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Ortho Anatomy ft. MM > Myology > Flashcards

Myology Flashcards

1
Q

Sternocleidomastoid

A

O: Mastoid Process

I:

  • Sternal Manubrium
  • Sternal 1/3 Clavicle

In: Accessory N.

Fx:

  • Head Extension
  • Lateral Tilt
  • Contralateral Rotation
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2
Q

Trapezius

A

O:

  • External occipital protuberance
  • Superior Nuchal Line
  • SP C7-T12

I:

  • Scapular Spine
  • Acromial 1/3 clavicle

In: Accessory N. (CN XI)

Fx:

  • Shoulder Elevation
  • Scapular ER
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3
Q

Rhomboids

A

O:

  • Major: SP T2-T5
  • Minor: SP C7-T1

I: Medial Scapula

In: Dorsal Scapular N.

Fx: Scapular Adduction and Rotation

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4
Q

Levator Scapulae

A

O: TP C1-C4

I: Superomedial Scapula

In: C3-C4

Fx: Scapular elevation + rotation

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5
Q

Latissimus Dorsi

A

O:

  • SP T6-S5
  • Illium

I: Crest of LT

In: Thoracodorsal N.

Fx:

  • Adduction Humerus
  • Flexion Humerus
  • IR Humerus
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6
Q

Pectoralis Major

A

O:

  • Clavicle
  • Sternum
  • Ribs 1-7

I: Crest of GT

In: Medial & Lateral Pectoral N.

Fx: Shoulder Adduction & IR

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7
Q

Pectoralis Minor

A

O: Ribs 1-5

I: Coracoid Process (conjoint tendon)

In: Medial Pectoral N.

Fx: Scapular Protraction

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8
Q

Serratus Anterior

A

O: Ribs 1-12

I: Medial Scapula

In: Long Thoracic N.

Fx: Scapular Retraction

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9
Q

Subclavius

A

O: 1st rib

I: Inf. Clavicle

In: N. to Subclavius

Fx: Clavicle Stabilization

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10
Q

Deltoid

A

O:

  • Clavicle
  • Acromion
  • Scapular Spine

I: Deltoid Tuberosity

In: Axillary N.

Fx:

  • Shoulder Abduction
  • Shoulder Extension
  • Shoulder Flexion
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11
Q

Supraspinatus

A

O: Supraspinous Fossa

I: GT

In: Suprascapular N.

Fx: Shoulder Abduction

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12
Q

Infraspinatus

A

O: Infraspinous Fossa

I: GT

In: Suprascpular N.

Fx: Shoulder ER

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13
Q

Teres Minor

A

O: Lateral boarder scapula

I: GT

In: Axillary N.

Fx: Shoulder ER

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14
Q

Teres Major

A

O: Lateral boarder scapula

I: Crest LT

In: Subscapular N.

Fx:

  • Shoulder Adduction
  • Shoulder Extension
  • Shoulder IR
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15
Q

Subscapularis

A

O: Subscapular Fossa

I: Lesser Tuberosity

In: Subscapular N.

Fx: Shoulder IR

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16
Q

Coracobrachialis

A

O: Coracoid Process

I: Proximal, medial 1/3 humerus

In: Musculocutaneous N.

Fx:

  • Shoulder Flexion
  • Shoulder Adduction
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17
Q

Biceps Brachii

A

O:

  • Long Head: Supraglenoid Tubercle
  • Short Head: Coracoid Proess

I: Radial Tuberosity

In: Musculocutaneous N.

Fx:

  • Forearm Supination
  • Elbow Flexion
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18
Q

Brachialis

A

O: Anterior Distal 1/2 Humerus

I: Ulnar Tuberosity

In: Musculocutaneous N., Radial N.

Fx: Elbow Flexion

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19
Q

Triceps Brachii

A

O:

  • Long Head: Infraglenoid Tubercle
  • Lateral Head: Superolateral Humerus
  • Medial Head: Inferomedial Humerus

I: Olecranon

In: Radial N.

Fx: Elbow Extension

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20
Q

Pronator Teres

A

O: Medial Epicondyle

I: Radial Shaft

In: Median N.

Fx: Forearm Pronation

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21
Q

Flexor Carpi Radialis (FCR)

A

O: Medial Epicondyle

I: Base of 2nd & 3rd metacarpal

In: Median N.

Fx: Wrist flexion and radial deviation

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22
Q

Flexor Digitorum Superficialis (FDS)

A

O: Medial epicondyle

I: Volar aspect, middle phalanx 2-5

In: Median N.

