Anatomy OINA Flashcards
1
Q
Abductor Pollicis Brevis innervation and action:
A
Innervation: Median Nerve Action: Thumb abduction
2
Q
Flexor Pollicis Brevis Superficial head innervation and action:
A
Innervation: median nerve Action: Thumb MCP Flexion
3
Q
Flexor Pollicis Brevis Deep head innervation and action:
A
Innervation: Ulnar Action: Thumb MCP Flexion
4
Q
Opponens Pollicis innervation and action:
A
Innervation: median nerve Action: Oppose thumb
5
Q
Adductor Pollicis innervation and action:
A
Innervation: ulnar nerve Action: Thumb adduction and thumb MCP flexion
6
Q
Palmaris Brevis innervation and action:
A
Innervation: Ulnar Action: Wrinkles skin
7
Q
Abductor digiti minimi innervation and action:
A
Innervation:Ulnar nerve Action: Small finger abduction
8
Q
Flexor digiti minimi brevis innervation and action:
A
Innervation: Ulnar nerve Action: small finger MCP flexion
9
Q
Opponens digiti minimi innervation and action:
A
Innervation: ulnar nerve Action: oppose small finger
10
Q
Lumbricals 1&2 innervation and action:
A
Innervation: median nerve Action: Extend PIP, Flex MCP
11
Q
Lumbricals 3&4 innervation and action:
A
Innervation: Ulnar nerve Action: Extend PIP, Flex MCP
12
Q
Dorsal interosseous innervation and action:
A
Innervation: ulnar nerve Action: digit abduction and MCP flexion
13
Q
Palmar interosseous innervation and action:
A
Innervation: ulnar nerve Action: digit adduction
14
Q
Anconeus OINA:
A
O: Lateral epicondyle I: Posterior Proximal Ulna N: Radial A: Forearm extension
15
Q
Extensor Digitorum Communis OINA:
A
O: Lateral Epicondyle I: MCP: sagittal band, P2: central slip, P3: Terminal insertion N: Radial- PIN A: Digit extension
16
Q
Extensor Digiti Minimi OINA:
A
O: Lateral epicondyle I: Small finger MCP N: Radial- PIN A: Small finger extension
17
Q
Extensor Carpi Ulnaris OINA:
A
O: Lateral Epicondyle I: Base of 5th MC N: Radial- PIN A: hand extension and ulnar deviation
18
Q
Extensor Radialis Brevis OINA:
A
O: Lateral Epicondyle I: Base of 3rd MC N: Radial- PIN A: Wrist Extension
19
Q
Brachioradialis OINA:
A
O: Lateral Condyle I: Distal radius N: Radial A: Forearm flexion
20
Q
Extensor Carpi Radialis Longus OINA:
A
O: Lateral Condyle I: Base of 2nd MC N: Radial A Wrist extension
21
Q
Supinator OINA:
A
O: Posterior Medial Ulna I: Proximal Lateral Radius N: Radial- PIN A: Supinates forearm
22
Q
Abductor Pollicis Longus OINA:
A
O: Posterior Radius and Ulna I: Base of 1st thumb metacarpal N: Radial- PIN A: Abducts and extends thumb
23
Q
Extensor Pollicis Brevis OINA:
A
O: Posterior Radius I: Base of thumb proximal phalanx N: Radial- PIN A: Extends the thumb at MCP
24
Q
Extensor Pollicis Longus OINA:
A
O: Posterior Ulna I: Base of thumb distal Phalanx N: Radial- PIN A: Extends the Thumb at IP
25
Extensor Indicis Proprius OINA:
O: Posterior Ulna I: MCP, PIP, DIP or index finger N: Radial- PIN A: extends index finger
26
Pronator Teres OINA:
O: Medial Epicondyle I: Lateral radius N: Median A: Pronates and flex forearm
27
Flexor Carpi Radialis OINA:
O: Medial Epicondyle I: Base of 2nd and 3rd metacarpal N: Median A: Flex wrist and radial deviation
28
Palmaris Longus OINA:
O: Medial Epicondyle I: Flexor retinaculum/ Palmar aponeurosis N: Median A: Flex wrist
29
Flexor Carpi Ulnaris OINA:
O: Medial Epicondyle I: Pisiform, Hook of Hamate, 5th MC N: Ulnar A: Flex wrist and ulnar deviation
30
Flexor Digitorum Superficialis OINA:
