Anatomy > Lab (O,I,I, and A of Muscles) > Flashcards

Lab (O,I,I, and A of Muscles) Flashcards

(91 cards)

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0
Q

Insertion of trapezius

A

Acromion and spine of scapula and lateral third of clavicle

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1
Q

Origin of trapezius

A

Nuchal line, occipital protuberances of C7-C12

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2
Q

Nerves of trapezius

A

Accessory nerve and C3 and C4

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3
Q

Action of trapezius

A

Elevates, depresses, and retracts scapula

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4
Q

Action of latissimus dorsi

A

Extends, adducts, and medially rotate humerus

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5
Q

Nerves of latissimus dorsi

A

C6, C7, C8

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6
Q

Insertion of latissimus dorsi

A

Bicipital groove of humerus

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7
Q

Origin of latissimus dorsi

A

Last 6 thoracic vertebrae, iliac crest, thoracolumbar fascia, inferior 3 or 4 ribs

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8
Q

Nerves of levator scapula

A

C3 and C4 and C5

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9
Q

Actions of levator scapulae

A

Elevates scapula and inferiorilly tilts glenoid cavity to rotate scapula

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10
Q

Insertion of levator scapulae

A

Medial border superior to spine of scapula

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11
Q

Origin of levator scapulae

A

C1-C4

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12
Q

Insertion of Rhomboid major

A

Medial border of scapula from spine to inferior angle

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13
Q

Origin of rhomboid major

A

T2-T5

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14
Q

Insertion of rhomboid minor

A

Smooth triangular area at medial border of scapula

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15
Q

Origin of rhomboid minor

A

C7 and T1 and nuchal ligament

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16
Q

Nerves of rhomboid minor and major

A

C4 and C5

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18
Q

Action of rhomboids

A

Retract scapula to depress glenoid cavity

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19
Q

Origin of Splenius Cervicis

A

Nuchal ligament and C7-T6

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20
Q

Insertion of splenius cervicis

A

C1-C3/4

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21
Q

Action of splenius cervicis

A

laterally flex neck and rotate head to side of active muscles

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22
Q

innervation of splenius cervicis

A

posterior rami of spinal nerves

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23
Q

origin of splenius capitis

A

Nuchal ligament and C7-T6

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24
Q

insertion of splenius capitis

A

Mastoid process of the temporal bone and lateral 3rd of superior nuchal line of the occipital bone

