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Comprehensive Exam Year 1 > Muscles > Flashcards

Muscles Flashcards

1
Q

Serratus Anterior

A

O: Ribs
I: Ventral scapula
A: Scapular abduction and upward rotation
N: Long thoracic n. (C5-7)

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2
Q

Trapezius

A

O: occiput and C7, T1-T5, T1-T12
I: Posterior lateral 1/3 of clavicle, scap spine
A: Scapular Elevation (upper), adduction/retraction (middle), depression/retraction (lower)
N: Spinal accessory n. (CN XI)

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3
Q

Levator Scapulae

A

O: C1-4
I: medial border of scapula
A: scapular elevation
N: Dorsal scapular nerve

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4
Q

Rhomboid major/minor

A

O: T2-5, C7-T1
I: Medial border of scapula
A: scapular adduction/retraction/downward rotation
N: Dorsal scapular nerve

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5
Q

Latissimus dorsi

A

O: T7, thoracolumbar fascia, iliac crest
I: Intertubercular groove
A: extends, adducts, and IR of humerus, depresses scapula
N: thoracodorsal n

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6
Q

Deltoid

A

O: clavicle, spine of scapula, acromion
I: deltoid tuberosity on humerus
A: Shoulder flx/horiz add (ant), shoulder extension and horizontal abd (post), shoulder abduction (middle)
N: Axillary n

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7
Q

Coracobrachialis

A

O: coracoid process of scap
I: Middle 1/3 of humerus
A: shoulder flx
N: Musculocutaneous n.

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8
Q

Supraspinatus

A

O: scapula
I: greater tubercle of humerus
A: shoulder abduction (15 degrees)
N: Suprascapular n.

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9
Q

Pec major

A

O: clavicle, sternum, and ribs
I: lateral lip of inter tubercular groove (humerus)
A: horizontal adduction and IR of humerus
N: lateral and medial pectoral n.

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10
Q

Subscapularis

A

O: Subscapular fossa on scapula
I: lesser tubercle of humerus
A: IR of humerus
N: subscapular nerve (upper and lower)

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11
Q

Infraspinatus

A

O: scapula
I: greater tubercle of humerus
A: ER of shoulder
N: suprascapular nerve

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12
Q

Teres Minor

A

O: lateral border of scapula
I: greater tubercle of humerus
A: ER of shoulder
N: axillary nerve

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13
Q

Teres major

A

O: inferior angle of scap
I: Intertubercle groove medially on humerus
A: IR and adduction of shoulder
N: lower sub scapular nerve

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14
Q

Biceps brachii

A

O: supraglenoid tubercle (long head), coracoid process (short head)
I: radial tuberosity
A: elbow flexion, forearm supination
N: musculocutaneous

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15
Q

Brachialis

A

O: distal 1/2 of humerus
I: coronoid process and ulnar tuberosity
A: elbow flexion
N: musculocutaneous

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16
Q

Coracobrachialis

A

O: coracoid process
I: mid 1/3 of humerus
A: flexes shoulder
N: musculocutaenous

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17
Q

Triceps brachii

A

O: Infraglenoid tubercle of scapula (long head) and the humerus (lateral/short heads)
I: olecranon process of ulna
A: extension of elbow and shoulder
N: radial n.

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18
Q

Anconeus

A

O: lateral epicondyle
I: olecranon of ulna
A: extension of forearm
N: radial n.

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19
Q

Pec minor

A

O: coracoid
I: ribs 3-5
A: elevates ribs, stretches arm forward
N: medial pectoral nerve

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20
Q

Pronator teres

A

O: medial epicondyle
I: lateral radius
A: pronation
N: median n

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21
Q

Flexor carpi radialis

A

O: medial epicondyle
I: 2nd MCP
A: flex elbow, wrist
N: median n

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22
Q

palmaris longus

A

O: medial epicondyle
I: flexor retinaculum
A: flex elbow, wrist
N: median n

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23
Q

flexor carpi ulnaris

A

O: medial epicondyle
I: pisiform
A: flex elbow and wrist
N: ulnar

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24
Q

flexor digitorum superficialis

A

O: medial epicondyle and radial head
I: mid phalanges
A: flex PIP, MCP, wrist
N: median

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25
Q

Flexor digitorum profundus

A

O: proximal 3/4 of ulna
I: distal phalanges
A: flex DIP, PIP, MCP, wrist
N: 2/3 median, 4/5 ulnar

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26
Q

flexor pollicis longus

A

O: radius and interosseus membrane
I: base of distal phalanx of thumb
A: flex IP joint of thumb, MCP, CMC and wrist
N: median

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27
Q

pronator quadratus

A

O: distal 1/4 of ulna
I: distal 1/4 of radius
A: pronate forearm
N: median n

28
Q

Brachioradialis

A

O: supraepicondylar ridge of humerus
I: lateral radius
A: flexes elbow
N: radial nerve

29
Q

Extensor carpi radialis longus

A

O: supraepicondylar ridge
I: base of 2nd MCP
A: extend, abduct, adduct wrist
N: radial

30
Q

extensor carpi radialis brevis

A

O: lateral epicondyle
I: base of 3rd MCP
A: extend, abduct, adduct wrist
N: radial n

31
Q

Extensor digitorum/extensor digiti minimi

A

O: lateral epicondyle
I: extensor expansion
A: extend digits
N: radial n

32
Q

extensor carpi ulnaris

A

O: lateral epicondyle
I: base of 5th MCP
A: extend, abduct, or adduct wrist
N: radial n.

33
Q

Supinator

A

O: lateral epidcondyle
I: lateral radius
A: supinates forearm
N: posterior interosseus n.