O: Medial Epicondyle I: Middle Phalanges of digits N: Median A: Flex PIP joint and wrist
31
Flexor Digitorum Profundus OINA:
O: Anterior Ulna and interosseous membrane I: Distal phalanx of IF, MF, RF, SF N: Median- AIN (IF 1/2 MF) Ulnar (1/2 MF, RF, SF) A: Flex DIP and Wrist
32
Flexor Pollicis Longus OINA:
O: Anterior radius and proximal ulna I: Distal phalanx of thumb N: Median- AIN A: Flex thumb IP
33
Pronator Quadratus OINA:
O: Medial distal ulna I: Anterior distal radius N: Median- AIN A: Pronate forearm
34
Triceps OINA:
O: Long Head: Infraglenoid tubercle Lateral head: Proximal Posterior Humerus Medial Head: Distal Posterior Humerus I: Olecranon N Radial A: Elbow extensor
35
Brachialis OINA:
O: Distal Anterior Humerus I: Ulnar Tuberosity N: Medial: Musculocutaneous Lateral: Radial A: Flex Forearm
36
Biceps Brachii OINA:
O: Long head: Supraglenoid tubercle Short head: Coracoid Process I: Radial Tuberosity N: Musculocutaneous A: Flex and supinate forearm
37
Coracobrachialis OINA:
O: Coracoid process I: middle humerus N: Musculocutaneous A: Flex and adduct arm
38
Deltoid OINA:
O: Clavicle, Acromion, Spine of scapula I: Deltoid tuberosity N: Axillary A: Abducts arm
39
Pectoralis Major OINA:
O: Clavicle and Sternum I: Intertubercular Groove N: Lateral Pectoral and Medial Pectoral A: Internal Rotator and Adducts arm
40
Pectoralis Minor OINA:
O: Ribs 3-5 I: Coracoid process N: Medial pectoral A: Stabilizes scapula
41
Serratus anterior OINA:
O: Lateral ribs 1-8 I: Medial border of scapula N: Long thoracic A: Upward rotation of scapula
42
Subclavius OINA:
O: Rib 1 and costal cartilage I: Mid 3rd of clavicle N: Nerve to subclavius A: Depresses clavicle
43
Supraspinatus OINA:
O: Supraspinatus fossa I: Greater tubercle N: Subscapular A: Abduct arm
44
Infraspinatus OINA:
O: Infraspinatus fossa I: Greater tubercle N: subscapular A: External rotator
45
Teres Minor OINA:
O: Lateral scapula I: Greater tubercle N: Axillary A: External rotator
46
Subscapularis OINA:
O: Subscapular fossa I: Lesser tubercle N: upper and lower subscapular A: Internal rotator and adduct arm
47
Teres Major OINA:
O: Inferior angle of scapula I: Intertubercular groove N: Low subscapular A: Internal rotation and adduct arm
48
Trapezius OINA:
O: C7-T12 I: Clavicle, Acromion, Spine of scapula N: Cranial nerve XI A: elevate and rotate scapula
49
Latissimus Dorsi OINA:
O: T7-T12, Illiac crest I: Intertubercular groove N: Thoracodorsal A: Adduct, extend, internal rotation
50
Levator scapulae OINA:
O: C1-C4 I: Superior medial scapula N: Dorsal scapular, C3-C4 A: Elevate scapula
51
Rhomboid minor OINA:
O: C7- T1 I: Medial scapula N: dorsal scapular A: Adduct scapula
52
Rhomboid Major OINA:
O: T2- T5 I: Medial scapula N: Dorsal scapular A: Adduct scapula
53
Muscle of the Thenar compartment:
APB FPB OP
54
Muscles of the Adductor compartment:
Adductor Pollicis
55
Muscles of the Hypothenar compartment:
PB Abductor Digiti Minimi Flexor Digiti Minimi Brevis Opponens Digiti minimi
56
2-5 Intrinsic Muscles:
Lumbricals 1-4 Dorsal interosseous Palmar interosseous
57
2-5 Extrinsic muscles:
EDC EDM Extensor indicis proprius FDS FDP
58
Intrinsic thumb muscles:
APB OP FPB Adductor Pollicis 1st palmar interossei
59
Extrinsic Thumb muscles:
APL FPL EPL EPB
60
Common Extensor Tendon Muscles:
Anconeus Extensor Digitorum Communis Extensor Digiti Minimi Extensor carpi ulnaris Extensor carpi radialis
61
Deep Extensor muscles:
