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【Location】In the anterior region of neck，on the anterior midline，superior to the thyroid cartilage，in the depression superior to the hyoid bone.
【Manipulation Method】Puncture obliquely upward 0.5-0.8 cun，without retention of needle.
【Indications】Sublingual swelling and pain，sore throat，sluggish movement of the tongue，salivation，sore of tongue and mouth，aphasia due to apoplexy，sudden loss of voice，globus hystericus，goiter.
【Stratified anatomy】（Fig.2-1）
Fig.2-1 Transverse section of Lianquan（CV 23）
（1）Skin The skin is distributed by transverse cervical n..
（2）Subcutaneous tissue There are the branches of transverse cervical n.，platysma and anterior jugular v..
（3）Between the left and right anterior belly of digastric The digastrics is located below body of mandible and composed of anterior and posterior belly.
（4）Mylohyoid The mylohyoid is located in the medial side of the body of mandible，between mandible and hyoid bone.
（5）Geniohyoid The geniohyoid is located above the mylohyoid，both sides of median line，below the tongue.
（6）Genioglossus The gemoglossus is one of the extrinsic lingual m.and located above the geniohyoid.