Fx:

  • PIP Flexion
  • MCP Flexion
  • Wrist Flexion
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23
Q

Palmaris Longus

A

O: Medial epicondyle

I: Palmar aponeurosis

In: Median N.

Fx: Anchors palmar fascia/skin

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24
Q

Flexor Carpi Ulnaris (FCU)

A

O:

  • Humeral Head: Medial epicondyle
  • Ulnar Head: olecranon

I: Base of 4th & 5th Metacarpals

In: Ulnar N.

Fx: Wrist flexion & ulnar deviation

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25
Flexor Digitorum Profundus (FDP)
O: Proximal 1/3 of anteromedial ulna I: Volar aspect, base of distal phalanx 2-5 In: 2/3: AIN, 4/5 Ulnar N. Fx: * **DIP Flexion** * PIP Flexion * MCP Flexion * Wrist Flexion
26
Flexor Pollicis Longus (FPL)
O: Proximal Radius I: Base Distal Phalanx D1 In: AIN Fx: Thumb IP Flexion
27
Pronator Quadratus (PQ)
O: Volar aspect, distal 1/3 ulna I: Volar aspect, distal 1/3 radius In: AIN Fx: Forearm pronation
28
Brachioradialis
O: Prox 2/3 alteral supracondylar ridge of the humerus I: Lateral aspect distal radius In: Radial N. Fx: * Elbow Flexion (in mid-pronation) * Wrist radial deviation
29
Extensor Carpi Radialis Longus (ECRL)
O: Distal 1/3 lateral supracondylar ridge of humerus I: Radial aspect 2nd metacarpal In: Radial N. Fx: Wrist extension & radial deviation
30
Extensor Carpi Radialis Brevis (ECRB)
O: Lateral epicondyle I: Base of 2nd & 3rd metacarpal In: PIN Fx: Wrist flexion & ulnar deviation
31
Extensor Digitorum Communus (EDC)
O: Lateral epicondyle I: Dorsal expansion 2-5 In: PIN Fx: * **Extension PIP/DIP (*via dorsal expansion*)** * **Extend MCP**
32
Extensor Digiti Minimi (EDM)
O: Common extensor tendon I: Dorsal expansion D5 In: PIN Fx: Extends 5th DIP/PIP/MCP
33
Extensor Carpi Ulnaris (ECU)
O: Lateral epicondyle I: Base of 5th metacarpal In: PIN Fx: Extension & ulnar deviation of wrist
34
Anconeus
O: Posterior aspect lateral epicondyle I: Lateral olecranon & proximal ulnar shaft In: Radial N. Fx: Extend elbow with triceps
35
Abductor Pollicis Longus (APL)
O: Posterior ulnar shaft I: * Base of 1st metacarpal * Trapezium In: PIN Fx: Abduct thumb
36
Extensor Pollicis Longus (EPL)
O: Posterolateral aspect, middle 1/3 ulnar shaft I: Base of distal phalanx D1 In: PIN Fx: Extend Thumb
37
Extensor Pollicis Brevis (EPB)
O: Posterior surface radius I: Base of Distal Phalanx D1 In: PIN Fx: Thumb extension
38
Extensor Indicis (EI)
O: Posterior ulna I: Extensor Exapansion D2 In: PIN Fx: Extend 1st digit (DIP, PIP, MCP)
39
Supinator
O: Proxima 1/3 ulna I: Latearl aspect, prox 1/3 radius In: PIN Fx: Supinate forearm
40
Abductor Pollicis Brevis
O: * Scaphoid Tuberosity * Trapezium Ridge * Transverse Carpal Ligament I: Lateral Base proximal 1st phalanx In: Median N. (Reccurent Branch) Fx: Abduction of Thumb, CMC & MCP joint
41
Flexor Pollicis Brevis
O: * Superficial head: trapezium * Deep head: trapezoid, capitate and palmar ligaments of distal carpal row I: Base of proximal 1st phalanx, extnesor expansion In: * Superficial: Median N. (recurrent branch) * Deep: Ulnar N. Fx: CMC & MCP Flexion of Thumb
42
Opponens Pollicis
O: * Trapezium * Transverse Carpal Ligament I: Radial Side of 1st Metacarpal Shaft In: Median N. (recurrent branch) Fx: Thumb opposition
43
Adductor Pollicis
O: * Oblique Head: Capitate, Bases of 2nd and 3rd metacarpals * Transverse Head: proximal 2/3 of palmar surface of 3rd metacarpal I: Ulnar side of base of 1st proximal phalanx In: Ulnar N. Fx: CMC adduction of thumb