Supinator APL EPB EPL Extensor indicis proprius
62
Common flexor Tendon muscles:
Pronator Teres Palmaris longus Flexor Carpi radialis Flexor Carpi ulnaris Flexor digitorum superficialis
63
Deep Flexor muscles of the arm:
Flexor digitorum profundus Flexor Pollicis Longus Pronator Quadratus
64
Origin of Platysma:
Fascia: deltoid/ pectoralis major
65
Insertion of the platysma:
Mandible; skin
66
Action of the platysma:
Depress jaw
67
Innervation of Platysma:
CN 7
68
Origin of sternocleidomastoid:
Manubrium & clavicle
69
Insertion of the sternocleidomastoid:
Mastoid process
70
Action of the sternocleidomastoid:
Turn head to opposite side
71
Innervation of sternocleidomastoid:
CN 11
72
Origin of the anterior scalene muscles:
C3-6 transverse process
73
Insertion of anterior and middle scalene muscles:
1st rib
74
Action of the scalene muscles:
Laterally flexes neck and elevates 1st or 2nd rib
75
Innervation of the scalene muscles:
C5-C8 nerve roots
76
Origin of the posterior scalene muscles:
C4-6 transverse process
77
Origin of the middle scalene muscles:
C2-7 transverse process
78
Insertion of the posterior scalene muscle:
2nd rib
79
Origin of the serratus posterior superior:
Spinous process C7-T3
80
Insertion of the serratus posterior superior:
Ribs 2-5
81
Action of the serratus posterior superior:
Elevate ribs
82
Innervation of the serratus posterior superior:
Intercostal (T1-4)
83
Origin of serratus posterior inferior:
Spinous process T11-L3
84
Insertion of serratus posterior inferior:
Ribs 9-12
85
Action of serratus posterior inferior:
Depress ribs
86
Innervation of the serratus posterior inferior:
Intercostal (T9-12)
87
Origin of the splenius capitis:
Ligamentum nuchae
88
Insertion of the splenius capitis:
Mastoid and nuchal line
89
Action of the splenius capitis and cervicis:
Laterally flex and rotate neck to same side
90
Innervation of splenius capitis and cervicis:
Dorsal rami of inferior cervical nerves
91
Origin of the splenius cervicis:
Spinous process T1-6
92
Insertion of the splenius cervicis:
Transverse process C1-4
93
Deep intrinsic back muscles:
Splenius capitis Splenius cervicis Iliocostalis Longissimus Spinalis Semispinalis capitus Semispinalis (C&T) Multifidus (C2-S4) Rotatores Levator costarum Interspinales Intertransversarii
94
Muscles of the spinotransverse group (superficial layer):
Splenius capitis Splenius cervicis
95
Muscles of the sacrospinalis group (erector spinae):
Iliocostalis Longissimus Spinalis
96
Muscles of the transversospinalis group (deep)
Semispinalis capitus Semispinalis (C&T) Multifidus (C2-S4) Rotatores Levator costarum Interspinales Intertransversarii
97
Origin of the erector spinae:
Sacrum, iliac crest and lumbar spinous process
98
Insertion of the iliocostalis:
Ribs
99
Insertion of the longissimus:
T and C spinous process, mastoid process
100
Insertion of the spinalis:
T spinous process
101
Action of the erector spinae:
Laterally flex, extend, and rotate head and vertebral column
102
Innervation of the erector spinae:
Dorsal rami of spinal nerve
103
Origin of the semispinalis capitus:
Transverse process T1-6
104
Insertion of the semispinalis capitus:
Nuchal ridge
105
Action of the semispinalis capitus:
Extend head
106
Origin of the Semispinalis (C&T):
Transverse process
107
Insertion of the semispinalis (C&T):
Spinous process
108
Action of the semispinalis (C&T):
Extend, rotate opposite side
109
