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A&P 2 > Show me the muscles > Flashcards

Show me the muscles Flashcards

(77 cards)

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1
Q

Opponens pollicis

A

Opponens pollicis
Origin: carpal bones and the transverse carpal ligament
Insertion: Metacarpal 1
Action: Opposition of digit 1 to digits 2-5
Nerve: Median n

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2
Q

Abductor pollicis brevis

A 
Abductor pollicis brevis
Origin: carpal bones and the transverse carpal ligament
Insertion: Proximal phalanx of digit 1
Action: ABDuction of digit 1
Nerve: Median n
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3
Q

Flexor pollicis brevis

A

Flexor pollicis brevis
Origin: carpal bones and the transverse carpal ligament
Insertion: Proximal phalanx of digit 1
Action: Flexion of digit 1 at the MCP (metacarpophalangeal) joint
Nerve: Median & ulnar n

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4
Q

Adductor pollicis

A 
Adductor pollicis
Origin: Metacarpals 2 & 3
Insertion: Proximal phalanx of digit 1
Action: ADDuction of digit 1
Nerve: Ulnar n
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5
Q

Abductor digiti minimi

A

Abductor digiti minimi
Origin: carpal bones and the flexor retinaculum
Insertion: Base of proximal phalanx of digit 5
Action: ABDuction of digit 5
Flexion of digit 5 at the MCP joint
Nerve: ulnar nn

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6
Q

Flexor digiti minimi brevis

A

Flexor digiti minimi brevis
Origin: carpal bones and the flexor retinaculum
Insertion: Proximal and middle phalanx of digit 5
Action: Flexion of digit 5 at the MCP and PIP joints
Nerve: ulnar n

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7
Q

Opponens digiti minimi

A 
Opponens digiti minimi
Origin: carpal bones and the flexor retinaculum
Insertion: 5th metacarpal
Action: Opposes digit 5 slightly
Nerve: Ulnar n
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8
Q

Interosseous muscles: Palmar interossei

A 
Interosseous muscles: Palmar interossei
Origin: Metacarpals
Insertion: Proximal phalanx digits 2, 4 and 5
Action: ADDuction of digits 2, 4 and 5
Nerve: Ulnar n
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9
Q

Interosseous muscles: Dorsal interossei

A 
Interosseous muscles: Dorsal interossei
Origin: Metacarpals
Insertion: Proximal phalanx digits 2, 3 and 4
Action: ABDuction of digits 2, 3 and 4
Nerve: Ulnar n
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10
Q

Lumbricals

A

Lumbricals
Origin: Tendons of the flexor digitorum profundus
Insertion: Tendons of extensor digitorum; digits 2-5
Action: MCP flexion with PIP and DIP extension “intrinsic plus” position
Nerve: Median nerve digits 2 & 3
Ulnar nerve digits 4 & 5

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11
Q

Tibialis Anterior (leg)

A 
Tibialis Anterior
Origin: Proximal Lateral Tibia
Insertion: Planter surface: 1 base of MT I
Action: Dorsiflexion (stand on heal
Nerve: Peroneal nerve
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12
Q

Gastrocnemius

A

Gastrocnemius
Origin: Medial and lateral femoral condyles
Insertion: Calcaneus via calcaneal (or Achille’s) tendon
Action: knee flexion & Plantarflexion (stand on toe)
Nerve: Tibial nerve

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13
Q

Soleus

A 
Soleus
Origin: posterior tibia and fibula
Insertion: Calcaneus via calcaneal (or Achille’s) tendon
Action: Plantarflexion (point toe)
Nerve: Peroneal nerve
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14
Q 
Fibularis Longus (Peroneus Longus)
(Leg)
A 
Fibularis Longus (Peroneus Longus)
Origin: Proximal 1/3 fibula
Insertion: Plantar surface, 1 base of MTI, 2 Medial Cuneiform
Action: Plantarflexion, Eversion
Nerve: Peroneal nerve
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15
Q

