Diaphragm - Lateral Pterygoid
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What is the diaphram PA? | Upper lumbar vertebrae, lower 6 ribs and costal cartilages, xiphoid process.
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What is the diaphram DA? | Central tendon of diaphragm.
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What is the diaphram N? | Phrenic n. (C3, C4, C5)
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What is the diaphram A? | Flattens central tendon, increasing vertical diameter of thoracic cavity in inspiration.
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Multifidus PA? | Sacrum and TP C4-L5(dont need to know numbes).
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Multifidus DA? | SP C, T, L vertebrae (spanning 2-4 segments) and meniscus.
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Multifidus N? | DR.
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Multifidus A? | Bilaterally: Extension of vertebrae. Unilaterally: Contralateral rotation. May play a role in proprioception of the lumbar spine.
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Rotatores PA? | TP C2 to sacrum(dont need to know numbers)
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Rotatores DA? | Lamina of vertebrae 1-2 segments above origin.
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Rotatores N? | DR.
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Rotatores A? | Bilaterally: Extension of vertebrae. Unilaterally: Contralateral rotation.
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Longus Colli A? | Bilaterally: Flexes neck
Unilaterally: Flexes neck, contralateral rotation.
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Longus Capitus A? | Flexes head.
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Rectus Capitus Anterior A? | Flexes head.
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Rectus Capitus Lateralis A? | Flexes head
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Masseter PA? | Superficial portion: anterior 2/3rds of lower border of zygomatic arch.
Deep Portion: Medial surface of zygomatic arch
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Masseter DA? | lateral surface of ramus of mandible, coronoid process, angle of mandible.
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Masseter N? | CN V.
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Masseter A? | Elevates mandible closing jaws; superficial fibers may have some protruding action.
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Temporalis PA? | Temporal fossa and temporal fascia.
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Temporalis DA? | coronoid process and anterior border of ramus of mandible.
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Temporalis N? | CN V.
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Temporalis A? | Anterior fibers primarily elevate mandible closing jaws. Middle fibers elevate and protrude. Posterior fibers elevate and may slightly retrude
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Medial Pterygoid PA? | Medial surface of pterygoid plate.
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Medial Pterygoid DA? | Medial surface of ramus of mandible.
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Medial Pterygoid N? | CN V.
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Medial Pterygoid A? | Elevate and assist in protruding mandible.
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Lateral Pterygoid PA? | Inferior: inferior surface of the lateral pterygoid plate. Superior: Infratemporal surface of the greater wing of the sphenoid
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Lateral Pterygoid DA? | Inferior: mandibular condyle. Superior: articular capsule, disk, and mandibular condyle
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Lateral Pterygoid N? | CN V.
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Lateral Pterygoid A? | Inferior: Bilaterally: protrusion. Unilaterally: lateral deviation to the contralateral side. Superior: forward rotation of the articular disc during the power stroke of chewing
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What are the four trigeminal nuclei? | primary motor, spinal trigeminal, main sensory, mesencephalic
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Which of the two trigeminal nuclei are responsible for the muscles of mastication and jaw jerk reflex? | primary motor and mesencephalic
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Which one of the trigeminal nuclei are responsible for proprioception of the muscles of mastication? | mesencephalic
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Created by:
txst spr 2009
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