Origin of the multifidus (C2-S4):
Transverse process
110
Insertion of the multifidus (C2-S4):
Spinous process
111
Action of the multifidus (C2-S4):
Flex laterally, rotate opposite
112
Origin of the rotatores:
Transverse process
113
Insertion of the rotatores:
Spinous process +1
114
Action of the rotatores:
Rotate superior vertebrae opposite
115
Origin of the levator costarum
Transverse process
116
Insertion of the levator costarum:
Brevis: rib -1 Longus: rib -2
117
Action of the levator costarum:
Elevate rib during inspiration
118
Origin of the interspinales:
Spinous process
119
Insertion of the interspinales:
Spinous process +1
120
Action of the interspinales:
Extend column
121
Origin of the intertransversarii:
Transverse process
122
Insertion of the intertransversarii:
Transverse process +1
123
Action of the intertransversarii:
Laterally flex column
124
Innervation of the transversospinalis group:
Dorsal primary rami
125
Origin of the psoas major:
T12-L5 vertebrae
126
Insertion of the psoas major:
Lesser trochanter
127
Innervation of the psoas major:
Femoral
128
Action of the psoas major:
Flex hip
129
Origin of psoas minor:
T12-L1 vertebrae
130
Insertion of psoas minor:
Iliopubic eminence
131
Innervation of the psoas minor:
L1- ventral ramus
132
Action of the psoas minor:
Assists in hip flexion
133
Origin of illiacus:
Illiac fossa/ sacral ala
134
Insertion of illiacus:
Lesser trochanter
135
Innervation of illiacus:
Femoral
136
Action of the illiacus:
Flex hip
137
Tensor Fasciae Latae origin:
Iliac crest, ASIS
138
Tensor fasciae latae insertion:
Iliotibial band/ proximal tibia
139
Tensor Fasciae Latae innervation:
Superior Gluteal
140
Tensor Fasciae Latae action:
Abducts, flex, IR thigh
141
Gluteus Medius and minimus origin:
Ilium between anterior and posterior gluteal lines
142
Gluteus medius insertion:
Greater trochanter (posterior)
143
Gluteus medius innervation:
Superior gluteal
144
Gluteus minimus insertion:
Greater trochanter (anterior)
145
Gluteus minimus innervation:
Superior gluteal
146
Gluteus medius and minimus action:
Abducts, IR thigh
147
Hip Flexors:
Psoas Major and minor Iliacus
148
Hip abductors:
TFL Glute med Glute min
149
Hip extensors and external rotators:
Glute max Obturator externus
150
Gluteus Maximus origin:
Ilium, dorsal sacrum
151
Gluteus Maximus insertion:
ITB, gluteal tuberosity of the femur
152
Gluteus Maximus innervation:
Inferior gluteal
153
Gluteus Maximus Action:
Extend, ER thigh
154
Obturator externus origin:
Ischiopubic rami, obturator membrane
155
Obturator externus insertion:
Trochanteric fossa
156
Obturator externus innervation:
Obturator
157
Obturator externus action:
ER thigh
158
Short external rotators:
Piriformis Superior and inferior gemellus Obturator internus Quadratus femoris
159
Piriformis origin:
Anterior sacrum
160
Piriformis insertion:
Superior greater trochanter
161
Piriformis innervation:
N. To piriformis
162
Piriformis action:
ER thigh
163
Superior gemellus origin:
Ischial spine
164
Superior gemellus insertions:
Medial greater trochanter
165
Superior gemellus innervation:
N. To obturator internus
166
Superior gemellus action:
ER thigh
167
Obturator internus origin:
Ishopubic rami, obturator membrane
168
Obturator internus insertion:
Medial greater trochanter
169
Obturator internus innervation:
N. To obturator internus
170
Obturator internus action:
ER, abduct thigh
171
Interior gemellus origin:
