Unusual third head of the sternocleidomastoid muscle from the investing layer of cervical fascia / Inusual tercera cabeza del músculo esternocleidomastoideo desde la lámina superficial de la fascia cervical
Int. j. morphol
; 30(3): 783-785, Sept. 2012. ilus
Article
in English
| LILACS
| ID: lil-665478
Responsible library:
CL1.1
ABSTRACT
The abnormal origin, presence of additional head and layered arrangement of fibers are the reported variations of sternocleidomastoid muscle in the past. In the present case we report a rare unusual origin of third head of the sternocleidomastoid muscle in a 60 year-old male cadaver. This additional head originated from the investing layer of cervical fascia in the roof of the subclavian triangle close to the clavicle and traversed obliquely upward, forward and fused with clavicular head. The insertion and nerve supply of the muscle was found to be normal...
RESUMEN
El origen anormal, presencia de una cabeza adicional y disposición en capas de fibras son las variaciones reportadas del músculo esternocleidomastoideo. En el presente estudio, se presenta un origen poco habitual de la tercera cabeza del músculo esternocleidomastoideo en un cadáver de sexo masculino de 60 años. La cabeza supernumeraria se originaba en la lámina superficial de la fascia cervical en el techo del triángulo subclavio próximo de la clavícula y cruzaba oblicuamente hacia arriba y adelante para fusionarse con la cabeza clavicular. La inserción e inervación del músculo eran normales...
Full text:
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Collection:
International databases
Database:
LILACS
Main subject:
Neck Muscles
Limits:
Humans
/
Male
Language:
English
Journal:
Int. j. morphol
Journal subject:
Anatomy
Year:
2012
Document type:
Article
Affiliation country:
India
Institution/Affiliation country:
Manipal University/IN