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Gross Anatomy > Superficial Back Muscles > Flashcards

Superficial Back Muscles Flashcards

Learn origin, insertion, innervation, blood supply, action (53 cards)

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1
Q

Latissimus Dorsi(Action)

A

Internal rotation, adduction, and extension of the humerus.

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2
Q

Latissimus Dorsi(innervation)

A

Thoracodorsal nerve

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3
Q

Rhomboid Minor (action)

A

Retraction of the scapular, slight downward rotation and elevation.

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4
Q

Levator Scapulae (Innervation)

A

Upper cervical nerve, dorsal scapular nerve

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5
Q

Latissimus Dorsi (Blood Supply)

A

Thoracodorsal artery

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6
Q

Latissimus Dorsi (Insertion)

A

Intertubercular groove of the humerus

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7
Q

Latissimus Dorsi (Origin)

A

Spinous processes of T7-L5, illiac crest, lower 4 ribs, thoracolumbar fascia.

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8
Q

Trapezius (Insertion)

A

(EOP-C4) lateral aspect of clavicle
(C5-T4)- acromion
(T5-T12)- spine of spacula

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9
Q

Trapezius (Innervation)

A

CN11 accessory nerve

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10
Q

Levator Scapulae (blood supply)

A

Upper cervical vessel

Dorsal scapular artery

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11
Q

Trapezius (blood supply)

A

Transverse cervical artery

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12
Q

Rhomboid Minor (blood supply)

A

Dorsal scapular artery

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13
Q

Rhomboid Minor (innervation)

A

Dorsal Scapular nerve

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14
Q

Trapezius (origin)

A

EOP (external occipital protuberance)
Superior nuchal line
Nuchal ligament
Spinous processes and supraspinatus ligaments of C7-T12

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15
Q

Levator Scapulae (action)

A

Elevates the scapula

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16
Q

Rhomboid Minor (insertion)

A

Medial edge of scapula at level of spine of scapula

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17
Q

Rhomboid Minor (Origin)

A

SP of C7-T1

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18
Q

Trapezius (actions)

A

Upper- Shoulder elevation
Middle-aged Shoulder elevation, upward scapular rotation, scapular retraction
Lower- Shoulder and scapular depression, upward scapular rotation
ALL three contract to perform scapular retraction

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19
Q

Serratus Anterior (action)

A

Protraction of scapula

Upward rotation of scapula

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20
Q

Serratus Anterior (origin)

A

Anterior ribs #1-9

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21
Q

Serratus Anterior (Insertion)

A

Medial edge of the ventral surface of the scapula, inferior angle of the scapula

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22
Q

Serratus Anterior (Blood supply)

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A

Lateral thoracic artery

23
Q

Serratus Anterior (Innervation)

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A

Long thoracic nerve

24
Q

Levator Scapulae (insertion)

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A

Superior angle of scapula, near medial border

25
Levator Scapulae (origin)
Transverse Processes of C1-C4
26
Rhomboid Major (Insertion)
Medial edge of scapula- inferior to the rhomboid Minor
27
Rhomboid Major (origin)
Spinous processes of T2-T5
28
Rhomboid Major (Innervation)
Dorsal scapular nerve
29
Rhomboid Major (blood supply)
Dorsal scapular artery
30
Rhomboid Major (action)
Retraction of scapula | Slight downward rotation and elevation
31
Deep Back Muscles 3 groups
Splenius Erector Spinae Transverso-Spinalis
32
Originate on spinous processes and run laterally up?
Splenius
33
Run parallel to midline
Erector Spinae
34
Runs from transverse process to spinous process?
Transverso-spinalis
35
2 "bandage" muscles; deep in Trapezius, but most superficial of deep muscles and located in the neck and upper thorax
Splenius
36
The 2 muscles of the splenius are?
Capitis | Cervicis
37
Broad, flat muscle; produces rotation in direction of contracted muscle?
Capitol
38
Origin of the splenius Capitis
Spinous Process of C7-T3
39
Insertion of the splenius Capitis
Mastoid Process | Superior Nuchal Line (lateral part)
40
Nerve of the splenius Capitis
Dorsal Primary Rami
41
Action of splenius Capitis
Bilaterally-Extension of the head and neck Unilaterally-Rotation of the same side
42
Narrow muscle that wraps around splenius Capitis portion
Cervicis
43
Origin of thesplenius Cervicis
Spinous process of T5-T7
44
Insertion of the splenius Cervicis
Transverse Process of C1-C4
45
Nerve for splenius Cervicis
Dorsal Primary Rami
46
3 columns of muscles, long group of muscles seen in bundles on each side of the spine?
Erector Spinae
47
Origin of the Erector Spinae?
Spinous process of T11-S3 Iliac Crest Surface of Sacrum
48
Action of Erector Spinae
Ext. of vertebral column (bilaterally) Lateral flexion to the same side of contraction (unilaterally)
49
Three columns of the Erector Spinae?
Iliicoatalis Longissimus Spinalis I LOVE SPAGHETTI
50
Most lateral of the erector Spinae and contains 3 parts?
Iliocostalis
51
3 parts of the iliocostalis
Lumborum Thoracic Cervicis
52
Origin of the Ilicostalis lumborum (erector Spinae)
Iliac Crest
53
Insertion of the iliostalis Lumborum (erector Spinae)
Lower 6 ribs

Gross Anatomy (34 decks)

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