Fibularis Brevis (Peroneus Brevis)

A 
Fibularis Brevis (Peroneus Brevis)
Origin: middle 1/3 fibula
Insertion: Dorsal surface, base of MT V
Action: Plantarflexion, Eversion
Nerve: Peroneal nerve
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16
Q

Fibularis Tertius (Peroneus Tertius)

A 
Fibularis Tertius (Peroneus Tertius)
Origin: distal 1/3 fibula
Insertion: dorsal surface MT V
Action: Dorsiflexion, eversion
Nerve: Peroneal nerve
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17
Q

Extensor Digitorum Longus

A

Extensor Digitorum Longus
Origin: Proximal lateral tibia, Anterior fibula
Insertion: Dorsal surface digits II-IV
Action: Extend digits II-V, Assists with dorsiflexion
Nerve: Peroneal nerve

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18
Q

Flexor digitorum brevis

A

Flexor digitorum brevis
Location: bottom of foot digits II-V
Action: flexion of digits II-V

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19
Q

Lumbricals (foot)

A

Lumbricals
Location: bottom of foot – under Flexor digitorum brevis
Action: Extension of PIP and DIP joints, Flexion of MTP joint

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20
Q

Abductor digiti minimi (foot)

A

Abductor digiti minimi
Location: Bottom of foot – along digit V
Action: Abduct and flexes digit V

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21
Q

Flexor hallucis brevis (foot)

A

Flexor hallucis brevis
Location: Under abductor hallucis brevis
Action: Flexion of MTP of the great toe (digit I)

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22
Q

Flexor digiti minimi (foot)

A

Flexor digiti minimi
Location: bottom of foot
Action: flexes digit V at MTP joint

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23
Q

Abductor hallucis brevis (foot)

A

Abductor hallucis brevis
Location: Medial side of foot
Action: Abductors digit I

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24
Q

Biceps brachii

A

Biceps brachii
Origin: Short head: Coracoid process of the scapula
Long head: Supraglenoid tubercle of the scapula
Insertion: Radial tuberosity of the radius
Action: Elbow flexion
Forearm supination
Nerve: Musculocutaneous n

