THE STUDY OF THE ARRANGEMENT OF FASCICLES OF MUSCULOCUTANEOUS NERVE IN THE BRACHIAL PLEXUS
- VernacularTitle:肌皮神经功能束在臂丛内各段的定位解剖研究
- Author:
Bo ZHANG
;
Yanzheng YU
;
Guozheng BAO
;
Xiaomin CHENG
- Publication Type:Journal Article
- Keywords:
Musculocutaneous nerve;
Brachial plexus;
Microsurgical anatomy
- From:
Acta Anatomica Sinica
1953;0(01):-
- CountryChina
- Language:Chinese
-
Abstract:
The arrangement of fascicles of musculocutaneous nerve at different levels in brachial plexus were studied in 22 adult cadavers. The nerve fascicles were dissociated and traced under operative microscope. At the distal end of the musculocutaneous nerve, the muscular and cutaneous fascicles are separated.The muscular fascicles are situated at the latero-anterior quadrant of the cross-section of the nerve.The mixed fascicle are become predominated proximally. The muscular and the muscular predominated mixed fascicles are still situated at latero-anterior quadrant. At the level 1 cm below the clevicle, 1cm and 1.5 cm above the clevicle,the fascicles of the nerve are situated at the lateral superio-anterior quadrant of the crosssection of relative parts of brachial plexus. The fascicles of the nerve are situated at the anterior quadrant of the crosssection of superior trunks. The fibers of musculocutaneous nerve are originate from C5, C6 and C7, being 31.6,％, 64.6％ and 3.8％,respectively.
