Abstract
Sarcomere lengths of the masseter and temporal muscles of the rat were measured, by conventional histological techniques, at varying degrees of stretch. It was found that the anterior fibres of the deep masseter muscle exhibit more lengthening of the sarcomeres as the mouth is opened, the posterior fibres and those of part of the temporal muscle being extended to a lesser extent. Since sarcomere length determines the ability of skeletal muscle to develop active tension, these results may indicate a variation in the relative effectiveness of the muscles as jaw position varies in normal function.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
