ANATOMY

Detailed explanation-1: -Other parallel muscles have a larger central region called a muscle belly tapering to tendons on each end. This arrangement is called fusiform such as the biceps brachii (see Figure 11.2.

Detailed explanation-2: -Smooth muscle has no striations, is not under voluntary control, has only one nucleus per cell, is tapered at both ends, and is called involuntary muscle.

Detailed explanation-3: -At each end of the skeletal muscle the connective tissue fibers of the epimysium, perimysium and endomysium taper to form a tendon, which attaches the muscle to another muscle or to skin, cartilage, or bone.

Detailed explanation-4: -In parallel-fibered muscles, the fibers extend nearly the entire length of the muscle and are parallel to the muscle’s axis of force transmission (Fig. 1, images 1, 2, and 9). The fibers in pennate muscles are arranged at an angle relative to the muscle’s axis of force transmission, the pennation angle (Fig.

Detailed explanation-5: -When a group of muscle fibers is “bundled” as a unit within the whole muscle it is called a fascicle. Fascicles are covered by a layer of connective tissue called perimysium (see Figure 10.3). Fascicle arrangement is correlated to the force generated by a muscle and affects the muscle’s range of motion.