44
Abductor Digiti Minimi
O: Pisiform I: Ulnar side, base of 5th proximal phalanx In: Ulnar N. Fx: MCP abduction of 5th digit
45
Flexor Digiti Minimi
O: * Hamate * Transverse Carpal Ligament I: Ulnar Side of proximal 5th phalanx In: Ulnar N. Fx: MCP Flexion 5th digit
46
Opponens Digiti Minimi
O: * Hook of Hamate * Transverse carpal ligament I: Ulnar boarder of entire 5th metacarpal In: Ulnar N. Fx: MCP flexion & rotation of 5th digit
47
Palmar Interossei
PAD 3 O: * 1st- ulnar side of 2nd MC * 2nd- radial side of 4th MC * 3rd - radial side of 5th MC I: Extensor expansion of 2nd, 4th & 5th digits In: Ulnar N. Fx: Adduction of 1st, 2nd, 4th and 5th digits towards midline of hand
48
Dorsal Interossei
DAB 4 **BIPENNATE** O: * 1st lateral head- ulnar side of 1st MC * 1st medial head - radial side of 2nd MC * 2nd, 3rd, 4th spaces between metacarpals I: * 1st - radial side 2nd proximal phalanx * 2nd - radial side of 3rd * 3rd- ular side of 3rd * 4th - ulnar side of 4th In: Ulnar N. Fx: Abduction 2nd, 3rd and 5th finger from midline
49
Lumbricals
O: Tendon of FDP I: Extensor expansion on dorsal and radial side of each digit In: * 1st & 2nd: Median N. * 3rd & 4th: Ulnar N. Fx: * MCP flexion digits 2-5 * DIP & PIP extension digits 2-5
50
Illiacus
O: Illiac Fossa I: Lesser Trochanter In: Femoral N. Fx: Flexes Hip
51
Pectineus
O: Pectineal Line of Pubis I: Pectineal Line fo Femur In: * Obturator N. * Femoral N. Fx: * Hip Flexion * Hip Abduction * Hip Internal Rotation
52
Psoas
O: Transverse Process L1-L5 I: Lesser Trochanter In: Femoral N. Fx: * Hip Flexion * Lateral Flexion Trunk
53
Rectus Femoris
O: * Straight Head: AIIS * Reflected Head: groove above acetabulum I: Quads tendon to Patella In: Femoral N. Fx: * Flexes Hip * Extends Knee
54
Sartorius
O: ASIS I: Gerdy's Tubercle Medial Tibia In: Femoral N. Fx: * Knee Flexion * Ext Rotation Hip * Abduction Hip
55
Adductor Magnus
O: Inferior Pubic Ramus & Ischial Tuberosity I: Linea aspera to adductor tubercle In: Obturator N (Posterior Division) & Sciatic (Tibial Fibres) Fx: Hip Abduction & Extension
56
Adductor Brevis
O: Inf Pubic Ramus I: Linea Aspera/pectineal Line In: Obturator N. (Posterior) Fx: * Hip Adduction * Assists in Hip Flexion
57
Adductor Longus
O: Anteiror Pubic Ramus I: Linea Aspera In: Obturator (Ant) Fx: * Adducts Hip * Assists in Hip Flexion
58
Gracilis
O: Inferior pubic symphasis/pubic arch I: Anteriomedial Aspect of Tibia (Pes) In: Obturator (A) Fx: * Hip Adduction * Knee Flexion
59
Gluteus Maximus
O: Illium & posterior gluteal line I: IT Band to gluteal tuberosity of femur In: Inferior Gluteal N. Fx: * Hip Extension * Hip External Rotation * Hp Abduction
60
Piriformis
O: Anteiror Sacrum I: Piriformis Fossa In: N. to Piriformis Fx: * Hip External Rotation * Hip Flexion
61
Obturator Externus
O: Ischiopubic Ramus (Obturator Membrande) I: Trochlear Fossa In: Obturator N. Fx: Ext. Rotate Hip
62
Obturator Internus
O: Ischipubic Ramus/Obturator Membrane I: Medial greater trochanter In: N. to Obturator Internus Fx: Hip ER
63
Superior Gemellus
O: Outer ischial spine I: Medial greater trochanter In: N. to Obturator Internus Fx: * Hip ER * Help adduct in flexion
64
Inferior Gemellus
O: Ischial Tuberosity I: Medial Greater Trochanter In: N. to Quadratus Femoris Fx: * Hip ER * Help adduct in flexion
65
