What is Subclavius Muscle? The subclavius muscle is a short, triangular muscle of the thoracic wall that locates beneath the clavicle. It begins from the 1st rib & courses laterally to ends on the undersurface of the middle 3rd of the clavicle. The primary function of the subclavius is to hold the clavicle during motions of the shoulder girdle. In addition, it…
What is Platysma Muscle? The platysma is a thin sheet-like muscle that is situated superficially within the anterior aspect of the neck. It begins in the upper thoracic & shoulder regions from a fascia that covers the pectoralis major & deltoid muscles. Its fibers ascend upper medially over the anterolateral aspect of the neck, to join to the mandible & the skin & subcutaneous tissue of the lower face. Unlike…
What are Infrahyoid Muscles? Infrahyoid muscles are also termed “strap muscles” which connect the hyoid, sternum, clavicle, & scapula. They are situated under the hyoid bone on the anterolateral surface of the thyroid gland & are involved in motions of the hyoid bone & thyroid cartilage during vocalization, swallowing, & mastication. They are composed of 4 paired muscles, organized into 2 layers as follows:…
What are Suprahyoid Muscles? There are numerous muscles in the neck. One of the classifications of the muscles of the neck is significant to the hyoid bone. Those muscles which are above the hyoid bone are termed supra-hyoid muscles, & those below it are known as infra-hyoid muscles. This group of muscles takes part in the…
Introduction The Adductor Brevis is the flat, triangular muscle that is found in the inner thigh. This muscle runs from the pubis to the medial aspect of the femur. Together with the adductor Longus, adductor Magnus, gracilis & pectineus muscles, it comprises a group of muscles called the adductor muscles of the thigh. These inner…
What is Teres Minor Muscle? Teres minor is a posterior muscle of the shoulder that enlarges between the scapula & the head of the humeral bone. It is one of the 4 muscles of the rotator cuff, along with the supraspinatus, infraspinatus, & subscapularis. Rotator cuff muscles act combine to control the movements of the humerus head & work as stabilizing it within the glenoid cavity…
What is adductor tendinopathy? Adductor tendinopathy describes a number of conditions that develop in & around of Adductor tendon in response to chronic overuse. At a histopathological level, there are changes in the molecular structure of the tendon, typically collagen separation & collagen degeneration & at a macroscopic level typically see tendon thickening, a loss…
This neck muscle spasm occurs when your neck muscles become tightened. In this condition, your neck becomes too painful & stiff, affecting the ability to turn your head. Stress-related muscle tension & and awkward neck movement is triggers of neck spasm.This muscle spasm is produce intense pain &this pain stays last for minutes, hours &…
What is Sternocleidomastoid Muscle? The sternocleidomastoid muscle is a 2-headed neck muscle, true to its name bears joining to the manubrium of the sternum (Sterno), the clavicle (cleido), & the mastoid process of the temporal bone (mastoid). It is a lengthened, bilateral muscle of the neck, which functions to flex the neck both laterally & anteriorly, as well as rotate the head opposite…
What is Pectoralis Minor Muscle? The pectoralis minor muscle is triangular in shape & is located under the pectoralis major, & both formed the anterior wall of the axilla. The pectoralis minor muscle is one of the most surfaced muscles on the anterior aspect of the chest or thoracic wall, situated deeply only to the pectoralis major muscle. It is…
