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Gross Anatomy > Gross Anatomy Exam 1: Muscles > Flashcards

Gross Anatomy Exam 1: Muscles Flashcards

(126 cards)

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1
Q

Insertion of the descending trapezius

A

lateral 1/3 clavicle

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2
Q

Innervation of the trapezius muscle

A
  • Cervical plexus C3-C4

- Spinal accessory nerve (C.N. XI)

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3
Q

Action of the descending trapezius

A

Elevate scapula

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4
Q

Blood supply of the trapezius muscle

A

Transverse cervical artery

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5
Q

Origin of the transverse trapezius

A

Spinous process of T1-T4

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6
Q

Insertion of transverse trapezius

A

Acromion of scapula

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7
Q

Action of transverse trapezius

A

Retract scapula

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8
Q

Origin of Ascending trapezius

A

Spinous process of T5-T12

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9
Q

Insertion of ascending trapezius

A

Spine of scapula

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10
Q

Origin of levator scapulae

A

Transverse process of C1-C4

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11
Q

Insertion of levator scapulae

A

Superior angle of scapula

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12
Q

Innervation of Levator Scapulae

A

Dorsal Scapular Nerve (C4-C5)

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13
Q

Origin of Rhomboid Minor

A

Spinous process of C7 - T1

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14
Q

Insertion of Rhomboid Minor

A

Root of Spine of Scapula

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15
Q

Innervation of Rhomboid Minor

A

Dorsal Scapular Nerve (C5)

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16
Q

Action of Rhomboid Minor

A

-Retract scapula, anchor scapula to thoracic wall, depress glenoid cavity

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17
Q

Origin of Rhomboid Major

A

Spinous process of T2-T5

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18
Q

Insertion of Rhomboid Major

A

Medial border of scapula below the spine of scapula

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19
Q

Innervation of Rhomboid Major

A

Dorsal Scapular Nerve (C4-C5)

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20
Q

Action of Rhomboid Major

A

Retract scapula, steady scapula to thoracic wall, depress glenoid cavity

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21
Q

Extrinsic muscles of the back

A

Trapezius, Levator Scapulae, Latissimus Dorsi, Rhomboid Minor and Major

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22
Q

Superficial Intrinsic muscles of the back

A

Serratus Posterior Superior + Serratus Posterior Inferior

Splenius Capitis + Splenius Cervicis

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23
Q

Erector Spinae Muscles

A

“I Love Spaghetti”

ILiocostalis, Longissimus, Spinalis

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24
Q

Breakdown of erector spinae muscles

A

Iliocostalis - Cervicis, Thoracis, Lumborum
Longissimus - Capitis, Cervicis, Thoracis
Spinalis - Cervicis, Thoracis

