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….
When you feel pain in the lower back during muscle contracting or moving, it is indicated as a muscle spasm in the lower back.This spasm is produce dull ache-like pain during movement, also the feeling of sharp pain in a specific location & any combination of these painful sensations. This spasm is produced due to…
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…
Lower Back pain is a most commonly seen painful condition affecting the lower lumbo-sacral portion of the spine. The low back also called the lumbar region which is the area of the back that starts below the ribcage. Almost everyone feels low back pain at some point in life.It becomes too uncomfortable & debilitating for…
What is Pectoralis Minor Muscle? Relations of Pectoralis Minor Muscle Origin of Pectoralis Minor Muscle Insertion Nerve supply Blood supply Action: The action of pectoralis minor is to: The function of Pectoralis Minor Muscle Clinical significance of Pectoralis Minor Muscle Stretching Exercise of Pectoralis Minor Muscle Gross Stretch: Doorway Pectoral Stretch: Camel Pose Stretch: Hand…
What is Infraspinatus Muscle? The infraspinatus is a broad triangular muscle that takes the majority of the dorsal surface of the scapula. It arises mostly from the infraspinous fossa of the scapula,& joins it to the proximal humerus. The infraspinatus is one of the 4 rotator cuff muscles, alongside subscapularis, teres minor & supraspinatus muscles. As a portion of the rotator…
What is Subscapularis Muscle ? The subscapularis is a triangular shoulder muscle situated in the subscapular fossa of the scapula. Attaching between the scapula & the proximal humerus, it is one of the 4 muscles of the rotator cuff, along with supraspinatus, infraspinatus, & teres minor. Rotator cuff muscles act to combine work for stabilization & steer the humeral head within the glenoid cavity during…
What is Supraspinatus Muscle? Supraspinatus is 1 of the rotator cuff muscles, along with infraspinatus, teres minor & subscapularis muscles. Supraspinatus is situated deeply to the trapezius muscle in the posterior scapular region, extending from the supraspinous fossa of the scapula to the proximal humerus. Together with the other rotator cuff muscles, supraspinatus work as a stabilization of the glenohumeral (shoulder) joint during the movements of the upper extremity. Additionally, it…
What is a Gracilis Muscle? The gracilis muscle is a long, thin muscle that runs along the inner thigh. It originates from the pubic bone and inserts into the tibia bone, just below the knee joint. The gracilis muscle is part of the medial compartment of the thigh muscles, along with the adductor muscles. It…