Ischial tuberosity
172
Inferior gemellus insertion:
Medial greater trochanter
173
Inferior gemellus innervation:
N. To quadratus femoris
174
Inferior gemellus action:
ER thigh
175
Quadratus femoris origin:
Ischial tuberosity
176
Quadratus femoris insertion:
Intertrochanteric crest
177
Quadratus femoris innervation:
N. To quadratus femoris
178
Quadratus femoris action:
ER thigh
179
Articularis genus origin:
Distal anterior femoral shaft
180
Articularis genus insertion:
Synovial capsule
181
Articularis genus innervation:
Femoral
182
Articularis genus action:
Pulls capsule superiorly in extension
183
Sartorius origin:
ASIS
184
Sartorius insertion:
Proximal Medial tibia (Pes anserinus)
185
Sartorius innervation:
Femoral
186
Sartorius action:
Flex, ER hip
187
Rectus femoris origin:
AIIS Superior acetabular rim
188
Rectus femoris insertion:
Patella/ tibial tubercle
189
Rectus femoris innervation:
Femoral
190
Rectus femoris action:
Flex thigh, extend leg
191
Vastus lateralis origin:
Greater trochanter, lateral linea aspect
192
Vastus lateralis insertion:
Lateral patella/ tibia tubercle
193
Vastus lateralis innervation:
Femoral
194
Vastus lateralis action:
Extend leg
195
Vastus intermedius origin:
Proximal femoral shaft
196
Vastus intermedius insertion:
Patella/ tibia tubercle
197
Vastus intermedius innervation:
Femoral
198
Vastus intermedius action:
Extend leg
199
Vastus medialis origin:
Intertrochanteris line Medial linea aspera
200
Vastus medialis insertion:
Medial patella/ tibia tubercle
201
Vastus medialis innervation:
Femoral
202
Vastus medialis action:
Extend leg
203
Adductor longus origin:
Body of pubis (inferior)
204
Adductor longus insertion:
Linea aspera (mid 1/3)
205
Adductor longus innervation:
Obturator
206
Adductor longus action:
Adducts thigh
207
Adductor brevis origin:
Body and inferior pubic ramus
208
Adductor brevis insertion:
Pectineal line Linea aspera
209
Adductor brevis innervation:
Obturator
210
Adductor brevis action:
Adducts thigh
211
Adductor magnus origin:
Pubic ramus Ischial tuberosity
212
Adductor magnus insertion:
Linea aspera Add. Tubercle
213
Adductor magnus innervation:
Obturator Sciatic
214
Adductor magnus action:
Adducts and flex/ Extend/ IR leg
215
Pectineus origin:
Pectineal line of pubis
216
Pectineus insertion:
Pectineal line of femur
217
Pectineus innervation:
Femoral
218
Pectineus action:
Flex and adducts thigh
219
Semitendinosus origin:
Ischial tuberosity
220
Semitendinosus insertion:
Proximal medial tibia (pes anserinus)
221
Semitendinosus innervation:
Sciatic (tibial)
222
Semitendinosus action:
Extend thigh, flex leg
223
Semimembranosus origin:
Ischial tuberosity
224
Semimembranosus insertion:
Posterior medial tibial condyle
225
Semimembranosus innervation:
Sciatic (Tibial)
226
Semimembranosus action:
Extend thigh, flex leg
227
Biceps femoris long head origin:
Ischial tuberosity
228
Biceps femoris long head insertion:
Head of fibula
229
Biceps femoris long head action:
Extend thigh, flex leg
230
Biceps femoris short head:
Linea aspera, supracondylar line
231
Biceps femoris short head insertion:
Fibula Lateral tibia
232
Biceps femoris short head innervation:
Sciatic (peroneal)
233
Biceps femoris short head action:
Extend thigh, flex leg
234
Sciatic nerve is in what compartment?
Posterior
235
Femoral artery and vein is in what compartment?
Medial
236
What is in the anterior compartment of the lower leg?