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25
Origin of Latissimus Dorsi
- Thoracolumbar fascia - Spinous process of T7-T12 - Ribs 9 - 12 - Inferior angle of Scapula - Iliac crest
26
Insertion of Latissimus Dorsi
-Floor of intertubercular groove of humerus
27
Innervation of Latissimus Dorsi
Thoracodorsal nerve (c6,7,8) "C6, 7, 8 make the lats great"
28
Action of Latissimus Dorsi
Extension, Medial Rotation, Adduction "getting arrested"
29
Origin of Serratus Posterior Superior
- Spinous process of C7-T3 | - nuchal ligament
30
Insertion of serratus posterior superior
Superior border of ribs 2-4
31
Innervation of serratus posterior superior
Spinal nerve T2-T5 Anterior rami
32
Action of serratus posterior superior
Elevate ribs
33
Origin of serratus posterior inferior
Spinous process of T11-L2
34
Insertion of serratus posterior inferior
Inferior border of ribs 8-12
35
Innervation of serratus posterior inferior
Spinal n. T9-T12 (anterior rami)
36
Action of serratus posterior inferior
depress ribs
37
Origin of the descending trapezius
EOP, nuchal ligament, superior nuchal line
38
Origin of Splenius capitis
- Spinous process of C3-C7 - nuchal ligament *gedo
39
Insertion of Splenius Capitis
- Mastoid process of temporal bone | - Lateral superior nuchal line
40
Innervation of Splenius Capitis
Spinal Nerves C1-C6 (dorsal Rami) *biggest bday - 16
41
Action of Splenius Capitis
Bilateral - extends head and cervical spine | Unilateral - ipsilateral lateral flexion and ipsilateral rotation of head
42
Origin of Splenius cervicis
Spinous process of T3-T6
43
Insertion of Splenius cervicis
Transverse process of C1-C2 *G+T serve
44
Innervation of Splenius Cervicis
Spinal Nerves C1-C6 (Dorsal Rami)
45
Action of Splenius Cervicis
Bilateral - extends head and cervical spine | Unilateral = ipsilateral flexion; ipsilateral rotation
46
Origin of Iliocostalis Cervicis
Ribs 3- 7 *Cost - eat ribs
47
Insertion of Iliocostalis Cervicis
Transverse process of C4-C6
48
Innervation of Illiocostalis Cervicis
Spinal nerves C8 - L1 (dorsal rami) *she ate L1
49
Action of Illiocostalis cervicis
Bilateral: Extends spine Unilateral: ipsilateral lateral flexion of spine
50
Origin of Iliocostalis Thoracis
Ribs 7-12
51
Insertion of Iliocostalis Thoracis
Ribs 1-6
52
Action of levator scapulae
retract and elevate scapula (Inclines neck ) *supramedially
53
Innervation of Iliocostalis thoracis
Spinal nerves C8-L1 (dorsal rami)
54
Action of iliocostalis thoracis
Bilateral: extends spine Unilateral: ipsilateral lateral flexion of spine
55
Origin of Iliocostalis lumborum
Sacrum, iliac crest, thoracolumbar fascia **SIT - bored when you are sitting down
56
Insertion of iliocostalis lumborum
- Deep thoracolumbar fascia - Ribs 6-12 - Transverse processes of upper lumbar vertebrae
57
Innervation of iliocostalis lumborum
Spinal nerves C8-L1 (Dorsal rami)
58
Action of iliocostalis lumborum
Bilateral: extends spine Unilateral: Ipsilateral lateral flexion of spine
59
Origin of Longissimus Capitis
Transverse processes of T1-T3 Transverse and articular processes of C4-C7 *Capitol building
60
Insertion of Longissimus capitis
-Mastoid process of temporal bone
61
Innervation of longissimus capitis
Spinal nerves C1-L5 (dorsal rami)
62
Action of Longissimus capitis
Bilateral: extends head Unilateral: ipsilateral lateral flexion; ipsilateral rotation of head
63
Origin of Longissimus Cervicis
Transverse processes of T1-T6
64
Insertion of Longissimus Cervicis
Transverse process of C2-C5
65
Innervation of Longissimus cervicis
Spinal Nerves C1-L5 (posterior rami)
66
Action of Longissimus cervicis
Bilateral: extends spine Unilateral: ipsilateral lateral flexion
67
Origin of Longissimus thoracis
Sacrum, iliac crest, spinous process of lumbar vertebrae, transverse process of thoracic vertebrae
68
Insertion of Longissimus Thoracis
Ribs 2-12 Costal processes of thoracic vertebrae Transverse process of lumbar vertebrae
69
Innervation of Longissimus Thoracis
Spinal Nerves C1-L5 (dorsal rami)
70
Action of Longissimus Thoracis
Bilateral: extends spine Unilateral: ipsilateral lateral flexion
71
Origin of Spinalis Cervicis
Spinous process of C5-T2 *my dad is 52,
72
Insertion of Spinal Cervicis
Spinous process of C2-C5
73
Innervation of Spinalis Cervicis
Spinal nerves of posterior rami
74
Action of spinalis cervicis
Bilateral: extends cervical and thoracic spine Unilateral: ipsilateral lateral flexion of cervical and thoracic spine
75
Origin of Spinalis Thoracis
Spinous process of T10 - L3
76
Insertion of Spinalis Thoracis
Spinous process of T2- T8
77
Innervation of Spinalis thoracis
Spinal nerves (posterior rami)
78
Action of spinalis thoracis