Quadratus Femoris
O: Ischial Tuberosity I: Quadrate line of femur In: N. to Quadratus Femoris Fx: Hip ER
66
Gluteus Medius
O: Illium between posterior and anterior gluteal lines I: Greater trochanter In: Superior Gluteal N. Fx: * Hip Abduction * Hip IR
67
Gluteus Minimus
O: Illium between posterior and anterior gluteal lines I: Anteiror boarder of greater trochanter In: Superior Gluteal N. Fx: * Hip Abduction * Hip IR
68
Tensor Fascia Lata
O: Anterior iliac crest I: IT Band, to Gerdy's Tubercle In: Superior Gluteal N. Fx: * Abduct Hip * Hip IR * Assists in Knee Extension
69
Vastus Lateralis
O: Intertrochanteric Line I: Quadriceps tendon to patella In: Femoral N. Fx: Knee Extension
70
Vasus Medialis
O: Intertrochanteric Line I: Quadriceps tendon to patella In: Femoral N. Fx: Knee Extension
71
Vastus Intermedius
O: Superior 2/3 of anterior and lateral surfaces of femur I: Quadriceps tendon to patella In: Femoral N. Fx: Knee Extension
72
Articularis Genu
O: Anterior surface of distal femur, deep to vastus intermedius I: Synovial membrane of knee joint In: Femoral N. Fx: Pulls suprapatella bursa superiorly during extension to avoid impingement
73
Biceps Femoris
O: * Long Head: Ischial Tuberosity * Short Head: Lateral lip of linea aspera, lateral supracondylar ridge of femur I: Fibular Head & lateral tibial condyle In: * Long: Tibial * Short: Common Peroneal N. Fx: * Knee Flexion * Hip Extension (long head) * Tibia ER
74
Semitendinosus
O: Ischial Tuberosity I: Anteriomedial Aspect of Tibia (Pes) In: Tibial Fibres of Sciatic N. Fx: * Extend Thigh * Flex Knee * Tibia IR
75
Semimembranosus
O: ischial tuberosity I: 1. Posteiror Medial Tibial Condyle (Deep to MCL) 2. Oblique Popliteal Ligament 3. Posterior capsule & posterior horn of medial meniscus 4. Posterior Oblique Ligament 5. Expansion to Aponeurosis of Popliteal Muscle In: Tibial Fibres of Sciatic N. Fx: * Extend Thigh * Flex Knee * IR Tibia
76
Tibialis Anterior
O: Lateral Tibia, IOM I: * Medial Cuneiform * Base 1st Metatarsal In: Deep Peroneal N. Fx: 1. Ankle Dorsiflexion 2. Foot Inversion
77
Extensor Hallucis Longus (EHL)
O: Medial Fibula, IOM I: Base of Distal Phalanx, 1st toe In: Deep Peroneal N. Fx: 1. Ankle Dorsiflexion 2. Great Toe Extension
78
Extensor Digitorum Longus (EDL)
O: Lateral Tibial Condyle, Proximal Fibula I: Base of Distal Phalanx D2-D5 In: Deep Peroneal Fx: 1. Toe Extension 2. Ankle Dorsiflexion
79
Peroneus Tertius
O: Distal Fibula, IOM I: Base of 5th Metatarsal In: Deep Peroneal N. Fx: 1. Ankle Eversion 2. Ankle Plantarflexion
80
Peroneus Longus
O: Proximal Lateral Fibula I: * Medial Cuneiform - plantar surface * Base of 1st Metatarsal - plantar surface In: Superficial Peroneal N. Fx: 1. Ankle Eversion 2. Ankle Plantarflexion
81
Peroneus Brevis
O: Distal Lateral Fibula I: Base of 5th Metatarsal In: Superficial Peroneal N. Fx: Foot Eversion
82
Gastrocnemius
O: Posterior Medial and Lateral Condyle of Femur I: Calcaneus via Achilles In: Tibial N. Fx: Ankle Plantarflexion
83
Soleus
O: Posterior Fibular Head, Soleal Line I: Calcaneus via Achilles In: Tibial N. Fx: Ankle Plantarflexion
84
Plantaris
O: Lateral Femoral Supracondylar Line I: Calcaneus In: Tibial N. Fx: Ankle Plantarflexion *\*runs medial to achilles tendon. Deep to gastrocs, superfiical to soleus*
85
Popliteus
O: Posterior Surface of Tibia (above soleal line) I: Lateral Condyle, Anterior and Inferior to LCL origin In: Tibial N. Fx: 1. Unlocks Knee from Extension, Initiates Flexion 2. Tibia IR