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25
Brachialis
``` Brachialis Origin: Distal surface anterior humerus Insertion: Coronoid process of the ulna Action: Elbow flexion, stronger with forearm pronation Nerve: Musculocutaneous n ```
26
Brachioradialis
Brachioradialis Origin: Lateral supracondylar ridge of the humerus Insertion: Styloid process of the radius Action: Moves the forearm to neutral from pronation or supination Nerve: Radial n
27
Triceps brachii
Triceps brachii Origin: Lateral and medial heads: Posterior shaft of the humerus Long head: Infragleniod tubercle of the scapula Insertion: Olecranon process of the ulna Action: All 3 heads: Elbow extension Long head: Shoulder extension Nerve: Radial n
28
Pronator teres
``` Pronator teres Origin: Medial epicondyle of the humerus Insertion: Mid radius; lateral surface Action: Forearm pronation Nerve: Median n ```
29
Pronator quadratus
``` Pronator quadratus Origin: Distal ¼ anterior ulna Insertion: Distal ¼ anterior radius Action: Forearm pronation Nerve: Median n ```
30
Supinator
``` Supinator Origin: Posterolateral humerus; distal surface Posterior proximal ulna Insertion: Anterior proximal radius Action: Forearm supination Nerve: Radial n ```
31
Flexor carpi radialis
``` Flexor carpi radialis Origin: Medial epicondyle of the humerus Insertion: Anterior surface, base of metacarpal II Action: Wrist flexion Radial deviation Nerve: Median n ```
32
Palmaris longus
``` Palmaris longus Origin: Medial epicondyle of the humerus Insertion: Palmar aponeurosis Action: Wrist flexion Nerve: Median n ```
33
Flexor carpi ulnaris
Flexor carpi ulnaris Origin: Medial epicondyle of the humerus - Proximal ulna Insertion: Pisiform bone - Anterior surface, base of metacarpal V Action: Wrist flexion 0 Ulnar deviation Nerve: Ulnar n
34
Flexor digitorum superficialis
Flexor digitorum superficialis Origin: Medial epicondyle of the humerus - Anterior ulna and radius Insertion: Middle phalanx digits II-V Action: Flexion of proximal interphalangeal joints digits II-V Nerve: Median n
35
Flexor digitorum profundus
Flexor digitorum profundus Origin: Anterior ulna and radius (deep to FDS) Insertion: Distal phalanx digits II-V Action: Flexion of distal interphalangeal joints digits II-V Nerve: Median and ulnar nn
36
Extensor carpi radialis Longus
Extensor carpi radialis Longus Origin: Lateral supracondylar ridge of the humerus Insertion: Posterior surface, base of metacarpal II Action: Wrist extension Radial deviation Nerve: Radial n
37
Extensor carpi radialis brevis
Extensor carpi radialis brevis Origin: Lateral epicondyle of the humerus Insertion: Posterior surface, base of metacarpal III Action: Wrist extension Radial deviation Nerve: Radial n
38
Extensor carpi ulnaris
Extensor carpi ulnaris Origin: Lateral epicondyle of the humerus Insertion: Posterior surface, base of metacarpal V Action: Wrist extension Ulnar deviation Nerve: Radial n
39
Extensor digitorum
Extensor digitorum Origin: Lateral epicondyle of the humerus Insertion: Posterior surface digits II-V entirely Action: Extension of metacarpophalangeal joints II-V Extension of proximal and distal interphalangeal joints digits II-V Nerve: Radial n
40
Flexor pollicis longus
``` Flexor pollicis longus Origin: n/a Insertion: n/a Action: Flexion of interphalangeal joint digit I Nerve: n/a ```
41
Iliacus (Iliopsoas)
Iliacus (Iliopsoas) Origin: Internal surface of the ilium Insertion: Lesser trochanter of the femur Action: Hip flexion Nerve: Femoral nerve and L spinal nn segments 2-4
42
Psoas major (Iliopsoas)
``` Psoas major (Iliopsoas) Origin: Vertebral bodies L1-L5 Insertion: Lesser trochanter of the femur Action: Hip flexion Nerve: Femoral nerve ```
43
Rectus Femoris
Rectus Femoris Origin: Anterior Inferior Iliac Spine (AIIS); Ilium Insertion: Tibial tuberosity via the patellar tendon Action: Pelvis: Anterior tilt Hip: Flexion Knee: Extension Nerve: Femoral nerve
