Posterior Triangle of the Neck
Lymphatic Drainage and Associated Nodes
The posterior triangle of the neck is a key anatomical area housing essential lymph nodes that contribute to immune function.
Posterior Triangle of the Neck: Lymphatic Drainage and Associated Nodes
The posterior triangle of the neck is an important anatomical region that contains vital structures, including lymph nodes essential for immune function.
Anatomical Boundaries
- Anterior: Sternocleidomastoid muscle
- Posterior: Trapezius muscle
- Inferior: Clavicle
Lymphatic Drainage
The lymphatic system plays a critical role in filtering harmful substances and maintaining immune response.
Superficial Cervical Nodes
Located along the external jugular vein, these nodes drain the scalp, face, and superficial regions of the posterior triangle.
Deep Cervical Nodes
Situated near the internal jugular vein, they receive drainage from deeper structures including the pharynx, larynx, and thyroid gland.
Clinical Significance
Enlargement of these lymph nodes may indicate infection, malignancy, or systemic disease, making their examination crucial in clinical practice.
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