86
Flexor Hallicus Longus (FHL)
O: Posterior Fibula I: Base of Distal Phalanx of Great Toe In: Tibial N. Fx: Great Toe Platar Flexion
87
Flexor Digitorum Longus (FDL)
O: Posterior Tibia I: Base of Distal Phalanx D2-D5 In: Tibial N. Fx: 1. Toe Plantar Flexion 2. Ankle Plantar Flexion
88
Tibialis Posterior
O: Posterior Tibia, IOM I: Navicular Tuberosity, Medial Cuneiform In: Tibial N. Fx: 1. Ankle Inversion 2. Ankel Plantar Flexion
89
Extensor Digitorum Brevis
O: Dorsal Surface Calcaneus I: Proximal Dorsal Aspect of Middle Phalanx D2-D4 In: Deep Peroneal N. Fx: Extend Digits 2-4
90
Extensor Hallucis Brevis
O: Dorsal Calcaneus I: Proximal Phalanx of D1 In: Deep Peroneal N. Fx: Extend Hallux
91
Adductor Hallucis
O: Metatarsals 2-4 I: Proximal Phalanx 1st Toe In: Lateral Plantar N. Fx: Adduct 1st Toe
92
Flexor Hallucis Brevis
O: Cuboid I: Medial Cuneiform to Proximal Phalanx of 1st Toe In: Medial Plantar N. Fx: Great Toe Flexion
93
Flexor Digitorum Brevis
O: Calcaneus I: Distal Phalanx D2-D5 In: Medial Plantar N. Fx: Lesser Toe Flexion
94
Abductor Halucis
O: Calcaneal Tuberosity I: Proximal Phalanx 1st Toe In: Medial Plantar N. Fx: Great Toe Abduction
95
Quadratus Plantae
O: Calcaneus I: FDL Tendon In: Lateral Plantar N. Fx: Assist FDL in Flexion of DIP Joint
96
Abductor Digiti Minimi of the Foot
O: Calcaneal Tuberosity I: Base of 5th Toe In: Lateral Plantar N. Fx: Abduct 5th Toe
97
Dorsal & Plantar Interossei of the Foot
Dorsal (4) - Abduct (DAB, Bipennate) Plantar (3) - Adduct (PAD, Unipennate) O: Metatarsal I: Proximal Phalanx In: Lateral Plantar N. Both in 4th plantar layer with tendon of peroneus longus and tib post.
98
Lumbricals of the Foot
O: Medial FDL Tendon I: Medial Proximal Phalanx & EDL Tendon D2-D5 In: * Lumbrical to 2nd Toe - Medial Plantar N. * Lumbricals to 3rd-5th Toes - Lateral Plantar N. Fx: Flex MCP Joints, Extend IP Joints
99
Levatores Cosatorum
O: Vertebrae - TP C7-T11 I: Ribs inferior to origin In: Dorsal Rami of thoracic spinal nerves. Fx: Raise ribs in inspiration
100
Serratus Posterior Superior
O: Vertebrae - spines of cervical and upper thoracic vertebrae I: Ribs In: Intercostal Nerves. Fx: Raise ribs in inspiration
101
Serratus Posterior Inferior
O: Verterbae - spines of lower thoraric and upper lumbar I: Ribs In: Intercostal Nerves. Fx: Lower Ribs in Expiration
102
Spenius
O: T1-T4 spinous process I: * Splenius capitus to skull * Splenic Cervicis to vertebrae In: Dorsal rami of spinal nerves. Fx: Extend neck and head (rotate in unilateral action)
103
Errector Spinae (Illiocostalis, Longissimus, Spinalis)
**Illiocostalis** O: Illium and ribs I: Ribs and transverse procesess **Longissiumus** O: Transverse processes I: Transverse processes **Spinalis** O: spinous processes I: spinous processes In: Dorsal rami of spinal nerves Fx: Extend trunk and vertebral column
104
Transversospinalis (Semispinalis, Multifidus, Rotatores)
O: All originate from transverse proceses I: All insert on spinous process superior to the origin * Semispinalis extend across 5-6 vertebrae * Multifidus - extend across 3-4 vertebrae * Rotatores - extend across 1-2 vertebrae In: Dorsal rami of spinal nerves Fx: Extend trunk in bilateral action, rotates vertebral column in unilateral action

Ortho Anatomy ft. MM (10 decks)

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