Questions and Answers
What is the function of longus coli?
What is another name for Sibson's fascia?
Suprapleural membrane
Which of the following structures go through Sibson's fascia? (Select all that apply)
What does the right lymphatic duct drain?
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Where does the thoracic duct drain lymph from?
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If lymphatic return is inhibited, it can lead to lymphatic stasis.
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Which vertebra is functionally connected to the sternum?
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Sternal anomalies can affect cardiac and pulmonary function.
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What occurs during sternal flexion?
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Describe sternal right rotation.
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What is sternal translation?
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What is the condition called when the entire sternum prefers flexion, right sidebending, and right rotation?
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Pectus excavatum may involve flexion of the manubrium.
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The thoracic inlet is bounded by the manubrium, 1st ribs, and T1.
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Study Notes
Longus Colli
- Flexes and laterally moves the neck.
Sibson's Fascia
- Originates from deep cervical fascia surrounding longus coli, connects to the superomedial border of the 1st rib.
- Contiguous with axillary sheath and endothoracic fascia; also known as suprapleural membrane.
- Changes on one side can affect the opposite side (contralateral effects).
- Influences tension and continuity across various body fascias, acting as a functional diaphragm at the thoracic inlet.
- Can interfere with numerous anatomical structures due to its location and function.
Structures Passing Through Sibson's Fascia
- Includes Recurrent Laryngeal Nerve, Vagus Nerve, Stellate Ganglion, Phrenic Nerve, Brachial Plexus, Common Carotid Artery, Vertebral Artery, Thyrocervical Trunk, Internal Thoracic Artery, Internal Jugular Vein, Subclavian Artery and Vein, Thoracic Duct, Right Lymphatic Duct, and Anterior Cervical Lymph Nodes.
- Increased tension may cause stenosis or altered neurological impulses, potentially disrupting overall health.
- Thoracic duct creates a loop through Sibson's fascia, essential for lymphatic drainage in the body.
Lymphatic Drainage
- Right lymphatic duct drains upper right quadrant lymph into the right subclavian vein.
- Thoracic duct drains lymph from the rest of the body into the left jugulovenous angle.
Effects of Lymphatic Return Inhibition
- Disruption of osmotic and oncotic pressure maintenance leads to lymphatic stasis and affects cellular, tissue, and organ health.
Sternum Connections and Assessment
- Functionally connected to T4; dysfunction at T4 may necessitate treating the sternum and vice versa.
- Evaluating the sternum as a unit is clinically efficient; individual anomalies can impact cardiac and pulmonary function.
Sternal Movement Patterns
- Sternal Flexion: Superior aspect moves anteriorly, inferior aspect moves posteriorly; reverse occurs in extension.
- Sternal Right Rotation: Right side moves posteriorly, left side moves anteriorly; reverse for left rotation.
- Sternal Right Sidebending: Superior aspect shifts right, inferior aspect shifts left; reverse for left sidebending.
- Sternal Translation: Movement superiorly or inferiorly along a vertical axis.
Sternal Diagnosis
- Sternum FRSR: If sternum prefers flexion, right sidebending, and right rotation, diagnosed as flexed, sidebent right, and rotated right. Kuchera refers to this as forward bending (FB SR RR).
Pectus Deformities
- Pectus Excavatum: Involves manubrium flexion and sternal body extension.
- Pectus Cavinatum: Involves manubrium extension and sternal body flexion.
Thoracic Inlet
- Defined by the manubrium, 1st ribs, and T1 vertebra.
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Description
Explore key concepts related to Sibson's fascia and longus coli through this set of flashcards. Each card provides concise definitions that will enhance your understanding of neck anatomy and musculature. Perfect for students of anatomy and allied health professionals.