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25
innervation of splenius capitis
Posterior rami of spinal nerves
26
action of splenius capitis
laterally flex neck and rotate head to side of active muscles
27
origin of serratus posterior superior
nuchal ligament and C7-T3
28
insertion of serratus posterior superior
superior borders of 2nd-4th ribs
29
innervation of serratus posterior superior
intercostal nerves (2nd-5th)
30
action of serratus posterior superior
proprioception
31
origin of serratus posterior inferior
T11-L2
32
insertion of serratus posterior inferior
inferior borders of 8th-12th ribs
33
innervation of serratus posterior inferior
anterior rami to T9-T12 thoracic spinal nerves
34
action of serratus posterior inferior
propioception
35
origin of iliocostalis
posterior part of iliac crest, posterior surface of sacrum, sacroiliac ligament. sacral and inferior lumbar spinous processes, and supraspinous ligament
36
insertion of iliocostalis
fibers run superiorly to angles of lower ribs and cervical transverse processes
37
innervation of iliocostalis
posterior rami of spinal nerves
38
action of iliocostalis
extend vertebral column and head, ( if back flexed) control movement via ECC contraction
39
Origin of longissimus
posterior part of iliac crest, posterior surface of sacrum, sacroiliac ligament. sacral and inferior lumbar spinous processes, and supraspinous ligament
40
insertion of longissimus
superiorly to ribs btwn tubercles, transverse processes in T/C regions, mastoid process of temporal bone
41
innervation of longissimus
posterior rami of spinal nerves
42
action of longissimus
extend vertebral column and head-Capitis (altanto-occipital joint). (if back flexed) control movement via ECC contraction
43
roots of longissimus
thoracis, cervicis, capitis
44
roots of ilicostalis
lumborum, thoracis, cervicis
45
origin of spinalis
posterior part of iliac crest, posterior surface of sacrum, sacroiliac ligament. sacral and inferior lumbar spinous processes, and supraspinous ligament
46
insertion of spinalis
superiorly to spinous processes in the upper thoracic region and to cranium
47
innervation of spinalis
posterior rami of spinal nerves
48
action of spinalis
extend vetebral column and head, (if back flexed) control movement via ECC contraction
49
roots of spinalis
cervicis and capitis
50
origin of semispinalis
C4-T12
51
insertion of semispinalis
supermedially to the occipital bone and spinous processes in thoracic and cervical regions
52
innervation of semispinalis
porterior rami of spinal nerves
53
action of semispinalis
extends head, thoracic and cervical regions and rotates them contalaterally
54
roots of semispinalis
thoracis, cervicis, capitis
55
origin of multifidus
posterior sacrum, PSIS, aponeurosis of erector spinae, sacroiliac ligament, mammilary processes of lumbar vertebrae, T1-T3 and C4-C7
56
insertion of multifidus
(thickest in lumbar) fibers pass obliquely superomedial to the entire length of spinous processes, located 2-4 segments superior to proximal attachment
57
innervation of multifidus
posterior rami of spinal nerves
58
action of multifidus
stabilizes vertebrae during local movements of vertebral column
59
origin of rotatores
thoracic region
60
insertion of rotatores
junction of lamina and transverse process of vertebrae immed.(brevis) or 2 segments (longus) superior to vertebrae of attachment
61
innervation of rotatores
posterior rami of spinal nerves
62
action of rotatores
stabilizes vertebrae
63
roots of rotatores
brevis, longus
64
origin of intertransversarii
transverse processes of cervical and lumbar vertebrae
65
insertion of intertransversarii
transverse processes of adjacent vertebare
66
innervation of intertransversarii
posterior rami of spinal nerves
67
action of intertransversarii
bilaterally; stabilize the vetebral column
68
origin of levatores costarum
transverse process of C7 and T1-T11
69
insertion of levatores costarum
pass inferolaterally and insert on rib btwn tubercle and angle
70
innervation of levatores costarum
posterior rami of C8-T11
71
action of levatores costarum
elevate ribs
72
Origin of deltoid (distal)
Lateral 1/3 of clavicle, acromion, and spine of scapula
73
Insertion of deltoid (proximal)
Deltoid tuberosity of humerus
74
Innervation of deltoid
Axillary nerve (c5, c6)
75
Action of deltoid
Ascending: flex and medially rotate Middle: abducts in posterior Laterally rotates and extends arm
76
Origin of supraspinatus
Supraspinous process of scapula
77
Insertion of supraspinatus
Superior facet of greater tubercle
78
Innervation of supraspinatus
Suprascapular nerve (c4, c5, c6)
79
Action of supraspinatus
Abduction of arm
80
Origin of Infraspinatus
Infraspinous process of scapula
81
Insertion of infraspinatous
Middle facet of greater tubercle
82
Innervations of infraapinatus
Suprascapular nerve (c5, c6)
83
Action of infraspinatus
Laterally rotate arm
84
Origin of teres major
Posterior surface of inferior angle of scapula
85
Insertion of teres major
Medial lip of inter tubercle sulcus of humerus
86
Innervations of teres major
Subscapular nerve (c5,c6)
87
Action of teres major
Laterally rotate arm
88
Origin of serratus anterior
External surface of lateral parts of 1st-8th ribs
89
Insertion of serratus anterior
Anterior surface of medial border of scapula
90
Innervation of serratus anterior
Long thoracic nerve (c5, c6, c7)
91
Action of serratus anterior
Protracts scapula and holds it against thoracic wall; rotates scap

Anatomy (1 decks)

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