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MSK Anatomy > All Muscles (Origin/Insertion, Innervation) > Flashcards

All Muscles (Origin/Insertion, Innervation) Flashcards

1
Q

Splenius

Location, Attachment, Fx, Nerve

A

Intrinsic, Deep Back

Thoracic SPs - Cervical SPs

Ipsilateral Rotation, Lateral Bend Spine, Extend Neck

Dorsal Rami

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2
Q

Erector Spinae

Location, Attachment, Fx, Nerve

A

Intrinsic, Deep Back

Pelvis to base of skull

Ipsilateral rotation, extension/lateral bend of spine

Dorsal Rami

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3
Q

Transversospinalis

Location, Attachment, Fx, Nerve

A

Intrinsic, Deep Back

Transverse P to SPs (2-4 vertebrae apart)

Contralateral rotation, extension, lateral bend

Dorsal rami

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4
Q

Trapezius

Location, Attachment, Fx, Nerve

A

Extrinsic, Superficial Back

Thoracic SP - scapular spine, acromion, clavicle

Rotate, retract scapula

Spinal Accessory Nerve (CN XI)

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5
Q

Latissimus Dorsi

Location, Attachment, Fx, Nerve

A

Extrinsic, Superficial Back

Lower SPs to lesser tubercle of humerus

Adduct, Extend, Medial Rotation of Arm

Subscapular nerve (posterior cord of brachial plexus)

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6
Q

Levator Scapulae

Location, Attachment, Fx, Nerve

A

Extrinsic Superficial Back

Transverse Processes of cervical spine - scapula

Elevate Scapula (shrug)

Ventral Rami

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7
Q

Rhomboids

Location, Attachment, Fx, Nerve

A

Extrinsic Superficial Back

SPs - scapula

Retract scapula (rowing)

Ventral Rami

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8
Q

Deltoid

Location, Attachment, Fx, Nerve

A

Shoulder

Clavicle, Scapular Spine, Acromion - Deltoid tuberosity of humerus

Arm extension, flexion, abduction

Axillary nerve

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9
Q

Pectoralis Major

Location, Attachment, Fx, Nerve

A

Shoulder

Clavicle, Sternum, Ribs - Greater tubercle of humerus

Adduct, flex, medial rotate arm

Medial/Lateral Pectoral Nerves

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10
Q

Serratus Anterior

Location, Attachment, Fx, Nerve

A

Shoulder

Ribs - Scapula

Protracts scapula (punching), and upward rotation

Long thoracic nerve

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11
Q

Teres major

Location, Attachment, Fx, Nerve

A

Shoulder

Scapula - lesser tubercle of humerus

Medial rotation, adduct, extend arm

Subscapular nerve

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12
Q

Supraspinatus

Location, Attachment, Fx, Nerve

A

Shoulder (Rotator Cuff)

Scapula - greater tubercle of humerus

Abduct Arm

Suprascapular nerve

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13
Q

Infraspinatus

Location, Attachment, Fx, Nerve

A

Shoulder (Rotator Cuff)

Scapula - greater tubercle of humerus

Lateral Rotate Arm

Suprascapular nerve

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14
Q

Subscapularis

Location, Attachment, Fx, Nerve

A

Shoulder (Rotator Cuff)

Scapula - lesser tubercle of humerus

Medial rotate arm

Subscapular nerve

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15
Q

Triceps brachii

Location, Attachment, Fx, Nerve

A

Posterior Arm

Scapula/Humerus - Olecranon (Ulna)

