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MSK Palpation > Muscles > Flashcards

Muscles Flashcards

1
Q

Erector Spinae Group

A

Ori: posterior iliac crest/sacrum
Ins: TVPs, SPs, SCM
Fun: 1 - extend vertebral column
2 - extend head
3 - posture
4 - lateral flex. column
Nerve: Posterior Rami of Spinal Nerves

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2
Q

Sternocleidomastoid

A

Ori: medial clavicle, manubrium
Ins: mastoid process, superior nuchal line of occipital bone
Fun: 1 - lat flex. head and neck
2 - contralateral rotation head and neck
3 - ext. head and upper neck
4 - flex lower neck
5 - elevate sternum and clavicle (force inh)
Nerve: Spinal Accessory Nerve

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3
Q

Scalene Group

A

Ori: TVPs of C3-C7
Ins: ant and mid 1st rib, post 2nd rib
Fun: 1 - Lat flex of neck
2 - elevate 1st and 2nd ribs
during forced inhalation
Nerve: Anterior rami C3-C7

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4
Q

Temporalis

A

Ori: Temporal fossa and fascia
Ins: coronoid process, ramus of mandible
Fun: 1 - elevate mandible
2 - retract mandible
Nerve: Mandibular nerve (V3)

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5
Q

Masseter

A

Ori: Zygomatic arch
Ins: ramus of mandible
Fun: 1 - elevate mandible
2 - protract mandible
Nerve: Mandibular nerve (V3)

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6
Q

Rectus Abdominis

A

Ori: Pubic crest and pubic symphysis
Ins: Xiphoid process, cartilages of ribs 5,6,7
Fun: 1 - flex trunk
2 - posterior pelvic tilt
3 - compress ab contents
Nerve: Intercostal Nerves (T6-T12)

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7
Q

External Abdominal Obliques

A

Ori: External surface lower 8 ribs
Ins: Linea alba, pubic tubercle, anterior iliac crest
Fun: 1 - Flex trunk
2 - Contralateral rotation trunk
3 - compress ab contents
Nerve: Intercostal Nerves (T7-T12)

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8
Q

Rhomboid Major and Minor

A

Ori: m- SPs of C7 and T1
M - SPs of T2-T5
Ins: m - medial border scap and root of spine
M - medial border scap and inf. spine
Fun: 1 - Retraction of scaps
2 - Elevate scaps
3 - Downward rotation of scaps
Nerve: Dorsal Scapular

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9
Q

Trapezius

A

Ori: Occipital protuberance, ligamentum nuchae, C7-T12
Ins: Lateral clavicle, acromion, spine of scap
Fun: Upper - elevate and upward rot scap
Middle - retract scaps
Lower - depress and upward rot scap
Nerve: Spinal Accessory Nerve

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10
Q

Latissimus Dorsi

A

Ori: SPs T7-L5, Crest of ilium and sacrum, lowest 4 ribs, thoracolumbar fascia
Ins: Intertubercular groove of humerus
Fun: 1 - ext of arm
2 - add of arm
3 - med rot of arm
4 - anterior pelvis tilt
Nerve: Thoracodorsal Nerve

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11
Q

Serratus Anterior

A

Ori: Upper 9 ribs
Ins: Anterior surface of medial border of scaps
Fun: 1 - Protraction of scaps
2 - Upward rot of scaps
Nerve: Long Thoracic Nerve

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12
Q

Pectoralis Major

A

Ori: Medial clavicle, sternum, costal cartilages ribs 1-7
Ins: Bicipital groove of humerus
Fun: 1- flex arm
2 - add of arm
3 - med rot of arm
4 - horizontal add of arm
Nerve: Medial and Lateral Pectoral Nerves

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13
Q

Deltoid

A

Ori: Lateral clavicle, acromion, spine of scap
Ins: Deltoid tuberosity of humerus
Fun: Abd of shoulder
Nerve: Axillary Nerve

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14
Q

Subscapularis

A

Ori: Subscapular fossa
Ins: Lesser tubercle of humerus
Fun: Med rot of shoulder
Nerve: Upper and Lower Subscapularis Nerves

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15
Q

Supraspinatus

A

Ori: Supraspinous fossa
Ins: Greater tubercle of humerus
Fun: Abd of shoulder joint
Nerve: Suprascapular nerve

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16
Q

Infraspinatus

A

Ori: Infraspinous fossa
Ins: Greater tubercle of humerus
Fun: Lat rot of shoulder
Nerve: Suprascapular Nerve

17
Q

Teres Major

A

Ori: Inferior lateral border scap
Ins: Medial lip of intertubercular groove
Fun: 1 - Ext shoulder joint
2 - Add shoulder joint
3 - Med rot shoulder joint
Nerve: Upper and Lower Subscapular Nerve

18
Q

Teres Minor

A

Ori: Superior lateral border scap
Ins: Greater tubercle of humerus
Fun: Lat rot of shoulder
Nerve: Axillary Nerve

19
Q

Biceps Brachii

A

Ori: Coracoid process of scap, supraglenoid process of scap
Ins: radial tuberosity
Fun: 1 - flex forearm
2 - flex arm
3 - supinate forearm
Nerve: Musculocutaneous Nerve

