Movement Anatomy - Class 11

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Definitions/Anatomy/Nerves (Lumbosacral/Brachial)

16 Terms

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<p><span style="font-family: &quot;Aptos Display&quot;;">Lumbar Vertebrae Review and Palpation</span></p>

Lumbar Vertebrae Review and Palpation

Facet joints of the upper lumbar region are oriented close to the sagittal plane but transition toward the frontal plane in the lower region

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What is the Facet joint orientation?

knowt flashcard image
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<p>What is this muscle? What does it innervate?</p>

What is this muscle? What does it innervate?

Rectus Abdominus

Action: Flexion of trunk, posterior pelvic tilt

Innervation: Intercostal Nerves (T7 – T12)


<p>Rectus Abdominus </p><p><span style="font-family: &quot;Aptos Display&quot;;">Action: Flexion of trunk, posterior pelvic tilt<br><br>Innervation: Intercostal Nerves (T7 – T12)</span></p><p></p>
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<p>What is this muscle? What does it innervate? What role does it play? </p>

What is this muscle? What does it innervate? What role does it play?

External Oblique (Anterior-Lateral Muscles of the Trunk)

Action: Flexion of the trunk, posterior pelvic tilt, contralateral rotation, lateral flexion
Innervation: Intercostal nerves (T8-T12) 

<p>External Oblique (<span style="font-family: &quot;Aptos Display&quot;;">Anterior-Lateral Muscles of the Trunk)</span></p><p><span style="font-family: &quot;Aptos Display&quot;;">Action: Flexion of the trunk, posterior pelvic tilt, contralateral rotation, lateral flexion<br>Innervation: Intercostal nerves (T8-T12)&nbsp;</span></p>
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<p>What is the muscle? What does it innervate? What role does it play? </p>

What is the muscle? What does it innervate? What role does it play?

Internal Oblique (Anterior-Lateral Muscles of the Trunk)

Action: Flexion of the trunk, posterior pelvic tilt, lateral flexion, same side rotation
Innervation: Intercostal nerves (T8-T12)  

<p>Internal Oblique (<span style="font-family: &quot;Aptos Display&quot;;">Anterior-Lateral Muscles of the Trunk)</span></p><p><span style="font-family: &quot;Aptos Display&quot;;">Action: Flexion of the trunk, posterior pelvic tilt, lateral flexion, same side rotation<br>Innervation: Intercostal nerves (T8-T12) &nbsp;</span></p>
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<p>What is this muscle? What does it innervate? What role does it play? </p>

What is this muscle? What does it innervate? What role does it play?

Transverse Abdominis (Anterior-Lateral Muscles of the Trunk)

Action: Increases intra-abdominal pressure and tension in the thoracolumbar fascia
Innervation: Intercostal Nerves (T7-T12)  

<p>Transverse Abdominis (<span style="font-family: &quot;Aptos Display&quot;;">Anterior-Lateral Muscles of the Trunk)</span></p><p><span style="font-family: &quot;Aptos Display&quot;;">Action: Increases intra-abdominal pressure and tension in the thoracolumbar fascia <br>Innervation: Intercostal Nerves (T7-T12) &nbsp;</span></p>
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<p>What are these muscles? What is their name combined? What role does it play? </p>

What are these muscles? What is their name combined? What role does it play?

Iliacus (Anterior-Lateral Muscles of the Trunk) - Anterior View

Psoas major

Combined: Iliopsoas

<p>Iliacus (<span style="font-family: &quot;Aptos Display&quot;;">Anterior-Lateral Muscles of the Trunk) - Anterior View </span></p><p>Psoas major</p><p>Combined: <span style="font-family: &quot;Aptos Display&quot;;">Iliopsoas</span></p>
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<p>What is this muscle? What does it innervate? What role does it play? </p>

What is this muscle? What does it innervate? What role does it play?

Quadratus lumborum (Anterior-Lateral Muscles of the Trunk) - Anterior View

Action: Extension of the lumbar region, lateral flexion
Innervation: Ventral Rami (T12-L3)  

<p>Quadratus lumborum (<span style="font-family: &quot;Aptos Display&quot;;">Anterior-Lateral Muscles of the Trunk) - Anterior View </span></p><p><span style="font-family: &quot;Aptos Display&quot;;">Action: Extension of the lumbar region, lateral flexion <br>Innervation: Ventral Rami (T12-L3)&nbsp;&nbsp;</span></p>
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<p>What muscle/muscle group? What does it innervate? What role does it play? </p>

What muscle/muscle group? What does it innervate? What role does it play?