Tibialis anterior Extensor Hallucis longus Extensor digitorum longus Peroneus tertius Deep peroneal nerve Anterior tibial artery and vein
237
What is in the lateral compartment of the lower leg?
Peroneus longus Peroneus brevis Superficial peroneal nerve
238
What is in the superficial posterior compartment of the lower leg?
Gastrocnemius Soleus Plantaris
239
What is in the deep posterior compartment of the lower leg?
Posterior tibialis Flexor hallucis longus Flexor digitorum longus Popliteus Tibial nerve Posterior tibial artery and vein Peroneal artery and vein
240
Tibialis anterior origin:
Proximal lateral tibia (Gerdy’s tubercle)
241
Tibialis anterior insertion:
Med. cuneiform, Plantar 1st metatarsal base
242
Tibialis anterior innervation:
Deep peroneal
243
Tibialis anterior action:
Dorsiflexion Invert foot
244
Extensor Hallucis longus origin:
Medial fibula Interosseous membrane
245
Extensor hallucis longus insertion:
Base of distal phalanx of great toe
246
Extensor hallucis longus innervation:
Deep peroneal
247
Extensor hallucis longus action:
Dorsiflex Extend great toe
248
Extensor digitorum longus origin:
Lateral tibia condyle and proximal fibula
249
Extensor digitorum longus insertion:
Base of middle and distal phalanges (4 toes)
250
Extensor digitorum longus innervation:
Deep peroneal
251
Extensor digitorum longus action:
Dorsiflex Extend lateral 4 toes
252
Peroneus tertius origin:
Distal fibula, Interosseous membrane
253
Peroneus tertius insertion:
Base of 5th metatarsal
254
Peroneus tertius innervation:
Deep peroneal
255
Peroneus tertius action:
Dorsiflex Evert foot
256
Peroneus longus origin:
Proximal lateral fibula
257
Peroneus longus insertion:
Plantar medial cuneiform 1st metatarsal base
258
Peroneus longus innervation:
Superficial peroneal
259
Peroneus longus action:
Plantar flex foot (1st ray)
260
Peroneus brevis origin:
Distal lateral fibula
261
Peroneus brevis insertion:
Base of 5th metatarsal
262
Peroneus brevis innervation:
Superficial peroneal
263
Peroneus brevis action:
Evert foot
264
Gastrocnemius origin:
Lateral and medial femoral condyles
265
Gastrocnemius insertion:
Calcaneus (via Achilles’ tendon)
266
Gastrocnemius innervation:
Tibial
267
Gastrocnemius action:
Plantar flex foot
268
Soleus origin:
Posterior fibular head/ soleal line of tibia
269
Soleus insertion:
Calcaneus (via Achilles’ tendon)
270
Soleus innervation:
Tibial
271
Soleus action:
Plantar flex foot
272
Plantaris origin:
Lateral femoral supracondylar line
273
Plantaris insertion:
Calcaneus
274
Plantaris innervation:
Tibial
275
Plantaris action:
Plantar flex foot
276
Popliteus origin:
Lateral femoral condyle (anterior and distal to LCL)
277
Popliteus insertion:
Proximal posterior tibia
278
Popliteus innervation:
Tibial
279
Popliteus action:
IR tibia/ knee (during swing phase)
280
Flexor hallucis longus origin:
Posterior fibula
281
Flexor hallucis longus insertion:
Base of distal phalanx of great toe
282
Flexor hallucis longus innervation:
Tibial
283
Flexor hallucis longus action:
Plantar flex great toe
284
Flexor digitorum longus origin:
Posterior tibia
285
Flexor digitorum longus insertion:
Base of distal phalanges of 4 toes
286
Flexor digitorum longus innervation:
Tibial
287
Flexor digitorum longus action:
Plantar flex lateral 4 toes
288
Tibialis Posterior origin:
Posterior tibia Fibula Interosseous membrane
289
Tibialis posterior insertion:
Plantar navicular cuneiforms MT bases
290
Tibialis posterior innervation:
Tibial
291
Tibialis posterior action:
Plantar flex and invert foot (in heel off phase)
292