20
Q

Triceps Brachii

A

Ori: Infraglenoid process of scap, posterior surface humerus
Ins: Olecranon process
Fun: 1 - ext arm
2 - ext forearm
Nerve: Radial Nerve

21
Q

Pronator Teres

A

Ori: Medial epi of humerus and coronoid process of ulna
Ins: Middle of lateral surface radius
Fun: pronate forearm
Nerve: Median Nerve

22
Q

Flexor Carpi Radialis

A

Ori: Medial epi of humerus
Ins: Base of 2nd and 3rd MC
Fun: 1 - flex wrist
2 - radial deviation
Nerve: Median Nerve

23
Q

Flexor Carpi Ulnaris

A

Ori: Medial epi of humerus, olecranon process and posterior border ulna
Ins: Base of 5th MC, hook of hamate, pisiform
Fun: 1 - flex wrist
2 - ulnar deviation
3 - elbow flexion
Neve: Ulnar Nerve

24
Q

Flexor Digitorum Superficialis

A

Ori: Medial epi of humerus, coronoid process of ulna, anterior border radius
Ins: Base of middle phalanges fingers 2-5
Fun: 1 - flex fingers 2-5 at MCPs and
PIPs
2 - Flex wrist
Nerve: Median Nerve

25
Q

Extensor Carpi Radialis Longus

A

Ori: Lateral supracondylar ridge of humerus
Ins: base of 2nd MC
Fun: 1 - Ext wrist
2 - Radial deviation
Nerve: Radial Nerve

26
Q

Brachioradialis

A

Ori: Lat supracondylar ridge of humerus
Ins: Lat radius proximal to styloid
Fun: Flex forearm
Nerve: Radial Nerve

27
Q

Extensor Digitorum

A

Ori: Lat epi of humerus
Ins: Distal and middle phalanges fingers 2-5
Fun: 1 - ext fingers 2-5
2 - ext wrist joint
3 - ext elbow joint
Nerve: Radial Nerve

28
Q

Abductor Pollicis Longus

A

Ori: Middle of radius, ulna, interosseous membrane
Ins: Base of 1st MC
Fun: 1 - abd thumb at CMC joint
2 - ext thumb at CMC joint
3 - radial deviation
Nerve: Radial Nerve

29
Q

Abductor Pollicis Brevis

A

Ori: Flexor retinaculum, scaphoid and trapezium tubercles
Ins: Proximal phalanx of thumb
Fun: Abd thumb
Nerve: Median Nerve

30
Q

Flexor Pollicis Brevis

A

Ori: Flexor retinaculum, trapezium
Ins: Proximal phalanx of thumb
Fun: Flex thumb
Nerve: Median Nerve

31
Q

Dorsal Interossei

A

Ori: Adjacent sides of metacarpals
Ins: Base of proximal phalanges and DDE of fingers 2,3,4
Fun: 1 - Abd of fingers 2-4 at
MCPs
2 - Flex of fingers 2-4 at
MCPs
3 - Ext of fingers 2-4 PIP and DIP
Nerve: Ulnar Nerve

32
Q

Tensor Fascia Lata

A

Ori: ASIS, Iliac crest
Ins: Tibia via IT band
Fun: 1 - flex hip joint
2 - abd. hip joint
3 - med rot hip joint
4 - anterior pelvic tilt
Nerve: Superior Gluteal Nerve

33
Q

Sartorius

A

Ori: ASIS
Ins: Medial surface tibia
Fun: 1 - flex hip joint
2 - abd. hip joint
3 - lat rot hip joint
4 - flex knee joint
5 - med. rot knee joint
Nerve: Femoral Nerve

34
Q

Biceps Femoris

A

Ori: Ischial tuberosity, Linea aspera
Ins: Head of fibula, lat condyle of tibia
Fun: 1 - flex knee joint
2 - ext hip joint
3 - lat rot knee joint
Nerve: Sciatic Nerve

35
Q

Semitendinosus

A

Ori: Ischial tuberosity
Ins: Proximal medial aspect of the tibia
Fun: 1 - flex knee joint
2 - ext hip joint
3 - med rot knee joint
Nerve: Sciatic Nerve

36
Q

Rectus Femoris

A

Ori: ASIS, groove of acetabulum
Ins: Pase of patella via quad tendon, tibial tuberosity
Fun: 1 - ext of knee joint
2 - flex of hip joint
Nerve: Femoral Nerve

37
Q

Vastus Medialis

A

Ori: Intertrochanteric line of femur, lines aspects, supracondylar line
Ins: Medial border of patella via quad tendon, tibial tuberosity
Fun: ext. of knee
Nerve: Femoral Nerve

38
Q

Adductor Muscles Group

A

Ori: Pubic ramus and ischium
Ins: Linea aspera
Fun: 1 - add of hip
2 - flex of hip joint
3 - lat rot of hip joint
Nerve: Obturator Nerve

39
Q

Gastrocnemius

A

Ori: Med and Lat condyles of femur
Ins: Calcaneus (via schilles tendon)
Fun: 1 - plantar flex ankle joint
2 - flex knee joint
Nerve: Tibial Nerve

MSK Palpation (3 decks)

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