Muscle: Iliocostalis (Posterior Muscles of The Trunk) - Posterior

  • Iliocostalis Cervicis

  • Iliocostalis Thoracis

  • Iliocostalis Lumborum

Muscle Group: Erector Spinae Muscles

•Action: Extension and lateral flexion

•Innervation: Dorsal rami of adjacent spinal nerves

<p>Muscle: Iliocostalis (<span style="font-family: &quot;Aptos Display&quot;;">Posterior Muscles of The Trunk) - Posterior </span></p><ul><li><p>Iliocostalis Cervicis</p></li><li><p>Iliocostalis Thoracis</p></li><li><p>Iliocostalis Lumborum</p></li></ul><p>Muscle Group: <span style="font-family: &quot;Aptos Display&quot;;">Erector Spinae Muscles</span></p><p>•Action: Extension and lateral flexion</p><p>•Innervation: Dorsal rami of adjacent spinal nerves</p>
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<p>What muscle/muscle group? What does it innervate? What role does it play?</p>

What muscle/muscle group? What does it innervate? What role does it play?

Muscle: Longissimus (Posterior Muscles of The Trunk) - Posterior

  • Longissimus Capitis

  • Longissimus Cervicis

  • Longissimus Thoracis

Muscle group: Erector Spinae Muscles

•Action: Extension, lateral flexion

•Innervation: Dorsal rami of adjacent spinal nerves

<p>Muscle: Longissimus (<span>Posterior Muscles of The Trunk) - Posterior </span></p><ul><li><p>Longissimus Capitis </p></li><li><p>Longissimus Cervicis </p></li><li><p>Longissimus Thoracis </p></li></ul><p>Muscle group: <span>Erector Spinae Muscles</span></p><p>•Action: Extension, lateral flexion</p><p>•Innervation: Dorsal rami of adjacent spinal nerves</p>
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<p>What muscle/muscle group? What does it innervate? What role does it play?</p>

What muscle/muscle group? What does it innervate? What role does it play?

Muscle: Spinalis (Posterior Muscles of the trunk) - Posterior

  • Spinalis Cervicis

  • Spinalis Thoracis

Muscle Group: Erector Spinae Muscles

•Action: Extension

•Innervation: Dorsal rami of adjacent spinal nerves

<p>Muscle: Spinalis (Posterior Muscles of the trunk) - Posterior </p><ul><li><p>Spinalis Cervicis </p></li><li><p>Spinalis Thoracis </p></li></ul><p>Muscle Group: <span>Erector Spinae Muscles</span></p><p><span>•Action: Extension</span></p><p><span>•Innervation: Dorsal rami of adjacent spinal nerves</span></p>
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<p>What muscles/muscle group is this? What is the view?</p>

What muscles/muscle group is this? What is the view?

Muscles: Posterior View

  • Semispinalis Capitis

  • Semispinalis Cervicis

  • Semispinalis Thoracis

Muscle Group: Transversospinal Muscles and Short Segmental Group

<p>Muscles: Posterior View </p><ul><li><p>Semispinalis Capitis </p></li><li><p>Semispinalis Cervicis </p></li><li><p>Semispinalis Thoracis</p></li></ul><p><span style="font-family: &quot;Aptos Display&quot;;">Muscle Group: Transversospinal Muscles and Short Segmental Group</span></p>
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<p>What muscles/muscle group is this? What is the view?</p>

What muscles/muscle group is this? What is the view?

Muscles: Posterior View

  • Multifidus

  • Levator Costae Brevis

  • Levator Costae Longus

  • Intertransversarius

Muscle Group: Transversospinal Muscles and Short Segmental Group

<p>Muscles: Posterior View </p><ul><li><p>Multifidus </p></li><li><p>Levator Costae Brevis</p></li><li><p>Levator Costae Longus </p></li><li><p>Intertransversarius </p></li></ul><p><span>Muscle Group: Transversospinal Muscles and Short Segmental Group</span></p>
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<p>What muscles/muscle group is this? What is the view?</p>

What muscles/muscle group is this? What is the view?

