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21 Cards in this Set
- Front
- Back
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Erector Spinae Group |
(Origins lower, insertions higher) O: thoracolumbar aponeurosis, iliac crests, lumbar SP, last 2 thoracic SPs I: various posterior ribs, SP and TP of Thoracic and Cervical Vertebrae; mastoid process of the temporal bone A: Bi- extension of the vertebral column; Uni- lateral flexion of the vertebral column N: Dorsal Ramus |
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Spinalis |
(most medial, from SP to SP) O: SP of Upper Lumbar (L1+L2); Lower Thoracic Vertebrae (T11, T12); Ligamentum Nuchae; Spinous I: SP of T1-T8, SP of C2 A: Bi- Extension of vertebral column; Uni- Lateral flexion of the vertebral column N: Dorsal Ramus |
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Longissimus |
(big daddy longest, comes off of TPs and ribs) O: Thoracolumbar aponeurosis; lumbar transverse processes; TP of T1-T5; APs of C5-C7 I: Lower 9 ribs; TP of Thoracic and Cervical Vertebrae except C1; Mastoid Process A: Bi- extension of the vertebral column; Uni- lateral flexion of the vertebral column, aids in rotation of the head to the same side N: Dorsal Ramus |
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Iliocostalis |
(hips and ribs) O: Thoracolumbar aponeurosis; sacrum; iliac crests; and posterior surface of the ribs 1-12 I: Posterior ribs of 1-12; TP of C4-C7 A: Bi- extension of the vertebral column; Uni- lateral flexion of the vertebral column N: Dorsal Ramus |
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Multifidi |
(Transversospinalis group, deep to erector spinaes, multi levels, in middle) O: Sacrum; mamillary processes of the lumbar vertebrae; TP of Thoracic and Cervical Vertebrae I: SP 2 to 4 levels above Origin A: Extends the vertebral column and rotates the vertebral column to the opposite side N: Dorsal Primary Division of the Spinal Nerves |
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Rotatores |
(Transversospinalis Group, deepest muscle in the laminar groove) O: TP of each vertebrae I: SP of lumbar through C2, span 1-2 vertebrae A: Extends the vertebral column, rotates the vertebral column to the opposite side N: Dorsal Primary Division of Spinal Nerves |
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Semispinalis |
(Transversospinalis Group) O: TP of Thoracic and Lower Cervical Vertebrae I: SP of Upper Thoracic and Cervical Vertebrae (T4-C2), below superior nuchal line of occiput A: Extend vertebral column C spine and head N: Dorsal Primary Division of Spinal Nerves |
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Splenius Capitis |
(Splenius Muscles, create strength, keep you upright) O: Ligamentum nuchae, SP of C7-T3 I: mastoid process, lateral superior nuchal line A: Uni- rotates the head to the same side and laterally flexes the head and neck; Bi- extends the head N: Branches of the Dorsal Division of the Cervical Nerves |
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Splenius Cervicis |
(Splenius Muscles, create strength, keep you up right, deep to capitis) O: SP T3-T6 I: TP of C1-C3 A: Uni- rotates the head to the same side and laterally flexes the head and neck; Bi- extends the head N: Branches of the Dorsal Division of the Cervical Nerves |
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Rectus Capitis Posterior Major |
(Suboccipital Muscles, clinically important, between skull, C1, C2, helps stabilize the atlas and axis) O: SP of Axis C2 I: Inferior nuchal line of ociput A: Rock and tilt head back into extension, rotates head to same side N: Suboccipital, dorsal ramus of C1
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Rectus Capitis Posterior Minor |
(Suboccipital Muscles, helps stabilize the atlas and axis) O: Tubercle of posterior arch of C1 I: Inferior nuchal line of the occiput A: Rock and tilt head back into extension N: Suboccipital Nerve |
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Oblique Capitis Superior |
(Suboccipital Muscles, helps stabilize the atlas and axis) O: TP of Atlas I: Between the nuchal lines of the occiput A: Rock and tilt head back into extension N: Suboccipital Nerve |
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Oblique Capitis Inferior |
(Suboccipital Muscles, helps stabilize the atlas and axis) O: SP of axis I: TP of C1 A: Rotates head to the same side N: Suboccipital Nerve |
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Quadratus Lumborum |
(Deep to erector spinae, spondylolethesis, hip hiker commonly injured, not in lamina groove, completes abdominal cylinder, LBP) O: Posterior Iliac rest, Iliolumbar Ligament I: Last Rib and TP of L1-L4 A: Uni- elevates the hip, laterally flexes the vertebral column; Bi- assists in extension of the vertabral column, fixes the last rib during respiration N: Branches of the ventral division of T12, L1-3 or 4 |
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Diaphragm |
(Has 3 holes, 2 BVs, 1 esophogus, primary muscle of respiration) O: Inner part of the Xiphoid Process, inner surface of the lower 6 ribs, upper 2 or 3 lumbar vertebrae I: Central Tendon A: Draws central tendon down increasing the volume of the thoracic cavity N: Phrenic Nerve |
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Rectus Abdominus |
(Abdominal) O: Crest of the pubis, pubic symphysis I: Cartilage of ribs 5-7, Xiphoid process A: Flexes the vertebral column, compresses the abdomen, aids in forced expiration N: T6, T7-11, T-12 ventral rami |
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External Oblique |
(Abdominal) O: External surfaces of 5th and 12th ribs I: Anterior iliac crest, abdominal aponeurosis to the linea alba A: Bi- flexes the thorax, compresses abdominal contents, aids in forced expiration; Uni- laterally flexes the vertebral column to the same side, rotates the vertebral column to the opposite side N: Branches of Intercostals |
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Internal Oblique |
(Abdominal) O: Lateral inguinal ligament, iliac crest, thoracolumbar fascia I: Cartilage of the bottom 3 ribs, abdominal aponeurosis to the linea alba A: Bi- Flexes the thorax, compresses the abdominal contents, aids in forced expiration; Uni- Laterally flexes the vertebral column to the same side, rotates the vertebral column to the same side N: Branches of intercostals |
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Transverse Abdominus |
(Abdominal) O: Lateral inguinal ligament, iliac crest, thoracolumbar fascia, cartilage of the lower 6 ribs I: Abdominal Apoeurosis to linea alba A: Compresses the abdominal contents, aids in forced expiration N: Branches of Intercostals |
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External Intercostals |
(Intercostals) O: Inferior margin of the rib above I: Superior margin of rib below A: Draws the ventral part of the ribs upward, increasing the space in the thoracic cavity N: Intercostal Nerve |
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Internal Intercostals |
(Intercostals) O: Superior margin of the rib below I: Inferior margin of the rib above A: Draws the ventral part of the ribs downward, decreasing the space in the thoracic cavity N: Intercostal Nerve |
