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Back Muscles Flashcards

1
Q

Trapezius Origin

A

Medial 1/3 nuchal line and spinous process of C7-T12

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2
Q

Trapezius Insertion

A

Lateral 1/3 of clavicle, acromion, scapular spine

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3
Q

Trapezius Arterial supply

A

Transverse cervical A.

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4
Q

Trapezius Innervation

A

Spinal accessory nerve & C3/C4 nerves

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5
Q

Trapezius Function

A

Elevates, depresses & retracts scapula. Fixes scapula to thoracic wall. Unilaterally flexes neck ipsilaterally.

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6
Q

Latissimus Dorsi Origin

A

Spinous process of T7-T12, inferior angle of scapula.

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7
Q

Latissimus Dorsi insertion

A

Floor of intertubercular groove of humerus

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8
Q

Latissimus Dorsi Innveration

A

C6-C8 spinal nerves (thoracodorsal nerve)

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9
Q

Latissimus Dorsi Arterial supply

A

Thoracodorsal A.

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10
Q

Latissimus Dorsi Function

A

Extends, abducts and medially rotates shoulder. Brings body to arms when extended superiorly

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11
Q

Levator Scapulae Origin

A

C1-C4 transverse processes.

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12
Q

Levator scapulae attachment

A

Superior angle of scapula

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13
Q

Levator Scapulae Innervation

A

C3-C5 spinal nerves (C5 dorsal scapular nerve)

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14
Q

Levator Scapulae arterial supply

A

Dorsal Scapular A.

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15
Q

Levator Scapulae Function

A

Elevates scapula, laterally flexes neck ipsilaterally.

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16
Q

Rhomboid Major Origin

A

Spinous process of T2-T5.

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17
Q

Rhomboid Major insertion

A

Medial border of scapula below scapula spine

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18
Q

Rhomboid major innervation

A

Dorsal scapular nerve (C5)

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19
Q

Rhomboid major arterial supply

A

Dorsal Scapular A.

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20
Q

Rhomboid major Function

A

Retracts scapula & steadies scapula to thoracic wall.

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21
Q

Rhomboid minor Origin

A

Nuchal ligament & C7-T1 spinous processes

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22
Q

Rhomboid minor Insertion

A

Medial border of scapulae at scapula spine

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23
Q

Rhomboid Minor Innervation

A

Dorsal scapular nerve (C5)

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24
Q

Rhomboid minor Arterial supply

A

Dorsal scapular A.