Function of superior extensor retinaculum:
Covers tendons, nerves, vessels of anterior compartment at ankle
293
Function of the inferior extensor retinaculum:
Surrounds and covers tendons, etc. of anterior compartment in foot
294
Function of the flexor retinaculum:
Covers tendons of posterior compartment
295
Function of the superior and inferior peroneal retinaculum
Covers tendons and sheaths of lateral compartment at hind foot
296
Function of plantar aponeurosis:
Supports longitudinal arch Protects underlying structures Stabilizes foot in gait via the windlass mechanism
297
First plantar layer of the foot:
Abductor hallucis Flexor digitorum brevis Abductor digiti minimi
298
Abductor hallucis origin:
Calcaneal tuberosity Medial process
299
Abductor hallucis insertion:
Through med, sesamoid to proximal phalanx of great toe
300
Abductor hallucis innervation:
Medial plantar
301
Abductor hallucis action:
Abducts great toe
302
Abductor digiti minimi origin:
Calcaneal tuberosity Medial and lateral processes
303
Abductor digiti minimi insertion:
Lateral base of proximal phalanx of 5th toe
304
Abductor digiti minimi innervation
Lateral plantar
305
Abductor digiti minimi action:
Abducts small toe
306
Second plantar layer of the foot:
Quadratus plantae Lumbricals
307
Quadratus plantae origins:
Medial and lateral plantar calcaneus
308
Quadratus plantae insertion:
Lateral FDL tendon
309
Quadratus plantae innervation:
Lateral plantar
310
Quadratus plantae action:
Assists FDL with toe flexion
311
Lumbricals origin:
Separate FDL tendons
312
Lumbricals insertion:
Proximal phalanges Extensor expansion
313
Lumbricals innervation:
1: medial plantar 2-4: lateral plantar
314
Lumbricals action:
Flex MTP joint Extend IP joint
315
Third plantar layer of the foot:
Flexor hallucis brevis Adductor hallucis Flexor digiti minimi brevis
316
Adductor hallucis origin:
Oblique: base 2-4 MT Transverse: lateral 4 MTP
317
Adductor hallucis insertion:
Through lateral sesamoid to lateral proximal phalanx of great toe
318
Adductor hallucis innervation:
Lateral plantar
319
Adductor hallucis action:
Adducts great toe
320
Flexor digiti minimi brevis origin:
Base of 5th metatarsal
321
Flexor digiti minimi brevis insertion:
Base of proximal phalanx of small toe
322
Flexor digiti minimi brevis innervation:
Lateral plantar
323
Flexor digiti minimi brevis action:
Flex small toe
324
Fourth plantar layer of the foot:
Plantar interossei Dorsal interossei
325
Plantar interossei (3) origin:
Medial 3rd, 4th, 5th MT
326
Plantar interossei (3) insertion:
Medial proximal phalanges: toes 3-5
327
Plantar interossei (3) innervation:
Lateral plantar
328
Plantar interossei (3) action:
Adduct toes Flex MTPJ Extend LPJ
329
Dorsal interossei (4) origin:
Adjacent MT shafts
330
Dorsal interossei (4) insertion:
Medial proximal phalanx (2nd toe) Lateral proximal phalanx (toes 2-4)
331
Dorsal interossei (4) innervation:
Lateral plantar
332
Dorsal interossei (4) action:
Abduct toes
333
Dorsum layer of the foot:
Extensor hallucis brevis Extensor digitorum brevis
334
Extensor hallucis brevis origin:
Dorsolateral calcaneus
335
Extensor hallucis brevis insertion:
Base of proximal phalanx of great toe
336
Extensor hallucis brevis innervation:
Deep peroneal
337
Extensor hallucis brevis action:
Extends great toe at MCPJ
338
Extensor digitorum brevis origin:
Dorsolateral calcaneus
339
Extensor digitorum brevis insertion:
Base of proximal phalanx: toes 2-4
340
Extensor digitorum brevis innervation:
Deep peroneal
341
Extensor digitorum brevis action:
Extends lesser toes at MCPJ
