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APA1313 - Musculoskeletal Anatomy > axial skeleton - muscles of spine and rib cage > Flashcards

axial skeleton - muscles of spine and rib cage Flashcards

(71 cards)

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1
Q

origins of sternocleidomastoid

A

sternal head: superior manubrium

clavicular head: medial 1/3 of clavicle

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2
Q

insertion of sternocleidomastoid

A

mastoid process of temporal bone

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3
Q

actions of sternocleidomastoid

A

bilateral: head & neck extension
unilateral: lateral flexion & contralateral rotation

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4
Q

origin of anterior scalene

A

transverse processes of C3-C6

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5
Q

insertion of anterior & middle scalenes

A

1st rib

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6
Q

actions of anterior, middle, & posterior scalenes

A

bilateral: neck flexion
unilateral: lateral flexion and contralateral rotation
elevation of 1st & 2nd rib

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7
Q

origin of middle scalene

A

transverse processes of C2-C7

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8
Q

origin of posterior scalene

A

transverse processes of C5-C7

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9
Q

insertion of posterior scalene

A

2nd rib

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10
Q

origins of splenius capitis

A

ligamentum nuchae & spinous processes of C7-T3

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11
Q

insertions of splenius capitis

A

mastoid process of temporal bone & lateral portion of superior nuchal line of occiput

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12
Q

actions of splenius capitis

A

bilateral: head and neck extension
unilateral: lateral flexion and ipsilateral rotation

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13
Q

origin of splenius cervicis

A

spinous processes of T3-T6

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14
Q

insertion of splenius cervicis

A

transverse processes of C1-C3

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15
Q

actions of splenius cervicis

A

bilateral: neck extension
unilateral: lateral flexion & ipsilateral rotation

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16
Q

what are the deep back muscles (erector spinae)

A

iliocostalis, longissimus, & spinalis

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17
Q

origin of cervicis in iliocostalis

A

ribs 3-6

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18
Q

origin of thoracis in iliocostalis

A

ribs 7-12

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19
Q

origin of lumborum in iliocostalis

A

iliac crest & thoracolumbar aponeurosis

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20
Q

insertion of cervicis in iliocostalis

A

transverse processes of C4-C6

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21
Q

insertion of thoracis in iliocostalis

A

ribs 1-6

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22
Q

insertion of lumborum in iliocostalis

A

ribs 7-12

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23
Q

actions of iliocostalis

A

trunk extension & ipsilateral flexion of the trunk

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24
Q

origin of capitis in longissimus

A

transverse processes of T1-T4 & articular processes of C4-C7

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25
origin of cervicis in longissimus
transverse processes of T4-T5
26
origin of thoracis in longissimus
transverse process of L1-L5
27
insertion of capitis in longissimus
mastoid process
28
insertion of cervicis in longissimus
transverse processes of C2-C6
29
insertion of thoracis in longissimus
transverse processes of T1-L2 & ribs 9-10
30
actions of longissimus
trunk extension in head, cervical, and thoracic, trunk & head ipsilateral flexion
31
origin of capitis in spinalis
ligementum nuchae
32
origin of cervicis in spinalis
spinous processes of C7-T2
33
origin of thoracis in spinalis
spinous processes of T11-L2
34
insertion of capitis in spinalis
superior nuchal line of occipital bone
35
insertion of cervicis in spinalis
spinous processes of C2-C4
36
insertion of thoracis in spinalis
spinous processes of T1-T8
37
actions of spinalis
trunk extension in head, cervical, and thoracic ipsilateral flexion head & neck flexion
38
origin of semispinalis
transverse processes of C4-T12
39
insertions of semispinalis
spinous processes of C2-T4; | between inferior & superior nuchal lines in occipital bone
40
actions of semispinalis
trunk extension; | contralateral rotation of head, neck, & trunk
41
origin of quadratus lumborum
post iliac crest; | iliolumbar ligament
42
quadratus lumborum
transverse processes of L1-L4; | rib 12
43
actions of quadratus lumborum
trunk extension; lateral trunk flexion; depresses last rib during forced inhalation
44
what are the deepest back muscles?
intertransversarius, rotatores, multifidus, & interspinalis
45
origin of intertransversarius
transverse processes of C1-L5
46
insertion of intertransversarius
transverse processes of vertebra located above
47
action of intertransversarius
lateral flexion
48
origin of rotatores
transverse processes of C1-L5
49
insertion of rotatores
spinous processes of vertebra located above
50
action of rotatores
bilateral extension & contralateral rotation
51
origin of multifidus
post sacrum; posterior iliac spine; transverse processes of C5-L4
52
insertion of multifidus
spinous processes of vertebrae located 2-4 levels above
53
action of multifidus
bilateral extension & contralateral rotation
54
origin of interspinalis
spinous processes of C3-L5
55
insertion of interspinalis
spinous processes of vertebra located above
56
action of interspinalis
extension
57
what are the abdominal muscles?
external & internal obliques, rectus abdominis, & transversus abdominis
58
origin of external oblique
external surfaces of ribs 5-12
59
insertion of external oblique
iliac crest; pubic tubercle; linea alba
60
action of external oblique
bilateral trunk flexion; ipsilateral flexion; contralateral rotation
61
origin of internal oblique
thoracolumbar aponeurosis; iliac crest; inguinal ligament
62
insertion of internal oblique
internal surface of ribs 10-12; | abdominal aponeurosis
63
actions of internal oblique
bilateral trunk flexion; ipsilateral flexion; rotation
64
origin of rectus abdominis
pubic symphysis
65
insertion of rectus abdominis
ribs 5-7; costal cartilage; xiphoid process
66
actions of rectus abdominis
bilateral trunk flexion & ipsilateral flexion
67
origin of transversus abdominis
internal surfaces of ribs 7-12
68
insertion of transversus abdominis
abdominal aponeurosis
69
actions of transversus abdominis
compression of abdominal muscles to support abdominal organs
70
muscles used for inspiration
diaphragm, external intercostal, serratus posterior superior, levator costarum, quadratus lumborum, scalenes, pectoralis minor, & serratus anterior
71
muscles used for expiration
internal intercostal, serratus posterior inferior, internal oblique, external oblique, rectus abdominis, subcostals, & transverse thoracis

APA1313 - Musculoskeletal Anatomy (13 decks)

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