44
Gluteus maximus
Gluteus maximus Origin: Posterior ilium, Sacrum, Coccyx Insertion: Gluteal tuberosity of femur, Iliotibial band Action: Hip: Extension External rotation ABDuction (upper fibers), ADDuction (lower fibers) Pelvis: Posterior tilt Nerve: Inferior gluteal nerve
45
Gluteus medius
``` Gluteus medius Origin: External ilium Insertion: Greater trochanter of femur Action: Hip: ABD Increase hip stability during stance and gait Nerve: Superior gluteal nerve ```
46
Gluteus minimus
``` Gluteus minimus Origin: External ilium Insertion: Greater trochanter of femur Action: Hip: ABD Increase hip stability during stance and gait Nerve: Superior gluteal nerve ```
47
Tensor fascia latae
``` Tensor fascia latae Origin: Anterior ilium Insertion: Iliotibial band Action: Hip: Flexion Medial rotation Abducts Pelvis: Anterior tilt Nerve: Superior gluteal nerve ```
48
Hip Adductor: Brevis
``` Hip Adductor: Brevis Origin: Pubis Insertion: Linea aspera of femur Action: Hip: ADDuction Nerve: Obturator nerve ```
49
Hip Adductor: Longus
``` Hip Adductor: Longus Origin: Pubis Insertion: Linea aspera of femur Action: Hip: ADDuction Nerve: Obturator nerve ```
50
Hip Adductor: Magnus
``` Hip Adductor: Magnus Origin: Pubis Insertion: Linea aspera of femur Action: Hip: ADDuction Nerve: Obturator nerve ```
51
Gracilis
``` Gracilis Origin: Pubis, immediately lateral to pubic symphysis Insertion: Proximal medial tibia Action: Hip: ADDuction Knee: Flexion Medial rotation Nerve: Obturator nerve ```
52
Pectineus
``` Pectineus Origin: Pubis Insertion: Lesser trochanter Linea aspera Action: Hip adductor Hip flexion External rotation Nerve: Femoral nerve ```
53
Sartorius
``` Sartorius Origin: Anterior superior iliac spine of the ilium Insertion: Proximal medial tibia Action: Hip: Flexion ABDuction Internal rotation Knee: Flexion Pelvis: Anterior tilt Nerve: Femoral nerve ```
54
Tensor fascia latae
``` Tensor fascia latae Origin: Anterior ilium Insertion: Iliotibial band Action: Hip: Flexion Medial rotation Abducts Pelvis: Anterior tilt Nerve: Superior gluteal nerve ```
55
Sartorius
``` Sartorius Origin: Anterior Superior Iliac Spine (ASIS); Ilium Insertion: Proximal medial tibia Action: Pelvis: Anterior tilt Hip: Flexion External Rotation ABDuction Knee: Flexion Nerve: Femoral nerve ```
56
Rectus Femoris
Rectus Femoris Origin: Anterior Inferior Iliac Spine (AIIS); Ilium Insertion: Tibial tuberosity via the patellar tendon Action: Pelvis: Anterior tilt Hip: Flexion Knee: Extension Nerve: Femoral nerve
57
Vastus Lateralis
Vastus Lateralis Origin: Greater trochanter of femur; lateral aspect of the linea aspera Insertion: Tibial tuberosity via the patellar tendon Action: Knee Extension Nerve: Femoral nerve
58
Vastus Medialis
Vastus Medialis Origin: Greater trochanter of femur; lateral aspect of the linea aspera Insertion: Tibial tuberosity via the patellar tendon Action: Knee Extension Nerve: Femoral nerve
59
Vastus Intermedius
``` Vastus Intermedius Origin: Anterior femur; shaft Insertion: Tibial tuberosity via the patellar tendon Action: Knee Extension Nerve: Femoral nerve ```
60
Biceps Femoris (long head)
Biceps Femoris (long head) Origin: Long head: Ischial tuberosity; ischium Insertion: Head of fibula Action: Pelvis: posterior tilt Hip: Extension Knee: Flexion Nerve: Fibular (peroneal) nerve and Tibial nerve
61
Biceps Femoris
``` Biceps Femoris (short head) Origin: Short head: posterior femur; linea aspera Insertion: Head of fibula Action: Knee flexion Nerve: Tibial nerve ```
62
Semitendinosus
``` Semitendinosus Origin: Ischial tuberosity; ischium Insertion: Proximal medial tibia Action: Pelvis: posterior tilt Hip: Extension Knee: Flexion Nerve: Tibial nerve ```
63
Semimembranosus