34
Q

abductor pollicis longus

A

O: posterior surface or ulna, radius
I: base of 1st MCP
A: extend/abduct 1st digit
N: PIN

35
Q

extensor pollicis brevis/longus

A

O: posterior radius
I: PIP (brevis), DIP (Longus)
A: extend/abduct 1st digit
N: PIN

36
Q

Extensor indices

A

O: posterior ulna
I: 2nd extensor expansion
A: extend medial 4 digits
N: PIN

37
Q

Dorsal interossei vs. palmar interossei action

A

DAB – dorsal abduct digits

PAD – palmar adduct digits

38
Q

Iliacus and psoas major

A

O: Iliac crest, and T12-L5
I: lesser trochanter of femur
A: hip flexion
N: L2-l4, and femoral n.

39
Q

Sartorius

A

O: ASIS
I: medial tibia (pes anserinus)
A: flex, abd, and ER of thigh w/ knee flx
N: femoral n.

40
Q

Gluteus maximus

A

O: Ilium, iliac crest, sacrum ,coccyx
I: femur and IT band
A: hip extension, a little ER
N: inferior gluteal nerve

41
Q

Semitendinosus and semimembranosus

A

O: ischial tuberosity
I: medial tibia (tend – pes anserinus)
A: extends thigh, flexes leg
N: sciatic nerve

42
Q

Biceps femoris

A

O: ischial tuberosity (long head), and linea aspera of femur (short head)
I: fibular head
A: extends hip, flexes and ER of leg
N: sciatic nerve

43
Q

Gluteus medius

A

O: lateral ilium
I: greater trochanter of femur
A: abducts and IR of thigh, steadies pelvis when opposite leg is raised
N: superior gluteal n

44
Q

gluteus minimus

A

O: lateral ilium
I: anterior greater trochanter of femur
A: abducts and IR of thigh
N: superior gluteal n

45
Q

TFL

A

O: ASIS, iliac crest
I: IT tract that attaches to lateral tibia
A: hip abd w/ flexed hip
N: superior gluteal n

46
Q

pectineus

A

O: superior ramus of pubis
I: pectineal line of femur
A: adductor, flx, IR of thigh
N: femoral and obturator n

47
Q

Adductor longus, brevis, magnus (adductor part)

A

O: pubic ramus
I: linea aspera
A: adduction (and flex) of thigh
N: obturator n.

48
Q

Adductor magnus hamstring part

A

O: ischial tuberosity
I: tubercle
A: extends thigh
N: sciatic n.

49
Q

Gracilis

A

O: pubic ramus
I: pes anserinus (medial tibia)
A: adduction, flx, IR of thigh
N: obturator n.

50
Q

Obturator externus

A

O: obturator foramen
I: trochanteric fossa of femur
A: ER of hip
N: obturator n

51
Q

Obturator internus

A

O: pubis, ischium
I: medial side of greater trochanter
A: ER, abd of flexed thigh
N: obturator n

52
Q

Quadratus femorus

A

O: ischial tuberosity
I: femur
A: ER of thigh
N: nerve to quadratus femoris

53
Q

Gemellus superior

A

O: ischial spine
I: medial greater trochanter of femur
A: ER of thigh
N: nerve to obturator internus

54
Q

Gemellus inferior

A

O: ischial tuberosity
I: medial greater trochanter of femur
A: ER of hip
N: nerve to quadratus femoris

55
Q

Piriformis

A

O: sacrum
I: greater trochanter of femur
A: ER of thigh, abd of thigh w/ flexed hip
N: ventral root rami L5,S1,S2

56
Q

Popliteus

A

O: lateral condyle of femur
I: posterior tibia
A: unlocks knee by rotating femur on fixed tibia
N: tibial n

57
Q

Quadriceps femoris – rectus femoris, vastus lateralis, vastus medialis longus, vastus medialis oblique, vastus intermedius

A

O: RF- AIIS, VL- greater trochanter, VM- linea aspera, VI- femur
I: aponeurosis to patella, to tibia, to tibial tuberosity via quardiceps tendon
A: knee extension, and hip flx (RF)
N: femoral n.

58
Q

Gastrocnemius

A

O: lateral condyle of femur (lat head), medial condyle of femur (medial head)
I: calcaneus via achilles tendon
A: PF, some knee flex
N: tibial n

59
Q

Soleus

A

O: Fibular head and shaft
I: posterior calcaneus via calcaneal tendon
A: PF
N: tibial n

60
Q

Plantaris

A

O: lateral epicondyle of femur
I: calcaneal tuberosity via achilles tendon
A: PF
N: tibial n

61
Q

Tibialis posterior

A

O: posterior tibia
I: navicular, cuneiforms, cuboid, 2nd-4th MTT
A: PF and inversion
N: tibial

62
Q

Flexor digitorum longus

A

O: medial tibia
I: plantar base of distal phalanges of lateral 4 digits
A: flexes lateral 4 digits, PF foot
N: tibial n

63
Q

Flexor hallucis longus

A

O: distal 2/3 of fibula
I: base of distal phalanx of big toe
A: flexes toe joints
N: tibial n

64
Q

Tibialis anterior

A

O: lateral tibial condyle
I: medial cuneiform and base of first MT
A: DF and inversion
N: deep fibular n.

65
Q

Extensor digitorum longus, extensor hallucis longus

A

O: head of fibula, lateral tibial condyle
I: dorsal aponeuroses of distal phalanges
A: DF, eversion, extension of MTP, IP
N: deep fibular

66
Q

Peroneus longus and brevis

A

O: head of fibula (long), lateral fibula (short)
I: medial cuneiform and base of 1st MT (long), base of 5th MT (short)
A: eversion and PF
N: superficial fibular/peroneal nerve

Comprehensive Exam Year 1 (3 decks)

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