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Flashcards in Torso Deck (11)
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1
Q

Erector Spinae

A

Origin: Spinous T9-12
Insertion: Spinous of cervical and thoracic vertebrae
Action: extend vertebral column
Innervation: posterior branch of spinal nerve

  • back muscle
2
Q

Iliocostalis

A

Origin:
Insertion:
Action:
Innervation:

  • Back muscle (erector spinae)
3
Q

Longissimis

A

Origin: TP
Insertion: TP
Action: extend vertebral column
Innervation: posterior branch of spinal nerve

  • Back muscle (erector spinae)
4
Q

Spinalis

A

Origin: Spinous
Insertion: Spinous
Action: extend vertebral column
Innervation: posterior branch of spinal nerve

  • back muscle (erector spinae)
5
Q

Latissimus dorsi

A

Origin: Spinous T6-T12, thoracolumbar fascia, iliac crest, inferior 3 or 4 ribs
Insertion: humerus
Action: pulls forelimb dorsally and caudally
Innervation: thoracodorsal nerve

  • Back muscle (erector spinae)
6
Q

Multifidus

A

Origin: sacrum, erector spinae aponeurosis, PSIS, iliac crest
Insertion: spinous process
Action: stabilize vertebrae
Innervation: posterior branch of spinal nerve

  • Back muscle (transversospinalis)
7
Q

Interspinalis

A

Origin: SP
Insertion: SP
Action: Extension, flexion and rotation of spinal column
Innervation: Posterior rami of spinal nerves

  • Back muscle
8
Q

Intertransversarii

A

Origin: TP
Insertion: TP above
Action: Lateral flexion of trunk
Innervation: anterior rami of spinal nerves

  • Back muscle
9
Q

Splenius capitis

A

Origin: Ligamentum nuchae, SP C7-T6
Insertion: Mastoid
Action: Extend, rotate, laterally flex head
Innervation: C3, C4

  • Back muscle
10
Q

Splenius Cervicis

A

Origin: SP T3-T6
Insertion: TP of C1-3
Action: ??
Innervation: C5, C6

  • Back muscle
11
Q

Transverse thoracis

A

Origin: Costal cartilage last 3-4 ribs, body of sternum, xyphoid
Insertion: Ribs/ costal cartilage 2-6
Action: depresses ribs
Innervation: intercostal nerves

  • Chest muscle