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 mixed cerebral palsy? Mixed cerebral palsy happens when a child exhibits symptoms of more than one type of cerebral palsy. Children diagnosed with mixed type cerebral palsy have sustained an injury to the motor control centers in several parts of the brain. A child’s impairments can fall into both categories, spastic and non-spastic,…
The knee joint with muscles plays an important role in the functioning of knee movement, such as quadriceps, Hamstring are the main muscles of knee joint which helps to perform day-to-day activity like walking, sitting to stand, running, and stair climbing. What is the knee joint? A knee joint is a synovial joint that connects…
Definition The locking and unlocking mechanism is also known as a “Screw home mechanism (SHM)” of the knee joint is a critical mechanism that plays an important role in the terminal extension of a knee. Description of the knee joint mechanism There is the observable rotation of a knee during flexion as well as extension….
What is Teres Major Muscle? The teres major is a broad muscle of the shoulder joint. It starts from the inferior aspect of the scapula to the proximal part of the humeral shaft. Unlike the teres minor, the teres major muscle will not attach to the glenohumeral joint capsule. Thus it is not considered as part of the rotator cuff muscles….
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…
