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NBCE Part 1 > Set 8 Myology > Flashcards

Set 8 Myology Flashcards

1
Q

What are the deep muscles of the back?

A

multifidus, rotators, intertransversarii, interspinalis, iliocostals, longissimus, and spinalis

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2
Q

What muscles make up the erector spinae muscle group?

A

iliocostalis, longissimus, and spinalis

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3
Q

What deep back muscles originate on the transverse process?

A

multifidis, rotators, intertransversarii, longissimus

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4
Q

What deep back muscles originate on the spinous process?

A

interspinalis and spinalis

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5
Q

What deep back muscles originate on the ilium?

A

iliocostalis

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6
Q

What deep back muscles insert on the transverse process?

A

intertransversarii and longissimus

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7
Q

What deep back muscles insert on the spinous process?

A

multifidus, rotators, interspinalis, and spinalis

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8
Q

What deep back muscles insert on the lamina?

A

rotators

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9
Q

What deep back muscles insert on the ribs?

A

iliocostalis and longissimus

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10
Q

What innervates all deep back muscles EXCEPT intertransversarii?

A

spinal nerve dorsal rami

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11
Q

What innervates intertransversarii?

A

spinal nerve dorsal rami and ventral rami

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12
Q

What is the action of multifidus?

A

external/contralateral rotation

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13
Q

What is the action of rotators?

A

extension and rotation

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14
Q

What is the action of intertransversarii?

A

lateral flexion

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15
Q

What is the action of interspinalis?

A

extension

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16
Q

What is the action of iliocostalis?

A

extension and ipsilateral flexion

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17
Q

What is the action of longissimus?

A

extension and ipsilateral flexion

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18
Q

What is the action of spinalis?

A

extension and ipsilateral flexion

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19
Q

What is the origin and insertion of external and internal intercostals?

A

lower border of the rib to the upper border of the rib below

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20
Q

What are the muscles of the thorax?

A

external intercostals, internal intercostals, transverse thoracic and subcostalis

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21
Q

What is the innervation to the muscles of the thorax?

A

intercostal

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22
Q

What is the origin and insertion of transverse thoracic?

A

posterior sternum /xiphoid and costal cartilages 2-6

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23
Q

What is the origin and insertion of subcostalis?

A

inner, lower ribs near angles and upper borders of ribs 2 and below

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24
Q

What are the muscles of the anterior abdominal wall?

A

external oblique, internal oblique, transverse abdominus, rectus abdominis, cremaster

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25
Q

What is the origin and insertion of external oblique?

A

external surface of ribs 5-12 and iliac crest/ASIS/pubic tubercle/linea alba

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26
Q

What is the origin and insertion of internal oblique?

A

inguinal ligament/iliac crest/thoracolumbar fascia and lower 4 costal cartilages/linea alba/pubic crest/pectineal line

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27
Q

What is the origin and insertion of transverse abdominus?

A

inguinal ligament/iliac crest/thoracolumbar fascia/lower costal cartilages and linea alba/pubic crest/pectineal line

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28
Q

What is the origin and insertion of rectus abdominus?

A

pubic crest/pubic symphysis and xiphoid/costal cartilages 5-7

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29
Q

What is the origin and insertion of cremaster?

A

inguinal ligament/lower internal oblique and pubic tubercle/pubic crest

30
Q

What is the innervation of cremaster?

A

genitofemoral

31
Q

What is the innervation of rectus abdominus?

A

intercostal (T7-T11) and subcostal (T12)

32
Q

What is the innervation of transverse abdominus?

A

intercostal (T7-T11), subcostal (T12), iliohypogastric, and ilioinguinal - L1

33
Q

What is the innervation of internal oblique?

A

intercostal (T7-T11), subcostal (T12), iliohypogastric, and ilioinguinal - L1

34
Q

What is the innervation of external oblique?

A

intercostal (T7-T11) and subcostal (T12)

35
Q

What abdominal muscles compress the abdomen?

A

external oblique, internal oblique, and transverse abdominus

36
Q

What abdominal muscles flex the trunk?

A

external oblique and internal oblique

37
Q

What abdominal muscles are used for forced expiration?

A

external oblique and internal oblique

38
Q

What abdominal muscles depress the ribs?

A

transverse and rectus abdominis

39
Q

What is the function of cremaster?

A

retracts testis

40
Q

What is the origin and insertion of quadratus lumborum?

A

L3-L5 transverse processes/iliac crest/iliolumbar ligament and lower border of the last rib/L1-L3 transverse processes

41
Q

What is the origin and insertion of psoas major?

A

T12-L5 transverse processes/bodies/discs and lesser trochanter

42
Q

What is the origin and insertion of psoas minor?

A

T12-L1 bodies/discs and pectineal line/iliopectineal eminence

43
Q

What is the innervation of quadratus lumborum?

A

subcostal, L1-L3

44
Q

What is the innervation of psoas major?

A

L2-L3

45
Q

What is the innervation of psoas minor?

A

L1

46
Q

What is the action of quadratus lumborum?

A

depresses 12th rib and flexes trunk laterally

47
Q

What is the action of psoas major?

A

flexes thigh and trunk

48
Q

What nerve pierces psoas major?

A

femoral nerve

49
Q

What is the action of psoas minor?

A

aids in flexing of trunk

50
Q

What is the action of piriformis?

A

external rotation of the hip and abduction of the thigh

51
Q

What is the action of obturator internus?

A

external rotation of the thigh

52
Q

What is the action of pubococcygeus?

A

supports pelvic viscera

53
Q

What is the action of puborectalis?

A

resists abdominal pressure

54
Q

What is the action of iliococcygeus?

A

completes pelvic floor

55
Q

What is the action of sphincter urethrae?

A

M: constricts urethra F: blends with vaginal wall

56
Q

What is the action of ischiocavernosus?

A

M: erection F: constricts vaginal orifice (yes and no)

57
Q

What is the action of bulbospongiosus?

A

M: erection

58
Q

What are the branchial arches?

A

1,2,3,4,6

59
Q

What is the CN associated with the first branchial arch?

A

V3, mandibular trigeminal

60
Q

What is the CN associated with the second branchial arch?

A

VII, facial

61
Q

What is the CN associated with the third branchial arch?

A

IX glossopharyngeal

62
Q

What is the CN associated with the fourth branchial arch?

A

superior laryngeal of X vagus

63
Q

What is the CN associated with the sixth branchial arch?

A

inferior laryngeal of X vagus

64
Q

What is the innervation of piriformis?

A

S1-S2

65
Q

What is the innervation of obturator internus?

A

nerve to obturator internus

66
Q

What is the innervation of the levator ani muscles?

A

S3-S4 and pudenal

67
Q

What are the levator ani muscles?

A

pubococcygeus, puborectalis, and iliococcygeus

68
Q

What is the innervation of coccygeus?

A

S4-5

69
Q

What is the innervation of sphincter urethrae?

A

pudendal

70
Q

What does the pudendal nerve pass through?

A

the greater and lesser sciatic foramen

71
Q

What is the innervation of deep transversus perinei?

A

pudendal

72
Q

What is the innervation of ischiocavernosus, bulbospongiosus, and superficial transversus perinei?

A

perineal

NBCE Part 1 (40 decks)

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