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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
Pectoralis major
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
26
Pectoralis minor
Origin: 3-5th ribs Insertion: Coracoid process of the scapula
27
Biceps Brachii short head
Origin: Coracoid process of the scapula Insertion: Radial tuberosity
28
Biceps Brachii long head
Origin: Supraglenoid tubercle of the scapula Insertion: Radial tuberosity
29
Brachialis
Origin: Distal anterior surface of the humerus Insertion: Coronoid process of the ulna
30
Coracobrachialis
Origin: Coracoid process of the scapula Insertion: Upper third of the frontal humerus
31
Latissiums Dorsi
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
Triceps Brachii long head
Origin: Infraglenoid tubercle of the scapula Insertion: Olecranon process of the ulna via the triceps brachii tendon
33
Triceps Brachii lateral head
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
Triceps Brachii medius
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
Triceps Brachii tendon and reflex
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
Brachioradialis
Origin: Distal lateral supracondylar ridge of the humerus and the lateral intermuscular septum Insertion: Lateral part of the styloid process of the radius
37
Bicipital aponeurosis, function
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
Pronator Teres
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
Flexor Carpi Radialis
Origin: Medial epicondyle of the humerus Insertion: Base of the 2nd and 3rd metacarpal bones
40
Palmaris Longus
Origin: Medial epicondyle of the humerus Insertion: Palmar aponeurosis
41
Flexor Carpi Ulnaris
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
Flexor Digitorum Superficialis
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
Flexor Digitorum Profundus of the hand
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
Extensor Carpi Ulnaris
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
Extensor Digitorum of hand
Origin: Lateral epicondyle of the humerus Insertion: Dorsal digital expansion of the 2nd-5th digits
46
Extensor Carpi Radialis Longus
Origin: Lateral supracondylar ridge of the distal humerus and the lateral intermuscular septum Insertion: Dorsal base of the 2nd metacarpal bone
47
Extensor Carpi Radialis Brevis
Origin: Lateral epicondyle of the humerus Insertion: Dorsal base of the 3rd metacarpal bone
48
Supinator
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
Extenso Digiti Minimi
Origin: Lateral epicondyle of the humerus Insertion: Dorsal digital expansion and the extensor digitorum tendon to the 5th digit
50
Anconeus
Origin: Lateral epicondyle of the humerus Insertion: Lateral side of the olecranon and superior part of the posterior ulna distally
51
Abductor Pollicis Longus
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
Extensor Pollicis Longus
Origin: Posterolateral surface of the ulna; the interosseous membrane Insertion: Base of the distal phalanx of the 1st digit
53
Extensor Pollicis Brevis
Origin: Posterior surface of the distal radius; the interosseous membrane Insertion: Base of the proximal phalanx of the 1st digit
54
Extensor Indicis
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
Pronator Quadratus
Origin: Anterior surface of the distal ulna Insertion: Anterior surface of the distal radius
56
Flexor Pollicis Longus
Origin: Interosseous membrane and the anterior surface of the radius Insertion: Palmar side of the distal phalanx of the 1st digit
57
Abductor Pollicis Brevis
Origin: Scaphoid and trapezium bones; the flexor retinaculum Insertion: Base of the proximal phalanx of the 1st digit
58
Opponens Pollicis
Origin: Trapezium and the flexor retinaculum Insertion: Radial margin of the shaft of the 1st metacarpal bone
59
Flexor Pollicis Brevis
Origin: Superficial head - the flexor retinaculum; Deep head - the capitate and trapezium bones Insertion: Base of the proximal phalanx of the 1st digit
60
Abductor Pollicis Oblique
Origin: Capitate bone; the bases of the 2nd and 3rd metacarpal bones Insertion: Base of the proximal phalanx of the 1st digit
61
Abductor Pollicis Transverse
Origin: Shaft of the palmar surface of the 3rd metacarpal Insertion: Base of the proximal phalanx of the 1st digit
62
Palmaris Brevis
Origin: Palmar aponeurosis overlaying the hypothenar eminence Insertion: Skin of the hypothenar eminence near the ulnar border
63
Flexor Digiti Minimi Brevis of Hand
Origin: Hook of Hamate and flexor retinaculum Insertion: Base of 5th proximal phalanx
64
Opponens Digiti Minimi of Hand
Origin: Hook of Hamate and flexor retinaculum Insertion: Ulnar margin of the 5th metacarpal bone
65
Deltoid
Origin: Acromion; the crest of the spine of the scapula; lateral one-third of the clavicle Insertion: Deltoid tuberosity of the humerus
66
Trapezius
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
Sartorius
Origin: Anterior superior iliac spine Insertion: Medial part of the tibia near the tibial tuberosity
68
Tensor Fascia Latae
Origin: Anterior superior iliac spine and the anterior part of the iliac crest Insertion: Iliotibial tract
69
Rectus Femoris
Origin: Anterior inferior iliac spine and the superior part of the acetabulum Insertion: Tibial tuberosity and the patella
70
Vastus Lateralis
Origin: Greater trochanter of the femur; lateral lip of the linea aspera; gluteal tuberosity Insertion: Tibial tuberosity via the patellar ligament
71
Vastus Medialis
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
Vastus Intermedius
Origin: Anterior and lateral surface of the femur Insertion: Tibial tuberosity via the patellar ligament
73
Iliotibial tract
Origin: Anterior superior iliac spine and the anterior part of the iliac crest Insertion: Iliotibial tract
74
Anteromedial Intermuscular Septum
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
Adductor magnus
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
Gracilis
Origin: Pubic symphisis and the inferior pubic ramus Insertion: Medial surface of the tibia

Ortho 101 (12 decks)

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