Muscles Of Back Of Thigh- Introduction: Posterior thigh muscles (hamstrings)The hamstring muscles are a group of three long muscles which is located in the posterior compartment of the thigh, shaping up the surface anatomy of this region. The Hamstring group of muscles includes the biceps femoris, semitendinosus, and semimembranosus muscles. The hamstrings muscles are closely…
Introduction: Anatomically, the leg is defined as the part of the lower limb below the knee. It consists of three-compartment, posterior, anterior, and lateral compartments. In accordance, the muscles of the leg are organized into three different groups:The Anterior group(dorsiflexor group), contains the tibialis anterior, extensor digitorum longus, fibularis tertius, and extensor hallucis longus muscles….
Introduction The abdominal muscles are the muscles forming the abdominal walls, the abdomen being the part of the trunk connecting the thorax and pelvis. An abdominal wall is formed by the skin, fascia, and muscle and encases the abdominal cavity and viscera. The abdominal muscles help to support the trunk, allow movement, hold organs in…
The muscles of the Back are divided into three-layer – The superficial layer, the intermediate layer, and the Deepest layer the muscles. Superficial muscles of the back :The superficial back muscles are the muscles found just below the skin. Within this group of back muscles, you will find the latissimus dorsi, the trapezius, levator scapulae,…
Introduction : The Rotator Cuff (RC) is a common name for the group of 4 distinct muscles and their tendons, which provide strength and stability during movement of the shoulder complex. The Rotator Cuff muscles arise from the scapula and connect to the humerus head, forming a cuff around the glenohumeral (GH) joint. The rotator…
Introduction : The four 4 sub-components are: Rectus femoris : Origin : The rectus femoris is a fusiform muscle that contains two heads. It originates from two sites on the ilium; the anterior inferior iliac spine (AIIS)(straight head) and supraacetabular groove (reflected head). The two heads unite into a common muscle belly that courses down…
Semitendinosus Muscle Anatomy Semitendinosus muscle is one of 3 Hamstring group muscles that are located backside of the thigh and is responsible for the flexion of the knee. Other Hamstring muscles are the biceps femoris and semimembranosus. All three muscles (semimembranosus, semitendinosus, and biceps femoris) are part of the hamstring muscles. Semitendinosus and Semimembranosus are…
Pectoralis Major Muscle Anatomy The pectoralis major is a prominent muscle located in the chest region of the human body. It is a large, fan-shaped muscle that plays a crucial role in the movement of the shoulder and arm. If you enjoy working out, you may also hear people refer to these muscles as the…
Middle Pharyngeal Muscle Anatomy The middle pharyngeal constrictor is a fan-shaped sheet-like muscle of the pharynx. This muscle, along with the superior and inferior pharyngeal constrictors, forms the bulk of the pharyngeal wall. The pharyngeal constrictor muscles create a peristaltic wave that facilitates passage of the food bolus inferiorly, from the pharynx towards the esophagus,…
Anatomy of Zygomaticus Major Zygomaticus major shown in red. It is a muscle of facial expression which draws the angle of the mouth superiorly and posteriorly to allow one to smile. Origin: Anterior surface of zygomatic bone. Insertion: Modiolus at angle of mouth. Nerve supply: Buccal branch of facial nerve (VII). Blood supply: Superior labial…
