Wrinkle, Lowering Brow Muscle And Facial Nerve Temporal Branch Of The Relationship Between The Anatomical Study

Objective: To investigate the relationship between corrugator supercilii, depressor supercilii, procerus and temporal branch of the facial nerve. To provide experimental and theoretical evidences for the improvement of modus operandi of clinical frontal rhytidectomy using by endoscope. Methods: Gross anotomy, Microdissection and Sihler's nerves stain were employed to observe and measure corrugator supercilii, depressor supercilii, procerus and temporal branch of the facial nerve. Results: The muscle length of corrugator supercilii, depressor supercilii and procerus was 25.31±0.63mm, 26.73±0.89mm and 27.14±0.78mm, and muscle width of them was 10.72±0.51mm, 4.78±0.27mm and 5.32±0.31mm, respectively; The control nerves of corrugator supercilii and depressor supercilii come from the branch of anastomotic network of temporal branch of the facial nerve; The control nerves of procerus 90% come from the branch of anastomotic network of temporal branch of the facial nerve, and 7% of procerus come from the branch of anastomotic network of temple and quanliao; In coordinate system with origin of supraorbital notch(supraorbital foramen), the distances from spots of entering muscles of nerves to X axis and Y axis, including corrugator supercilii, depressor supercilii and procerus: the distances of X axis were (26.31±0.87～18.05±0.83)mm, the distances of Y axis were(4.54±0.33～2.11±0.21)mm(corrugator supercilii); the distances of X axis were(13.47±0.53～15.62±0.41)mm, the distances of Y axis were(1.33±0.18～5.74±0.27)mm (depressor supercilii); the distances of X axis were(20.37±0.45～23.64±0.71)mm, the distances of Y axis were(1.24±0.19～6.83±0.35)mm (procerus); corrugator supercilii was divided into transversal type and oblique type, and proportion of oblique type(68%) was higher than transversal type; Temporal branch of the facial nerve control corrugator supercilii, depressor supercilii and procerus. Conclusion: The nerves of corrugator supercilii and depressor supercilii all come from temporal branch of the facial nerve, the nerve of procerus 90% come from temporal branch of the facial nerve, but about 7% of the nerve of procerus come from the branch of anastomotic network of temple and quanliao; The temporal branches form conferted and complicated network, including anastomotic network of temporal branch of the facial nerve and anastomotic network of temple and quanliao; The coordinates of spots of entering muscles of nerves, which are the branch of control nerves of corrugator supercilii, depressor supercilii and procerus, show central tendency.