Extend/Adduct Arm, Extend Forearm

Radial Nerve

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16
Q

Biceps brachii

Location, Attachment, Fx, Nerve

A

Anterior Arm

Coracoid Process - Radial tuberosity

Flex/Abduct Arm, Flex/Supinate Forearm

Musculocutaneous Nerve

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17
Q

Brachialis

Location, Attachment, Fx, Nerve

A

Anterior Arm

humerus - ulnar tuberosity

Flex Forearm

Musculocutaneous nerve

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18
Q

Pronator Teres

Location, Attachment, Fx, Nerve

A

Anterior Forearm

Medial epicondyle of humerus- radius

Forearm pronation

Median nerve

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19
Q

Flexor carpi radialis

Location, Attachment, Fx, Nerve

A

Anterior forearm

medial epicondyle of humerus - 2nd metacarpal

Flex/abduct (radial deviate) wrist

Median nerve

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20
Q

Flexor digitorum superficialis

Location, Attachment, Fx, Nerve

A

Anterior forearm

Medial epicondyle/coronoid process of ulna - middle phalanges

Flex wrist/MCP/PIP

Median nerve

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21
Q

Flexor digitorum profundus

Location, Attachment, Fx, Nerve

A

Anterior forearm

Ulna/interosseous membrane - distal phalanges

Flex wrist/MCP/PIP/DIP

Median + Ulnar Nerves

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22
Q

Flexor pollicis longus

Location, Attachment, Fx, Nerve

A

Anterior forearm

Radius/interosseous membrane - distal thumb phalanx

Flex wrist, thumb (MCP/IP), abducts wrist (radial deviation)

Median nerve

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23
Q

Brachioradialis

Location, Attachment, Fx, Nerve

A

Posterior forearm

humerus - styloid process of radius

Flexes elbow

Radial nerve

24
Q

Extensor carpi radialis longus

Location, Attachment, Fx, Nerve

A

Posterior forearm

lateral epicondyle humerus a- 2nd metacarpal

Extend/Abduct Wrist

Radial Nerve

25
Q

Extensor digitorum

Location, Attachment, Fx, Nerve

A

Posterior Forearm

Lateral epicondyle humerus - dorsal expansion of digits

Extend wrist/MCP/PIP/DIP

Radial nerve

26
Q

Supinator

Location, Attachment, Fx, Nerve

A

Posterior Forearm

Lateral Epicondyle of humerus, anular ligament, radial collateral ligament, ulna - radius

Forearm supination

Radial nerve

27
Q

Abductor Pollicis longus

Location, Attachment, Fx, Nerve

A

Posterior Forearm

radius/interosseous membrane - 1st metacarpal

Abduct thumb

Radial Nerve

28
Q

Extensor Pollicis longus

Location, Attachment, Fx, Nerve

A

Posterior Forearm

Ulna/interosseous membrane - distal phalanx of thumb

Extend thumb

Radial Nerve

29
Q

Abductor Pollicis brevis

Location, Attachment, Fx, Nerve

A

Thenar

Scaphoid/Flexor Retinaculum - Proximal phalanx of thumb

Abduct thumb

Median Nerve

30
Q

Flexor pollicis brevis

Location, Attachment, Fx, Nerve

A

Thenar

Carpals/Flexor Retinaculum - Proximal Phalanx of thumb

Flex thumb

Median Nerve

31
Q

Abductor digiti minimi

Location, Attachment, Fx, Nerve

A

Hypothenar

Carpals - Proximal pinky

Abduct Pinky

Ulnar Nerve

32
Q

Flexor digiti minimi brevis

Location, Attachment, Fx, Nerve

A

Hypothenar

Carpals/Flexor Retinaculum - Proximal Pinky

Flex Pinky

Ulnar Nerve

33
Q

Dorsal Interossei

Location, Attachment, Fx, Nerve

A

Intrinsic Hand

Metacarpals - Proximal Phalanges

Abduct fingers; Flex MCP, Extend PIP/DIP

Ulnar Nerve

34
Q

Palmar Interossei

Location, Attachment, Fx, Nerve

A

Intrinsic Hand

Metacarpals - Proximal Phalanges

Adduct fingers; Flex MCP, Extend PIP/DIP

Ulnar Nerve

35
Q

Adductor Pollicis

Location, Attachment, Fx, Nerve

A

Intrinsic Hand (NOT Thenar)

