, inner surface of the cartilage of the lower 6 ribs, and the thoracolumbar fascia

INSERTION: crest of the pubis, the iliopectineal line, and the linea alba

 
32. 

Erector spinae
 

ORIGINS & INSERTIONS: in general, these muscles attach the spinous and transverse processes of the vertebrae to each other and to the pelvis, ribs, and skull

 
33. 

Iliopsoas
 

ORIGIN: inner surface of ilium, base of the sacrum, and sides of the bodies of the last thoracic and all of the lumbar vertebrae

INSERTION: lesser trochanter of the femur

 
34. 

Sartorius
 

ORIGIN: notch between the anterior-superior and anterior-inferior spines of the ilium

INSERTION: anterior medial condyle of the tibia

 
35. 

Rectus femoris
 

ORIGIN: anterior-inferior iliac spine of the ilium

INSERTION: tibial tuberosity via the patella and patellar ligament

 
36. 

Tensor fasciae latae
 

ORIGIN: anterior iliac crest of the ilium

INSERTION: iliotibial band of fascia quarter of the way down

 
37. 

Pectineus
 

ORIGIN: space 1-inch wide on front of pubis just above the crest

INSERTION: rough line leading from the lesser trochanter down to the linea aspera

 
38. 

Adductor brevis
 

ORIGIN: front of the pubis just below the origin of the longus

INSERTION: lesser trochanter of upper quarter of the linea aspera

 
39. 

Adductor longus
 

ORIGIN: front of the pubis just below its crest

INSERTION: middle third of the linea aspera

 
40. 

Adductor magnus
 

ORIGIN: edge of the entire ramus of the pubis and the ischium, and the tuberosity of the ischium

INSERTION: whole length of the linea aspera and inner condyloid ridge

 
41. 

Gracilis
 

ORIGIN: inner edge of the descending ramus of the pubis

INSERTION: anterior medial surface of the tibia below the condyle

 
42. 

Gluteus maximus

 

ORIGIN: posterior quarter of the crest of the ilium, posterior surface of the sacrum near the ilium, and fascia of the lumbar area

INSERTION: gluteal line of femur and iliotibial band of fascia latae

 
43. 

Gluteus medius

 

ORIGIN: outer surface of the ilium just below the crest

INSERTION: posterior and middle surfaces of the greater trochanter of the femur

 
44. 

Gluteus minimus
 

ORIGIN: outer surface of the ilium below the origin of the gluteus medius

INSERTION: anterior surface of the greater trochanter of the femur

 
45. 

Piriformis`
 

ORIGIN: anterior surface of sacrum

INSERTION: greater trochanter of femur

 
46. 

Gemellus superior
 

ORIGIN: posterior ischium (ischial spine)

INSERTION: greater trochanter of the femur

 
47. 

Gemellus inferior

 

ORIGIN: ischial tuberosity

INSERTION: greater trochanter of femur

 
48. 

Obturator internus
 

ORIGIN: obturator foramen

INSERTION: greater trochanter of femur

 
49. 

Obturator externus

 

ORIGIN: obturator foramen

INSERTION: greater trochanter of femur

 
50. 

Quadratus femoris

 

ORIGIN: ischial tuberosity

INSERTION: just below greater trochanter of femur

 
51. 

Rectus femoris
 

ORIGIN: anterior-inferior iliac spine of the ilium

INSERTION: tibial tuberosity via the patella and patellar ligament

 
52. 

Vastus intermedius
 

ORIGIN: upper two-thirds of the anterior surface of femur

INSERTION: tibial tuberosity via the patella and patellar ligament

 
53. 

Vastus lateralis
 

ORIGIN: greater trochanter and lateral lip of the linea aspera

INSERTION: tibial tuberosity via the patella and patellar ligament

 
54. 

Vastus medialis
 

ORIGIN: whole length of the linea aspera

INSERTION: tibial tuberosity via the patella and patellar ligament

 
55. 

Sartorius
 

ORIGIN: notch between the anterior-superior and anterior-inferior spines of the ilium

INSERTION: anterior medial condyle of the tibia

 
56. 

Biceps femoris
 

ORIGINS: Long head: ischial tuberosity

Short head: lateral lip of linea aspera

INSERTIONS: Long head: lateral condyle of tibia

 
57. 

Semitendinosus
 

ORIGIN: ischial tuberosity

INSERTION: medial condyle of tibia

 
58. 

Semimembranosus
 

ORIGIN: ischial tuberosity

INSERTION: medial condyle of tibia

 
59. 

Gastrocnemius
 

ORIGIN: medial and lateral condyles of the femur

INSERTION: calcaneus via the calcaneus tendon (Achilles tendon)

 
60. 

Popliteus
 

ORIGIN: posterior surface of lateral epicondyle of femur

INSERTION: upper, posterior medial surface of tibia

 
61. 

Gracilis

 

ORIGIN: inner edge of the descending ramus of the pubis

INSERTION: anterior medial surface of the tibia below the condyle

 
62. 

Anterior tibialis

 

ORIGIN: upper two-thirds of the lateral surface of tibia and interosseous membrane

INSERTION: inner surface of medial cuneiform and the 1st metatarsal

 
63. 

Extensor digitorum longus
 

ORIGIN: lateral condyle of the tibia, proximal three-fourths of the fibula, and the interosseous membrane

INSERTION: middle and distal phalanges of the lateral four toes

 
64. 

Extensor hallucis longus

 

ORIGIN: middle half of the medial fibula and adjoining interosseous membrane

INSERTION: distal phalanx of the great toe (“hallucis” refers to the great toe)

 
65. 

Gastrocnemius
 

ORIGIN: medial and lateral condyles of the femur

INSERTION: calcaneus via the calcaneus tendon (Achilles tendon)

 
66. 

Soleus
 

ORIGIN: upper two-thirds of the posterior surfaces of the tibia and fibula

INSERTION: calcaneus via the calcaneus tendon (Achilles tendon)

 
67. 

Tibialis posterior
 

ORIGIN: posterior surface of the upper half of the interosseous membrane and the adjacent surfaces of the tibia and fibula

INSERTION: lower medial surfaces of the navicular and cuneiform bones, and bases of the 2 through 5 metatarsal bones

 
68. 

Flexor digitorum longus
 

ORIGIN: posterior surface of middle one-third of tibia

INSERTION: plantar surface of the base of the 3rd phalange of the 2nd through 5th toes

 
69. 

Flexor hallucis longus
 

ORIGIN: posterior surface of lower 2/3 of fibula

INSERTION: plantar surface of the base of the terminal phalange of the great toe

 
70. 

Plantaris
 

ORIGIN: posterior surface of the lateral epicondyle of the femur

INSERTION: tuberosity of the calcaneus via the Achilles tendon

 
71. 

Peroneus longus

 

ORIGIN: upper two-thirds of lateral surface of tibia and fibula

INSERTION: ventral surfaces of the 1st metatarsal and medial cuneiform

 
72. 

Peroneus brevis
 

ORIGIN: distal two-thirds of the fibula

INSERTION: tuberosity of the 5th metatarsal