K2 - Quiz #2 | Abdominal Muscles (Group 1/3)

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Last updated 11:55 PM on 8/1/26
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12 Terms

1
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What are the ORIGINS for the External Oblique?

  • Ribs 5-12

2
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What are the INSERTIONS for the External Oblique?

  • Anterior iliac crest

  • Rectus sheath to linea alba

3
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What are the ACTIONS for the External Oblique?

  • Lateral flexion (ipsilateral)

  • Rotation (contralateral)

  • Flexion

  • Compress ab contents

4
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What are the ORIGINS for the Internal Oblique?

  • Lateral inguinal ligament

  • Iliac crest

  • Thoracolumbar fascia

5
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What are the INSERTIONS for the Internal Oblique?

  • Ribs 10-12

  • Rectus sheath to linea alba

6
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What are the ACTIONS for the Internal Oblique?

  • Lateral flexion (ipsilateral)

  • Rotation (ipsilateral)

  • Flexion

  • Compress ab contents

7
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What are the ORIGINS for the Rectus Abdominis?

  • Pubic crest

    • Pubic symphysis

8
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What are the INSERTIONS for the Rectus Abdominis?

  • Cartilage of ribs 5-7

  • Xiphoid process

9
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What are the ACTIONS for the Rectus Abdominis?

  • Flexion

  • Tilt pelvis posteriorly

10
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What are the ORIGINS for the Transverse Abdominis?

  • Lateral inguinal ligament

  • Iliac crest

  • Thoracolumbar fascia

  • Ribs 7-12

11
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What are the INSERTIONS for the Transverse Abdominis?

  • Rectus sheath to linea alba

12
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What are the ACTIONS for the Transverse Abdominis?

  • Compress ab contents