Muscles: Posterior View

  • Interspinalis (Superior)

  • Rotator Longus

  • Rotator Brevis

  • Interspinalis (Inferior)

Muscle Group: Transversospinal Muscles and Short Segmental Group

<p>Muscles: Posterior View</p><ul><li><p>Interspinalis (Superior)</p></li><li><p>Rotator Longus </p></li><li><p>Rotator Brevis </p></li><li><p>Interspinalis (Inferior)</p></li></ul><p>Muscle Group: Transversospinal Muscles and Short Segmental Group</p>
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<p>Identify the nerves of the Lumbosacral Plexus </p>

Identify the nerves of the Lumbosacral Plexus

  1. Iliohypogastric (3) (Transverse Abdominis, Internal Oblique, External Oblique)

  2. Ilioinguinal ^^ Same innervations

  3. Genitofemoral

  4. Lateral Femoral Cutaneous - Skin on anterolateral surface of thigh

  5. Obturator (5-6) - Hip external rotation/Adduction (Obturator externus, Adductor muscles (Adductor longus, Adductor brevis, Adductor magnus, Gracilis, Pectineus)

  6. Femoral (7) - Hip flexors/Knee extensors (Pectineus, Iliacus, Rectus femoris, Sartorius, Vastus medialis, lateralis, and intermedius)

  7. Tibial (10) - Knee flexors/Plantarflexion (Flexor Hallucis Longus, Flexor Digitorum Longus, Tibialis Posterior, Biceps femoris, Semitendinosus, Semimembranosus, Soleus, Gastrocnemius, Plantaris, Popliteus)

  8. Common peroneal/Deep fibular (6) - Dorsiflexion (Fibularis Longus, Fibularis Brevis, Extensor Hallucis Longus, Extensor Digitorum Longus, Tibialis Anterior, Short Head of the Biceps Femoris)

  9. Superior Gluteal (3) - Hip Abduction (Gluteus Medius, Gluteus Minimus, and TFL (Tensor Fasciae Latae)

  10. Inferior Gluteal (1) - Hip extensor (Gluteus Maximus)

  11. Posterior Cutaneous

  12. Perforating Cutaneous

  13. Pudendal

  14. Sciatic (Biceps femoris, Semitendinosus, Semimembranosus)?

  15. Lumbosacral trunk


<ol><li><p><strong>Iliohypogastric </strong>(3) (Transverse Abdominis, Internal Oblique, External Oblique)</p></li><li><p><strong>Ilioinguinal </strong>^^ Same innervations </p></li><li><p><strong>Genitofemoral </strong></p></li><li><p><strong>Lateral Femoral Cutaneous</strong> - Skin on anterolateral surface of thigh</p></li><li><p><strong>Obturator </strong>(5-6) - <em>Hip external rotation/Adduction</em> (Obturator externus, Adductor muscles (Adductor longus, Adductor brevis, Adductor magnus, Gracilis, Pectineus)</p></li><li><p><strong>Femoral </strong>(7) - <em>Hip flexors/Knee extensors </em>(Pectineus, Iliacus, Rectus femoris, Sartorius, Vastus medialis, lateralis, and intermedius)</p></li><li><p><strong>Tibial </strong>(10) -<em> Knee flexors/Plantarflexion </em>(Flexor Hallucis Longus, Flexor Digitorum Longus, Tibialis Posterior, Biceps femoris, Semitendinosus, Semimembranosus, Soleus, Gastrocnemius, Plantaris, Popliteus) </p></li><li><p><strong>Common peroneal/Deep fibular </strong>(6) - <em>Dorsiflexion </em>(Fibularis Longus, Fibularis Brevis, Extensor Hallucis Longus, Extensor Digitorum Longus, Tibialis Anterior, Short Head of the Biceps Femoris)</p></li><li><p><strong>Superior Gluteal</strong> (3) - <em>Hip Abduction</em> (Gluteus Medius, Gluteus Minimus, and TFL (Tensor Fasciae Latae)</p></li><li><p><strong>Inferior Gluteal </strong>(1) - <em>Hip extensor</em> (Gluteus Maximus)</p></li><li><p><strong>Posterior Cutaneous </strong></p></li><li><p><strong>Perforating Cutaneous </strong></p></li><li><p><strong>Pudendal </strong></p></li><li><p><strong>Sciatic </strong>(Biceps femoris, Semitendinosus, Semimembranosus)? </p></li><li><p><strong>Lumbosacral trunk </strong></p></li></ol><p></p>
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<p>Identify the nerves of the Brachial Plexus</p>

Identify the nerves of the Brachial Plexus

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