Introduction The thorax muscles are a group of muscles located in the chest region that play a key role in respiration and upper body movement. The thoracic wall comprises the subcostalis, transversus thoracis, innermost intercostal muscles, external intercostal muscles, and internal intercostal muscles. During breathing, these muscles are principally in charge of altering the thoracic…
Introduction The transversus thoracis is a thin, flat muscle on the inner surface of the front chest wall. It extends from the lower sternum and xiphoid process to the inner surfaces of ribs 2–6. Its main function is to assist in forced expiration by helping to depress the ribs, thereby reducing the volume of the…
Introduction The Levatores Costarum (Latin for “lifters of the ribs”) are small, deep muscles of the back that assist with breathing and spinal movement. Twelve tiny triangle muscles make up the levatores costarum, which connect the thoracic vertebrae to the nearby ribs. They extend from C7 to T12 levels in the thoracic area and are…
Introduction The pronator quadratus is a quadrangular, thin, short, and flat muscle located in the anterior compartment of the forearm. It is a member of the deep group of forearm flexors, together with flexor digitorum profundus and pollicis longus. The superficial group of forearm flexors overlays these three muscles. The pronator quadratus connects the distal…
Anatomy of Gastrocnemius Muscle The gastrocnemius is a large, two-headed muscle in the calf that forms the bulk of its shape. It originates from the femur and inserts into the Achilles tendon, working with the soleus muscle to enable plantar flexion of the foot and assist in knee flexion. It plays a crucial role in…
The palmar aponeurosis is a thick, triangular layer of connective tissue located in the palm of the hand. It functions to protect underlying structures, provide support to the hand, and aid in grip by connecting the palmar skin to the deeper tissues. The aponeurosis extends from the flexor retinaculum to the bases of the fingers,…
Bicipital Tendonitis: What is it? Bicipital Tendonitis is caused by inflammation in the tendon of the upper biceps. This tendon, sometimes called the long head of the biceps tendon, joins the shoulder blade bone to the biceps muscle. Your elbow may also develop the problem. This overuse injury, also known as tendinitis, is frequently caused…
Triceps Tendonitis: What is it? Triceps tendonitis, also known as tricep tendinitis, is characterized by inflammation and irritation of the triceps tendon. The triceps tendon is a thick band of connective tissue that connects the triceps muscle on the back of the upper arm to the olecranon, which is the bony prominence at the tip…
What is an Intercostal Muscle Strain? Intercostal muscle strain refers to overstretch in the muscles located between the ribs. These muscles assist in breathing and torso movement. Pain can result from overuse, injury, poor posture, or conditions like inflammation or nerve irritation. Symptoms often include sharp or aching pain, worsened by movement or deep breathing….
Deep Core Muscles: What Are They? The deep core muscles are a group of stabilizing muscles that support the spine, pelvis, and abdomen. They include the transversus abdominis, multifidus, diaphragm, and pelvic floor muscles. These muscles work together to provide stability, improve posture, and reduce the risk of injury, especially in movements requiring balance and…