Bilateral: extends cervical and thoracic spine Unilateral: ipsilateral lateral flexion of cervical and thoracic spine
79
Origin of semispinalis capitis
Transverse and articular process of C4-T7
80
Insertion of semispinalis capitis
Occipital bone between superior and inferior nuchal line
81
Innervation semispinalis capitis
Posterior rami
82
Action of semispinalis capitis
Bilateral: extends thoracic and cervical spine and head Unilateral: ipsilateral lateral flexion of cervical and thoracic spine; contralateral rotation
83
Origin of semispinalis cervicis
Transverse processes of T1-T6
84
Insertion of semispinalis cervicis
Spinous process of C2-C5
85
Innervation of semispinalis cervicis
Spinal nerves of posterior rami
86
Action of semispinalis cervicis
Bilateral: extension of cervical and thoracic spine and head Unilatera: ipsilateral lateral flexion, contralateral rotation, bends head
87
Semispinalis thoracis
Origin -transverse process of T6-T12 | Insertion - spinous process of C6-T4
88
Origin and Insertion of Rotatores Brevis
Between spinous and transverse process T1-T12 of adjacent vertebrae
89
Origin and insertion of rotatores longus
Between spinous and transverse process of adjacent vertebrae T1-T12; skipping one vertebrae
90
Innervation of rotatores brevis and longus
Spinal nerves of posterior rami
91
Action of rotatores brevis and longus
Bilateral: extension of thoracic spine Unilateral: Contralateral rotation Proprioception
92
Origin and insertion of multifidus
Between spinous and transverse processes of adjacent vertebrae of C2-sacrum; skipping 2-4 vertebrae
93
Innervation of multifidus
Spinal nerves of posterior rami
94
Action of multifidus
Bilateral: extension of spine Unilateral: ipsilateral lateral flexion; contralateral rotation of spine
95
Origin of Obliqus capitis inferior
Spinous process of C2
96
Insertion of obliqus capitis inferior
Transverse process of C1
97
Innervation of obliqus capitis inferior
C1 - suboccipital nerve (posterior rami)
98
Action of obliqus capitis inferior
Bilateral: extends head Unilateral: ipsilateral rotation
99
Origin of obliqus capitis superior
Transverse process of C1
100
Insertion of obliqus capitis superior
Middle third of inferior nuchal line *Above rectus capitis major
101
Innervation of obliqus capitis superior
C1 - Suboccipital nerve
102
Action of obliqus capitis superior
Bilateral: extends head Unilateral: ipsilateral lateral flexion; contralateral rotation
103
Origin of rectus capitis posterior major
Spinous process of C2
104
Insertion of rectus capitis posterior major
Middle third of inferior nuchal line
105
Innervation of rectus capitis posterior major
C1 - suboccipital nerve
106
Action of rectus capitis posterior major
Bilateral: extends head Unilateral: ipsilateral rotation
107
Origin of rectus capitis posterior minor
Posterior tubercle of C1
108
Insertion of rectus capitis posterior minor
Inner third of inferior nuchal line
109
Innervation of Rectus capitis posterior minor
C1 - suboccipital nerve
110
Action of rectus capitis posterior minor
Bilateral: extends head Unilateral: ipsilateral rotation
111
Origin of sternocleidomastoid
Sternal head - manubrium of sternum | Clavicular head - middle 1/3 of clavicle
112
Insertion of SCM
- mastoid process of temporal bone | - superior nuchal line of occipital bone
113
Innervation of sternocleidomastiod
- spinal accessory nerve CN XI | - Cervical plexus C2-C3
114
Action of SCM
Bilateral: extends head Unilateral: ipsilateral lateral flexion; contralateral rotation
115
Origin of anterior scalene
Anterior tubercles of transverse processes of C3-C6
116
Insertion of anterior Scalene
Scalene tubercules of 1st rib
117
Innervation of anterior scalene
branches of brachial and cervical plexuses C3-C8
118
Action of anterior scalene
elevates upper ribs (w/ribs fixed) unilateral: ipsilateral lateral flexion of cervical spine bilateral: flexes neck
119
Origin of middle scalene
C1-C2 (Transverse processes) | C3-C7 Posterior tubercles of transverse processes
120
Insertion of middle scalene
1st rib (posterior to groove of subclavian artery)
121
Innervation of middle scalene
Branches of brachial and cervical plexuses (C3-C8)
122
Action of middle scalene
- Elevate upper ribs (ribs fixed) - Unilateral: ipsilateral lateral flexion of cervical spine - Bilateral: flexes neck
123
Origin of posterior scalene
Posterior tubercles of transverse processes of C5-C7
124
Insertion of posterior scalene
Outer surface of 2nd rib
125
Innervation of posterior scalene
Branches of cervical and brachial plexuses C3-C8
126
Action of Posterior Scalene
Elevates upper ribs Unilateral: ipsilateral lateral flexion of cervical spine Bilateral: flexes neck

Gross Anatomy (11 decks)

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