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Ortho 101 > Muscles: Origins and Insertions > Flashcards

Muscles: Origins and Insertions Flashcards

1
Q

Supraspinatus

A

Origin: Supraspinous fossa of the scapula

Insertion: Superior facet of the greater tubercle of the humerus

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2
Q

Infraspinatus

A

Origin: Infraspinous fossa of the scapula

Insertion: Posterior facet of the greater tubercle of the humerus

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3
Q

Teres minor

A

Origin: Middle half of the lateral border of the scapula

Insertion: Inferior facet of the greater tubercle

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4
Q

Subscapularis

A

Origin: Subscapular fossa

Insertion: Lesser tubercle

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5
Q

Iliacus

A

Origin: Iliac fossa and crest, ala of sacrum

Insertion: Lesser trochanter of the femur

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6
Q

Obturator Externus

A

Origin: Outer surface of obturator membrane, superior and inferior pubic rami

Insertion: Trochanteric fossa of the femur

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7
Q

Adductor Minimus

A

Origin: Inferior ramus of the pubis

Insertion: Gluteal ridge and thespace above the medial lip of the linea aspera of the femur

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8
Q

Adductor brevis

A

Origin: Inferior ramus of the pubis

Insertion: Pectineal line and medial lipe of the linea aspera of the femur

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9
Q

Articularis genus

A

Origin: Lower anterior surface of the femur above the patellar surface

Insertion: Articular capsule of the knee joint

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10
Q

Abductor digiti minimi of hand

A

Origin: Pisiform bone

Insertion: Base of the 5th proximal phalanx on the ulnar side; the dorsal digital expansion of the 5th digit

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11
Q

Palmar interosseous

A

Origin: Palmar surface of metacarpal

Insertion: lateral side of the digit

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12
Q

Psoas major

A

Origin: Anterior surfaces and lower borders of the transverse processes of T12-L5

Insertion: Lesser trochanter of the femur

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13
Q

Quadratus lumborum

A

Origin: Posterior part of the iliac crest and the iliolumbar ligament

Insertion: 12 rib and the transverse processes of vertebrae L1-L5

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14
Q

Supinator

A

Origin: Supinator crest and the fossa of the ulna; lateral epicondyle of the humerus

Insertion: Lateral one-third of the proximal radius

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15
Q

Pronator quadratus

A

Origin: Anterior surface of the distal ulna

Insertion: Anterior surface of the distal radius

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16
Q

Extensor pollicis brevis

A

Origin: Posterior surface of the distal radius

Insertion: Base of the proximal phalanx of the 1st digit

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17
Q

Adductor longus

A

Origin: Medial part of the superior ramus of the pubis

Insertion: Linea aspera of the femur

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18
Q

Pectineus

A

Origin: Pectin pubis

Insertion: Pectineal line of the femur

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19
Q

Quadratus femoris

A

Origin: Lateral border of the ischial tuberosity

Insertion: Quadrate line below the intertrochanteric crest of the femur

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20
Q

Adductor minimus

A

Origin: Inferior ramus of the pubis

Insertion: Gluteal ridge and the space above the meial lip of the linea aspera of the femur

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21
Q

Adductor brevis

A

Origin: Inferior ramus of the pubis

Insertion: Pectineal line and medial lip of the linea aspera

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22
Q

Adductor longus

A

Origin: Medial part of the superior ramus of the pubis

Insertion: Linea aspera of the femur

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23
Q

Popliteus

A

Origin: Lateral condyle of the femur

Insertion: Posterior surface of the tibia above the soleus

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24
Q

Tibialis posterior

A

Origin: Interosseous membrane and the adjacent margins of the tibia and fibula

Insertion: Navicular tuberosity; medial cuneiform; bases of the 2nd-4th metatarsal bones

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25
Q

Pectoralis major

A

Origin: Medial half of the clavicle; manubrium; body of the sternum; costal cartilages of ribs 1-6; anterior layer of the rectus sheath

Insertion: Crest of the greater tubercle of the humerus

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26
Q

Pectoralis minor

A

Origin: 3-5th ribs

Insertion: Coracoid process of the scapula

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27
Q

Biceps Brachii short head

A

Origin: Coracoid process of the scapula

Insertion: Radial tuberosity

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28
Q

Biceps Brachii long head

A

Origin: Supraglenoid tubercle of the scapula

Insertion: Radial tuberosity

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29
Q

Brachialis

A

Origin: Distal anterior surface of the humerus

Insertion: Coronoid process of the ulna

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30
Q

Coracobrachialis

A

Origin: Coracoid process of the scapula

Insertion: Upper third of the frontal humerus

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31
Q

Latissiums Dorsi

A

Origin: Inferior angle of the scapula; ribs 9-12; spinous processes ot T7-T12 vertebrae; the thoracolumbar fascia; the posterior one-third of the iliac crest

