Applied Anatomy of the Platysma
- VernacularTitle:颈阔肌的应用解剖
- Author:
Gengli CHENG
- Publication Type:Journal Article
- Keywords:
Plalysrna;
Rhytidoplasty;
Facial nerve
- From:Journal of Third Military Medical University
1984;0(02):-
- CountryChina
- Language:Chinese
-
Abstract:
The platysma of 50 sides of abult cadavers were studied under operating microscope. 9 areas are divided on each side of the neck, and the anterior 6 of the 9 are occupied by the platysrna. The medial border of the muscle corresponds to a line starting from the middle point of the mental-hyoid line and ending laterally to the sternal end of the clavicle. The angle formed by the medial borders of the platysmas of two sides is about 40. The lateral border corresponds to a line starting from a little back of the angle of the mandible and ending 3 cm medial to the acromion end of the clavicle. The inferior border of the platysma lies in the first intercostal space. There are several gaps in the lower portion of some of the muscles. The superior border attaches to the body of the mandible and fuses with some of the expression muscles. The area of the platys-ma is about 150cm2, of which about 120 cm2 are located above the clavicle. The fibers of the posterior portion of the muscle are in the form of a double curve. The platysma is loosely attached to the underlying structures.Several branches of the facial nerve and the cervical plexus were also studied. In addition, certain problems concerning the plastic reconstruction on the neck and face were discussed.