``` Semimembranosus Origin: Ischial tuberosity; ischium Insertion: Medial condyle of the tibia Action: Pelvis: posterior tilt Hip: Extension Knee: Flexion Nerve: Tibial nerve ```
64
Pectoralis Major
Pectoralis Major Origin: Medial ½ clavicle, Sternum, Costal cartilages 1-7 Insertion: Lateral lip of the bicipital (intertubercular) groove of the humerus Action: Shoulder horizontal ADDuction Shoulder flexion Shoulder internal rotation Nerve: Anterior thoracic nn
65
Latissimus Dorsi
Latissimus Dorsi Origin: Posterior iliac crest, Thoracolumbar (thoracodorsal) fascia, Spinous processes T6-T12 Insertion: Medial lip of the bicipital (intertubercular) groove of the humerus Action: Shoulder extension Shoulder internal rotation Shoulder ADDuction Nerve: Thoracodorsal n
66
Deltoid
Deltoid Origin: Lateral ½ clavicle, Acromion process of scapula, Spine of the scapula Insertion: Deltoid tuberosity of the humerus Action: Anterior: Shoulder flexion and shoulder internal rotation Middle: Shoulder ABDuction Posterior: Shoulder extension and shoulder external rotation Nerve: Axillary n
67
Teres Major
Teres Major Origin: Inferior 1/3 lateral border of the scapula Insertion: Medial lip of the bicipital (intertubercular) groove of the humerus Action: Shoulder extension Shoulder internal rotation Shoulder ADDuction Nerve: Subscapular n
68
Coracobrachialis
``` Coracobrachialis Origin: Coracoid process of the scapula Insertion: Medial surface proximal humerus Action: Shoulder flexion Shoulder ADDuction Nerve: Musculocutaneous n ```
69
Teres Minor
Teres Minor Origin: Middle 1/3 lateral border of the scapula Insertion: Greater tubercle of the humerus Action: Increases the integrity/stability of the glenohumeral joint Shoulder external rotation Nerve: Axillary n
70
Infraspinatus
Infraspinatus Origin: Infraspinous fossa of the scapula Insertion: Greater tubercle of the humerus Action: Increases the integrity/stability of the glenohumeral joint Shoulder external rotation Nerve: Suprascapular n
71
Supraspinatus
Supraspinatus Origin: Supraspinous fossa of the scapula Insertion: Greater tubercle of the humerus Action: Increases the integrity/stability of the glenohumeral joint Assists with shoulder ABDuction Nerve: Suprascapular n
72
Subscapularis
Subscapularis Origin: Subscapular fossa of the scapula Insertion: Lesser tubercle of the humerus Action: Increases the integrity/stability of the glenohumeral joint Shoulder internal rotation Nerve: Subscapular n
73
Trapezius
Trapezius Origin: Occipital bone, Nuchal ligament, Spinous processes C7-T12 Insertion: Upper: Lateral 1/3 of clavicle and spine of scapula Middle and Lower: Spine of scapula Action: Upper: Scapular elevation **Fixed insertion actions: neck lateral flexion, rotation of the head to the contralateral side, neck extension** Middle: Scapular retraction Lower: Scapular Depression Nerve: Cervical spinal nerves 2-4 and Cranial nerve XI; Accessory n or Spinal accessory n segments 2-4
74
Pectoralis Minor
Pectoralis Minor Origin: Ribs 2-5 (some sources may note ribs 3-5) Insertion: Coracoid process of the scapula Action: Scapular depression, scapular protraction **Fixed insertion action: Elevation of ribs 2-5 (or 3-5)** Nerve: Anterior thoracic n
75
Serratus Anterior
Serratus Anterior Origin: Ribs 1-9 (some sources may note ribs 1-8) Insertion: Anterior surface, medial border of the scapula Action: Scapular protraction Nerve: Long thoracic n
76
Levator Scapulae
``` Levator Scapulae Origin: Transverse processes C1-C4 Insertion: Superior angle of the scapula Action: Scapular elevation **Fixed insertion action: Neck lateral flexion Nerve: Dorsal Scapular n ```
77
Rhomboid Minor and Major
``` Rhomboid Minor and Major Origin: Spinous processes C6-T4 Insertion: Medial border of the scapula Action: Scapular elevation with retraction Nerve: Dorsal scapular n ```

A&P 2 (7 decks)

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