Hello I Am Looking For Someone To Write An Essay On Jaws Anatomical Correlates O

Hello, I am looking for someone to write an essay on JAWS: anatomical correlates of feeding behavior. It needs to be at least 500 words.

These cross bridges in turn determine the amount of tension generated during a contraction event in a masticatory muscle fiber. During contraction activity myosin heads in the zone of overlap binds to active sites and produce stretch. Therefore the stretch or strain generated by the entire muscle fiber can thus be linked to the morphology of an individual sarcomere.

There is reduced tension generated by muscles fibers with short sarcomeres when stimulated. This is attributed to the fact that there is disruption of physiology of thick and thin filaments where the thick filaments fill to capacity against the Z lines. The thin filaments extending across the sarcomere overlap the filaments on the other side. Despite the fact that cross-bridge binding takes place, the myosin heads cannot pivot hence no stretch produced.

The extent at which muscle stretches is controlled by connective tissue surrounding the muscle and the titin filaments that bind the thick filaments to Z lines in the muscle fiber. In the case study experiments any further increase in sarcomere length reduces the tension generated by reducing the number of potential cross-bridge interactions and size of the zone of overlap .When this zone of overlap is at its lowest level, there is no interaction between the thin and thick filaments. The muscle generates no tension, and cannot contact. Only within the optimal brackets of sarcomere lengths can the maximum number of cross-bridges be formed thereby generating a greater tension. When the muscle fibers are stimulated within a small range of resting lengths they produce a forceful contraction. The sarcomere lengths of the masseter and temporalis muscle range between 75 to 130 percent of the optimal length. .

Muscle fiber orientation is considered in functionality of the jaw. For a given muscle mass, fibers oriented at a particular angle to the muscle force-generating axis tend to be shorter, in contrast to longer fibers that

 

"Looking for a Similar Assignment? Get Expert Help at an Amazing Discount!"