Pennate Muscles

In a strap muscle there is little connective tissue within the muscle since most is concentrated in tendons at the end. Such muscles produce the tenderest meat fillet steak is the psoas muscle of a cow. Pennate muscles contain more connective tissue within the muscle itself and hence form the cheaper cuts of meat. 

Muscle Muscle mass (g) Muscle length (mm) Fiber length (mm) Pennation angle (o) Cross-sectional area (cm ) FL/ML ratio... 

Muscles with larger moment arms, longer muscle fibers, and less pennation tend to be capable of generating greater speed. Many of the same factors influencing strength, discussed earher, such as muscle... 

Fig. 4.2. Longitudinal extended field-of-view image demonstrating the normal quadriceps muscles in a 9-year-old child. Note the pennate appearance. The echogenic striae represent the perimysium surrounding the low echogenicity muscle fibres...

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