Chapter 15
The Muscular System
The muscular system is essential to the body's overall structure and function, playing a crucial role in movement, stability, and internal…
Fascicles are bundles of muscle fibers in a skeletal muscle. Muscle fascicle arrangement is directly associated with the power and range of motion of…
Muscle coordination is a complex and finely tuned process essential for smooth and purposeful movements like flexion, extension, adduction,…
The naming of the approximately 700 muscles in the human body is based on a set of criteria designed to provide descriptive information about each…
Skeletal muscles, the key players in our body's movement, can be classified into two groups based on their location and function: axial muscles…
The craniofacial muscles are a collection of approximately 20 thin skeletal muscles situated beneath the skin of the face and scalp. These muscles,…
The muscles of the eye are sophisticated structures that control eye movement and focus, allowing for the precise and rapid adjustments necessary for…
The anterior neck muscles are the group of muscles covering the front part of the neck. These muscles are classified into three subgroups. The first…
The muscles that move the head are a dynamic and complex group of structures that work together to facilitate a wide range of head movements,…
The back muscles that lie deep into the thoracolumbar fascia are called intrinsic or true back muscles. These muscles are divided into four layers:…
The thorax muscles are central to the body's respiration and provide essential support and movement for the upper body. They are intricately…
The abdominal wall encircles the abdominal cavity, providing flexible protection and shielding the internal organs from harm. It is bordered at the…
The muscles of the pelvic floor and perineum are crucial for supporting the pelvic organs, controlling continence, and aiding in sexual function,…
The muscles surrounding the shoulder girdle, including the clavicle and scapula, primarily stabilize the scapula. This stable base allows other…
Nine muscles are involved in arm movements. Two of these, the pectoralis major and latissimus dorsi, originate from the axial skeleton and are called…
The muscles that move the forearms can be divided into four groups: forearm flexors, forearm extensors, forearm pronators, and forearm supinators.…
The muscles of the forearm that move the wrist, hand, and digits are numerous and diverse. They can be classified into two groups based on their…
The thigh's motion is primarily governed by muscles originating in the pelvic girdle and inserted into the femur. One crucial muscle, the…
The movement of the legs is facilitated by numerous muscles located within the anterior, medial, and posterior compartments of the thigh.
Anterior…
The human leg comprises an intricate system of muscles that facilitate the movement of feet and toes. Within this system, the muscles are categorized…
Muscle fascicle length, which is commonly measured in vivo using traditional ultrasound, is an important parameter defining a muscle’s force…
"Affective" touch is believed to be processed in a manner distinct from discriminatory touch and to involve activation of C-tactile (CT) afferent…
Transcranial magnetic stimulation (TMS) is a common tool used to measure the behavior of motor circuits in healthy and neurologically impaired…