Insertion: Crest of the lesser tuberosity of the humerus and the intertubercular groove

32
Q

Triceps Brachii long head

A

Origin: Infraglenoid tubercle of the scapula

Insertion: Olecranon process of the ulna via the triceps brachii tendon

33
Q

Triceps Brachii lateral head

A

Origin: Posterolateral humerus proximal to the radial groove and the lateral intermuscular septum

Insertion: Olecranon process of the ulna via the triceps brachii tendon

34
Q

Triceps Brachii medius

A

Origin: Posteromedial surface of the distal humerus below the radial groove and the medial intermuscular septum

Insertion: Olecranon process of the ulna via the triceps brachii tendon

35
Q

Triceps Brachii tendon and reflex

A

Terminal end of the triceps brachii that inserts into the olecranon;
Reflex indicates motor and sensory functions of the C7 and C8 spinal nerves

36
Q

Brachioradialis

A

Origin: Distal lateral supracondylar ridge of the humerus and the lateral intermuscular septum

Insertion: Lateral part of the styloid process of the radius

37
Q

Bicipital aponeurosis, function

A

Origin: Radial tuberosity

Insertion: Antebrachial fascia

Function: Protects the brachial artery and the median nerve running beneath. Separates superficial structures from deep structures in the cubital fossa

38
Q

Pronator Teres

A

Origin: Medial epicondyle of the humerus; coronoid process of the ulna; the common flexor tendon

Insertion: Lateral radius distal to the insertion of the supinator muscle

39
Q

Flexor Carpi Radialis

A

Origin: Medial epicondyle of the humerus

Insertion: Base of the 2nd and 3rd metacarpal bones

40
Q

Palmaris Longus

A

Origin: Medial epicondyle of the humerus

Insertion: Palmar aponeurosis

41
Q

Flexor Carpi Ulnaris

A

Origin: Medial epicondyle of the humerus; posterior border of the proximal ulna; medial border of the olecranon

Insertion: Pisiform; the Hook of Hamate; the base of the 5th metacarpal bone

42
Q

Flexor Digitorum Superficialis

A

Origin: Humeroulnar head - the medial epicondyle of the humerus; Radial head - middle third of the radius

Insertion: Shafts of the middle phalanges of the 2nd-5th digits

43
Q

Flexor Digitorum Profundus of the hand

A

Origin: Posterior and medial borders of the ulna; the interosseous membrane

Insertion: Base and palmar surface of the distal phalanges of the 2nd-5th digits

44
Q

Extensor Carpi Ulnaris

A

Origin: Lateral epicondyle of the humerus and the posterior surface of the ulna

Insertion: Base of the medial side of the 5th metacarpal bone

45
Q

Extensor Digitorum of hand

A

Origin: Lateral epicondyle of the humerus

Insertion: Dorsal digital expansion of the 2nd-5th digits

46
Q

Extensor Carpi Radialis Longus

A

Origin: Lateral supracondylar ridge of the distal humerus and the lateral intermuscular septum

Insertion: Dorsal base of the 2nd metacarpal bone

47
Q

Extensor Carpi Radialis Brevis

A

Origin: Lateral epicondyle of the humerus

Insertion: Dorsal base of the 3rd metacarpal bone

48
Q

Supinator

A

Origin: Supinator crest and the fossa of the ulna; the lateral epicondyle of the humerus; radial collateral ligament and annular ligament of the radius

Insertion: Lateral one-third of the proximal radius

49
Q

Extenso Digiti Minimi

A

Origin: Lateral epicondyle of the humerus

Insertion: Dorsal digital expansion and the extensor digitorum tendon to the 5th digit

50
Q

Anconeus

A

Origin: Lateral epicondyle of the humerus

Insertion: Lateral side of the olecranon and superior part of the posterior ulna distally

51
Q

Abductor Pollicis Longus

A

Origin: Middle one-third of the posterior surface of the radius and ulna; the interosseous membrane

Insertion: Base of the 1st metacarpal bone at the radial side

52
Q

Extensor Pollicis Longus

A

Origin: Posterolateral surface of the ulna; the interosseous membrane

Insertion: Base of the distal phalanx of the 1st digit

53
Q

Extensor Pollicis Brevis

A

Origin: Posterior surface of the distal radius; the interosseous membrane

Insertion: Base of the proximal phalanx of the 1st digit

54
Q

Extensor Indicis

A

Origin: Posterolateral surface of the ulna and the interosseous membrane

Insertion: Tendons join the extensor digitorum tendon to the 2nd digit and insert into the posterior digital expansion

