Anatomy and Physiology of Children and Adolescents - M. R. Sapin 2007

Musculoskeletal system
Muscular system
Muscles of the human body

Depending on their Location in the body and for convenience of study, the Muscles are divided into those of the HEAD, neck, and trunk, as well as the Muscles of the upper and lower extremities.

Muscles located in different regions of The Human Body not only perform various Functions but also possess distinct structural features. On the limbs, featuring long bony levers adapted for locomotion, grasping, and holding various objects, muscles are typically spindle-shaped, with a longitudinal or oblique arrangement of Muscle fibers, and narrow, long tendons. In the trunk region, ribbon-like muscles with broad flat tendons participate in forming its walls. Such broad tendons are called aponeuroses. In the head region, masticatory (chewing) muscles originate with one end on the stationary BONES OF THE Skull base and attach with the other end to the only movable part of the skull—the Mandible. Facial muscles originate on the skull bones and attach to the Skin. Upon contraction of the facial muscles, the relief of the facial skin changes, forming facial expressions.



Last update: 10/08/2026

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