fasciles

Parallel fascicles

Fascicles run parallel to the long axis of the muscle. They generally provide a greater range of motion and speed.

Convergent fascicles

: Fascicles originate over a broad area and converge toward a single, common attachment site or tendon (e.g., pectoralis major). This pattern allows versatile and strong pulls.

Pennate muscles

fascicles are arranged obliquely (at an angle) to a central tendon, resembling a feather. Because they pack more muscle fibers into a smaller area, pennate muscles generate high force, though they have a shorter range of motion:

circular muscles

Fascicles are arranged in concentric rings around an opening. When they contract, they constrict the diameter of the passage