2nd/3rd metacarpal - proximal thumb

adduct thumb

Ulnar nerve

36
Q

Lumbricals

Location, Attachment, Fx, Nerve

A

Intrinsic Hand

tendon of flexor digitorum - dorsal digital expansions

flex MCP, extend DIP/PIP

Median (1-2); Ulnar (3-4) Nerves

37
Q

Gluteus maximus

Location, Attachment, Fx, Nerve

A

Gluteals

Ilium/Sacrum - Iliotibial tract/greater trochanter of femur

Extend/Lateral Rotate Thigh

Inferior Gluteal Nerve

38
Q

Gluteus medius

Location, Attachment, Fx, Nerve

A

Gluteals

Ilium - Greater trochanter of femur

Abduct hip and medial rotation

Superior Gluteal nerve

39
Q

Piriformis

Location, Attachment, Fx, Nerve

A

Gluteals

Sacrum - greater trochanter of femur

Lateral Rotator

Sacral Plexus (ventral rami)

40
Q

Quadratus femoris

Location, Attachment, Fx, Nerve

A

Gluteals

Ischium - intertrochanteric crest

Lateral Rotator

Sacral Plexus

41
Q

Hamstrings

Location, Attachment, Fx, Nerve

A

Posterior Thigh

Ischial tuberosity - medial condyle/head of fibula

Thigh Extensor, Knee Flexor

Tibial Nerve (Sciatic) (Except short head: common fibular)

42
Q

Iliopsoas

Location, Attachment, Fx, Nerve

A

Anterior Thigh

ilium/lumbar spine - lesser trochanter of femur

Hip Flexor

Femoral Nerve/Lumbar Plexus

43
Q

Quadriceps femoris

Location, Attachment, Fx, Nerve

A

Anterior Thigh

Ilium/Femur Greater Trochanter - Tibial tuberosity (via patellar ligament)

Flex Hip, Extend Knee

Femoral Nerve

44
Q

Adductor Longus

Location, Attachment, Fx, Nerve

A

Medial Thigh

Pubis - linea aspera

Adduct hip

Obturator nerve

45
Q

Adductor hiatus

Location, Attachment, Fx, Nerve

A

Medial Thigh

Popliteal N/A/V run thru it
(ischium/pubis - linea aspera)

Adduct Hip

Obturator nerve

46
Q

Adductor Magnus

Location, Attachment, Fx, Nerve

A

Medial thigh

ischium/pubis - linea aspera

Adducts hip

Obturator nerve

47
Q

Gastrocnemius

Location, Attachment, Fx, Nerve

A

Posterior Leg

Medial/Lateral epicondyles of femur - calcaneal tuberosity via Achilles tendon

Plantar flex foot, knee flexion

Tibial nerve

48
Q

Soleus

Location, Attachment, Fx, Nerve

A

Posterior Leg

Head of tibia/fibula - calcaneal tuberosity via Achilles tendon

Plantar flex foot

Tibial nerve

49
Q

Flexor digitorum longus

Location, Attachment, Fx, Nerve

A

Posterior Leg

tibia - distal phalanges

Plantarflex foot, invert foot, flex toes at MTP/IP

Tibial nerve

50
Q

Tibialis Posterior

Location, Attachment, Fx, Nerve

A

Posterior Leg

Tibia/Fibula - tarsals

Plantarflex foot, invert foot

Tibial nerve

51
Q

Flexor hallucis longus

Location, Attachment, Fx, Nerve

A

Posterior Leg

Fibula - 1st distal phalanx

Plantarflex foot, invert foot, flex 1st toe at MTP/IP

Tibial nerve

52
Q

Tibialis anterior

Location, Attachment, Fx, Nerve

A

Anterior Leg

Tibia - tarsal

Invert/Dorsiflex foot

Deep fibular nerve

53
Q

Extensor digitorum longus (Location, Attachment, Fx, Nerve)

A

Anterior leg

Head of fibula - phalanges of little toes

Evert/Dorsiflex foot, Extend toes 2-5

Deep fibular nerve

54
Q 
Fibularis longus
(Location, Attachment, Fx, Nerve)
A

Lateral Leg

Head of fibula - 1st metatarsal

Evert/Plantarflex foot

Superficial fibular nerve

55
Q

Flexor digitorum brevis

Location, Attachment, Fx, Nerve

A

Plantar Foot

calcaneus - middle phalanges of toes 2-5

Flex toes

Medial plantar nerve

MSK Anatomy (4 decks)

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