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25
Rhomboid Minor Functions
Elevates & steadies the scapula & ipsilaterally inclines neck.
26
Serratus Posterior superior Origin
Spinous processes of C7-T3
27
Serratus Posterior superior Insertion
Ribs 2-4
28
Serratus posterior superior innervation
Anterior rami of T2-T5
29
Serratus posterior superior Arterial supply
Inter coastal A.
30
Serratus posterior superior function
Proprioception
31
Serratus posterior inferior Origin
spinous processes of T11-L2
32
Serratus posterior inferior insertion
Ribs 8-12
33
Serratus posterior inferior innervation
Anterior rami of T9-T12
34
Serratus posterior inferior arterial supply
Intercostal, subcoastal and lumbar Arteries
35
Serratus posterior inferior Function
Proprioception
36
Spinotransversales muscle names
Splenius cervicis & Splenius capitis
37
Splenius cervicis origin
Spinous processes of T3-T6
38
Splenius cervicis insertion
Transverse processes of C1-C3
39
Splenius Capitis Origin
Spinous processes of C7-T4
40
Splenius capitis insertion
Mastoid process and superior nuchal line
41
Spinotransversales innervation
Posterior rami of spinal nerves
42
Spinotransversales Arterial supply
Occipital & transverse cervical artery
43
Spinotransversales functions
Bilaterally extends neck, ipsilaterally flexes and rotates neck
44
Erector spinae muscle names
Illiocostalis, Longissimus, Spinallis
45
Illicostalis origin
Broad tendon of iliac crest & lumbar spinous processes
46
Illiocostalis Insertion
Lower rib angles and cervical transverse processes
47
Illiocostalis innervation
Posterior rami of spinal nerves.
48
Illiocostalis Artery supply
Deep cervical, intercostal, subcostal and lumbar A.
49
Illiocostals Function
Bilaterally extends spine, ipsilaterally laterally flexes spine.
50
Longissimus origin
Broad tendon of illiac crest and lumbar spinous processes
51
Longissimus Insertion
Thoracic and cervical transverse processes (thoarcis and cervicis) and mastoid processes (capitis)
52
Longissimus innervation
Posterior rami of spinal nerves
53
Longissimus Arterial supply
Deep cervical, intercostal, subcostal and lumbar A.
54
Longissimus Function
Bilaterally extends spine & head, ipsilaterally laterally flexes spine & head
55
Spinallis Origin
Broad tendon of illiac crest.
56
Spinallis Insertion
Spinous processes in thoracic and cervical vertebrae
57
Spinallis innervation
Posterior rami of spinal nerves
58
Spinallis Arterial supply
Deep cervical, intercoastal, subcostal and lumbar A.
59
Spinallis Function
Bilaterally extends spine, ipsilaterally laterally flexes spine.
60
Transversospinales muscle names
Semispinalis, multifidus, Rotatores longus & Brevis
61
Semispinalis Origin
Transverse processes of C4-T12.
62
Semispinalis insertion
occipital bone, spinous processes of cervical and thoracic vertebrae
63
Semispinalis Arterial supply
Deep cervical, intercoastal, subcostal & lumbar A.
64
Semispinalis Function
Bilaterally extends head & spine, ipsilaterally flexes spine and contralaterally rotates spine
65
Multifidus Origin
Sacrum, ilium, transverse processes of T1-T3 & L2-L5. Articular processes of C4-C7
66
Multifidus insertion
Spinous processes of superior vertebrae.
67
Multifidus Innervation
Posterior rami of spinal nerves
68
Multifidus Arterial supply
Deep cervical, intercostal, subcostal and lumber A.
69
Multifidus Function
Bilaterally extends spine, Ipsilaterally flexes spine.
70
Rotatores origin
Transverse process of T1-T12
71
Rotatores insertion
Spinous process of superior vertebrae
72
Rotatores innervation
Posterior rami of spinal nerves
73
Rotatores arterial supply
Deep cervical, intercostal, subcostal, lumbar A.
74
Rotatores function
Bilaterally extends spine, contralateral rotation of spine. Proprioception.
75
Interspinales origin & insertion
Moves through C1-L5. | Origin = spinous processes of superior vertebrae. Insertion = spinous processes of inferior vertebrae.
76
Interspinales innervation
Posterior rami of spinal nerves
77
Interspinales Arterial supply
Deep cervical, intercostal, subcostal & lumbar A.
78
Interspinales Functions
Extension of spine
79
Intertransversarii Orign & insertion
Moves through C2-L5 Origin: transverse process of superior vertebrae. Insertion: transverse process of inferior vertebrae.
80
Intertransversarii Innervation
Anterior rami of cervical spinal nerves (cervicis) | Posterior rami of thoracic and lumbar spinal nerves (thoracis & lumborum).
81
Intertransversarii arterial supply
Deep cervical, intercostal, subcostal & lumbar A.
82
Intertransversarii Function
Bilaterally stabilize spine, unilaterally laterally flexes the spine.
83
Levatores Costarum origin
Transverse processes of C7-T11.
84
Levatores costarum insertion
Subjacent ribs (breves) or rib 2 vertebrae below origin (longus)
85
Levatores costarum Arterial supply
Deep cervical, intercostal, subcostal & lumbar A.
86
Levatores costarum Function
Bilaterally elevates ribs. Ipsilaterally laterally flexes thoracic spine and contralaterally rotates it.
87
Suboccipital Triangle (muscles)
Rectus capitis posterior major: Medial border Obliquus Capitis superior: Lateral border Obliquus Capitis inferior: Inferior border *Contains the Vertebral & Suboccipital nerves.*
88
Triangle of Auscultation
Trapezius: Medial Border Medial border of scapulae: Lateral Border Illiac Crest: Inferior Border
89
Lumbar Triangle
Latissimus Dorsi: Medial Border External Oblique: Lateral Border Illiac Crest: Inferior Border

Anatomy (17 decks)

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