Lab 6: Thorax, Abdomen & Pelvis
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Created by:
grossanatomy369 on September 20, 2011
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75 terms
Terms | Definitions |
|---|---|
 External Intercostals Origin | Inferior Margin of 1st 11 Ribs |
| External Intercostals Insertion | Superior Margin of Rib Below |
| External Intercostals Action | Elevates Ribs During Inspiration |
| External Intercostals Nerve | Intercostal Nerves |
| External Intercostals Blood | 1st Two: Supreme Intercostal & Superior Thoracic Arteries 3-12: Anterior Intercostal, Posterior Intercostal & Subcostal Arteries |
| Internal Intercostals Origin | Inferior Margin of 1st 11 Ribs from Cartilages to Angles |
| Internal Intercostals Insertion | Superior Margin of the Ribs Below |
| Internal Intercostals Action | Elevates Ribs During Inspiration |
| Internal Intercostals Nerve | Intercostal Nerves |
| Internal Intercostals Blood | 1st Two: Supreme Intercostal & Superior Thoracic Arteries 3-12: Anterior Intercostal, Posterior Intercostal & Subcostal Arteries |
| Diaphragm Origin | Xiphoid Process of Sternum, Lower 6 Costal Cartilages, First 3 Lumbar Vertebrae and Medial & Lateral Arcuate Ligaments |
| Diaphragm Insertion | Central Tendon of the Diaphragm |
| Diaphragm Action | Depresses Central Tendon to Increase Vertical Dimension of Thorax During Inspiration |
| Diaphragm Nerve | Phrenic Nerve |
| Diaphragm Blood | Superior & Inferior Phrenic Arteries |
| Rectus Abdominus Origin | Pubic Symphysis & Crest |
| Rectus Abdominus Insertion | Costal Cartilages of Ribs 5,6, & 7 and Xiphoid Process |
| Rectus Abdominus Action | Flexes Trunk & Compresses Abdomen |
| Rectus Abdominus Nerve | Intercostal Nerves T7 - T12 |
| Rectus Abdominus Blood | Superior & Inferior Epigastric Arteries |
| External Abdominal Oblique Origin | Lower 8 Ribs |
| External Abdominal Oblique Insertion | Abdominal Aponeurosis to Linea Alba, Pubis & Anterior Iliac Crest |
| External Abdominal Oblique Action | Bilaterally: Flexes Trunk & Compresses Abdomen Unilaterally: Lateral Trunk Flexion & Rotates Trunk to Opposite Side |
| External Abdominal Oblique Nerve | Intercostal Nerves T7-T12 Iliohypogastric & Ilioinguinal Nerves |
| External Abdominal Oblique Blood | Lower Posterior Intercostal, Subcostal & Deep Circumflex Iliac Arteries |
| Internal Abdominal Oblique Origin | Inguinal Ligament, Iliac Crest & Thoracolumbar Aponeurosis |
| Internal Abdominal Oblique Insertion | Costal Cartilages of Lower 4 Ribs & Abdominal Aponeurosis to Linea Alba |
| Internal Abdominal Oblique Action | Bilaterally: Flexes Trunk & Compresses Abdomen Unilaterally: Lateral Trunk Flexion & Rotates Trunk to the Same Side |
| Internal Abdominal Oblique Nerve | Intercostal Nerves T8-T12 Iliohypogastric & Ilioinguinal Nerves |
| Internal Abdominal Oblique Blood | Lower Posterior Intercostal, Subcostal & Deep Circumflex Iliac Arteries |
| Traversus Abdominus Origin | Inguinal Ligament, Iliac Crest, Thoracolumar Aponeurosis & Costal Cartilages of Ribs 7 - 12 |
| Traversus Abdominus Insertion | Abdominal Aponeurosis of Linea Alba & Pubis |
| Traversus Abdominus Action | Compresses Abdomen |
| Traversus Abdominus Nerve | Intercostal Nerves T7-T12 Iliohypogastric & Ilioinguinal Nerves |
| Traversus Abdominus Blood | Lower Posterior Intercostal, Subcostal, & Deep Circumflex Iliac Arteries |
| Quadratus Lumborum Origin | Iliac Crest |
| Quadratus Lumborum Insertion | 12th Rib & Transverse Processes L1-4 |
| Quadratus Lumborum Action | Normal: Lateral Flexion of Trunk Reverse: Elevates Hip |
| Quadratus Lumborum Nerve | Ventral Rami of T12-L4 |
| Quadratus Lumborum Blood | Subcostal & Lumbar Arteries |
| Iliacus Origin | Iliac Fossa |
| Iliacus Insertion | Lesser Trochanter of Femur |
| Iliacus Action | Normal: Flexion of Femur at Hip Joint Reverse: Flexion of Lumbar Spine |
| Iliacus Nerve | Femoral Nerve |
| Iliacus Blood | Subcostal & Lumbar Arteries |
| Psoas Major Origin | T12-L5 Vertebral Bodies & Disks L1-5 Transverse Processes |
| Psoas Major Insertion | Lesser Trochanter of Femur |
| Psoas Major Action | Normal: Flexion of Femur at Hip Joint Reverse: Flexion of Lumbar Spine |
| Psoas Major Nerve | L2, L3 |
| Psoas Major Blood | Subcostal & Lumbar Arteries |
| Psoas Minor Origin | T12 |
| Psoas Minor Insertion | Pelvic Rim |
| Psoas Minor Action | Weak Trunk Flexor |
| Psoas Minor Nerve | L1 |
| Psoas Minor Blood | Subcostal & Lumbar Arteries |
| Subcostals Origin | Posteriorly on Internal Aspect of Lower 6 Ribs |
| Subcostals Insertion | Internal Aspect of 2nd or 3rd Rib Below |
| Subcostals Action | Depresses Lower Ribs |
| Subcostals Nerve | Intercostal Nerves |
| Subcostals Blood | Posterior Intercostal Arteries |
| Transversus Thoracis Origin | Internal Aspect of Sternum & Adjacent Costal Cartilages of Ribs 3-6 |
| Transversus Thoracis Insertion | Internal Aspect of Costal Cartilages of Ribs 2-6 |
| Transversus Thoracis Action | Depresses Upper Ribs |
| Transversus Thoracis Nerve | Intercostal Nerves |
| Transversus Thoracis Blood | Anterior Intercostal Arteries |
| Subcostals Origin | Posteriorly on Internal Aspect of Lower 6 |
| Subcostals Insertion | Internal Aspect of 2nd & 3rd Rib Below |
| Subcostals Action | Depresses Lower Ribs |
| Subcostals Nerve | Intercostal Nerves |
| Subcostals Blood | Posterior Intercostal Arteries |
| Transversus Thoracis Origin | Internal Aspect of Sternum & Adjacent Costal Cartilage of Ribs 3-6 |
| Transversus Thoracis Insertion | Internal Aspect of Costal Cartilage of Ribs 2-6 |
| Transversus Thoracis Action | Depresses Upper Ribs |
| Transversus Thoracis Nerve | Intercostal Nerves |
| Transversus Thoracis Blood | Anterior Intercostal Arteries |
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