55
Q

Pronator Quadratus

A

Origin: Anterior surface of the distal ulna

Insertion: Anterior surface of the distal radius

56
Q

Flexor Pollicis Longus

A

Origin: Interosseous membrane and the anterior surface of the radius

Insertion: Palmar side of the distal phalanx of the 1st digit

57
Q

Abductor Pollicis Brevis

A

Origin: Scaphoid and trapezium bones; the flexor retinaculum

Insertion: Base of the proximal phalanx of the 1st digit

58
Q

Opponens Pollicis

A

Origin: Trapezium and the flexor retinaculum

Insertion: Radial margin of the shaft of the 1st metacarpal bone

59
Q

Flexor Pollicis Brevis

A

Origin: Superficial head - the flexor retinaculum; Deep head - the capitate and trapezium bones

Insertion: Base of the proximal phalanx of the 1st digit

60
Q

Abductor Pollicis Oblique

A

Origin: Capitate bone; the bases of the 2nd and 3rd metacarpal bones

Insertion: Base of the proximal phalanx of the 1st digit

61
Q

Abductor Pollicis Transverse

A

Origin: Shaft of the palmar surface of the 3rd metacarpal

Insertion: Base of the proximal phalanx of the 1st digit

62
Q

Palmaris Brevis

A

Origin: Palmar aponeurosis overlaying the hypothenar eminence

Insertion: Skin of the hypothenar eminence near the ulnar border

63
Q

Flexor Digiti Minimi Brevis of Hand

A

Origin: Hook of Hamate and flexor retinaculum

Insertion: Base of 5th proximal phalanx

64
Q

Opponens Digiti Minimi of Hand

A

Origin: Hook of Hamate and flexor retinaculum

Insertion: Ulnar margin of the 5th metacarpal bone

65
Q

Deltoid

A

Origin: Acromion; the crest of the spine of the scapula; lateral one-third of the clavicle

Insertion: Deltoid tuberosity of the humerus

66
Q

Trapezius

A

Origin:
Descending - external occipital protuberance; ligamentum nuchae; spinous process of C1-C7 vertebrae
Transverse - the aponeurosis of the spinous processes at the T1-T4 vertebrae
Ascending - the spinous processes of the T5-T12 vertebrae

Insertion:
Descending - lateral one-third of the clavicle
Transverse - medial side of the acromion
Ascending - upper crest and tubercle of the scapular spine

67
Q

Sartorius

A

Origin: Anterior superior iliac spine

Insertion: Medial part of the tibia near the tibial tuberosity

68
Q

Tensor Fascia Latae

A

Origin: Anterior superior iliac spine and the anterior part of the iliac crest

Insertion: Iliotibial tract

69
Q

Rectus Femoris

A

Origin: Anterior inferior iliac spine and the superior part of the acetabulum

Insertion: Tibial tuberosity and the patella

70
Q

Vastus Lateralis

A

Origin: Greater trochanter of the femur; lateral lip of the linea aspera; gluteal tuberosity

Insertion: Tibial tuberosity via the patellar ligament

71
Q

Vastus Medialis

A

Origin: Medial lip of the linea aspera of the femur and the intertrochanteric line

Insertion: The patella and tibial tuberosity via the patellar ligament

72
Q

Vastus Intermedius

A

Origin: Anterior and lateral surface of the femur

Insertion: Tibial tuberosity via the patellar ligament

73
Q

Iliotibial tract

A

Origin: Anterior superior iliac spine and the anterior part of the iliac crest

Insertion: Iliotibial tract

74
Q

Anteromedial Intermuscular Septum

A

The anteromedial intermuscular septum (subsartorial fascia) is a dense fascial triangle extending from the inferior medial border of the adductor magnus muscle to the vastus medialis muscle. The anteromedial intermuscular septum forms the roof of the lower half of the adductor canal with the sartorius muscle

75
Q

Adductor magnus

A

Origin: Inferior ramus of the pubis; the ischiopubic ramus; the ischial tuberosity

Insertion: Medial lip of the linea aspera and the adductor tubercle of the femur

76
Q

Gracilis

A

Origin: Pubic symphisis and the inferior pubic ramus

Insertion: Medial surface of the tibia

Ortho 101 (12 decks)

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