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Muscles > Origin/Insertion_Back and Abdomen > Flashcards

Origin/Insertion_Back and Abdomen Flashcards

1
Q

Iliocostalis Thoracis

A

O: upper borders at angles ribs 12 to 7
I: angles of ribs 1-6; TP C7

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2
Q

Iliocostalis Lumborum

A

O: common tendon of erector spinae; thoracolumbar fascia; external lip of iliac creast; posterior surface of sacrum
I: TP of lumbar vertebrae; angles on inferior border of ribs 5 or 6 to 12

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3
Q

Longissimus Thoracis

A

O: thoracolumbar fascia; transverse and accessory processes L1-L5
I: TP T1-T12; between tubercles and angles ribs 2-12

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4
Q

Spinalis Thoracis

A

O: SP T11, T12, L1, L2
I: SP T1-T4 or T8

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5
Q

Semispinales Thoracis

A

O: TP T6-T10
I: SP C6-T4

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6
Q

Multifidi

A

O: sacrum, aponuerosis of erector spinae, ilium (PSIS and crest), posterior SI ligament, mammilary process L1-L5, TP T1-T12, articular process C4-C7
I: (span 2-4 vertebrae) SP vertebrae above L5-C2

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7
Q

Rotatores Thoracis

A

O: TP T1-T12
I: lamina of vertebra above

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8
Q

Interspinales Thoracis

A

unite the spinous and transverse processes of consecutive vertebrae- better developed in cervical region than in the thoracic or lumbar region
3 pairs that are constant: between T1-T2; between T2-T3; between T11-T12

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9
Q

Quadratus Lumborum

A

O: inner lip of iliac crest; iliolumbar ligament
I: rib 12, apices of TP of L1-L4, occasionally vertebral body T12

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10
Q

Obliquus Externus Abdominis

A

O: ribs 5-12
I: anterior 1/2 outer lip iliac crest, iliac fascia, aponeurosis from 9th costal cartilage to ASIS

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11
Q

Obliquus Internus Abdominis

A

O: thoracolumbar fascia, lateral 2/3 upper inguinal ligament, anterior 2/3 of intermediate line of iliac crest
I: inferior border and cartilages rib 9-12; abdominal aponeurosis; cartilages of ribs 7-9; crest and pecten pubis

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12
Q

Transverse Abdominis

A

O:lateral 1/3 inguinal ligament, anterior 2/3 inner lip iliac crest, thoracolumbar fascia, costal cartilages ribs 7-12
I: crest and pectin pubis via aponeurosis, linea alba

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13
Q

Rectus Abdominis

A

O: lateral: pubis (tubercle on crest and pecten pubis; medial: ligaments covering front of symphysis pubis
I: costal cartilages ribs 5-7, xiphoid process, costoxiphoid ligaments

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14
Q

Rotatores Lumborum

A

Lies dep to multifidi and cannot be readily seperated

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15
Q

Interspinales Lumborum

A

O: superior SP L2-L5
I: inferior surface SP of vertebra above

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16
Q

Intertranversarii Thoracis

A

O: superior TP T11-L1
I: inferior TP T10-T12

17
Q

Intertransversarii Lumborum

A

O: accessory and costal processes L2-S1
I: mamillary process, inferior surface costal process, inferior surface TP of vertebrae above

Muscles (12 decks)

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