The median nerve is a major nerve of the upper limb, originating from the brachial plexus (C5-T1). It runs down the arm, forearm, and into the hand, providing motor innervation to most forearm flexor muscles and some hand muscles, and sensory innervation to the lateral palm, thumb, index, middle, and half of the ring finger….
The metatarsophalangeal (MTP) joints are the connections between the metatarsal bones of the foot and the proximal phalanges of the toes. These joints play a crucial role in weight-bearing, balance, and movement, especially during walking, running, and jumping. Dorsal collateral ligaments and extensor tendons strengthen the joint capsule surrounding these synovial joints. The first MTP…
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…
Introduction Costochondral joints are the cartilaginous connections between the ribs and the costal cartilage in the front of the ribcage. These joints provide flexibility and support for breathing movements. They are synchondroses, meaning they are immobile and composed of hyaline cartilage. Injuries or inflammation in these joints can lead to costochondritis, a common cause of…
The metacarpophalangeal (MCP) joints are the knuckle joints where the metacarpal bones of the hand meet the proximal phalanges of the fingers. These synovial joints allow flexion, extension, abduction, adduction, and limited rotation, enabling fine motor movements. They are supported by collateral ligaments, the volar plate, and the extensor hood, contributing to joint stability and…
Quadratus Lumborum Muscle Pain refers to discomfort or tightness in the deep lower back muscle that connects the spine to the pelvis. This pain is often caused by poor posture, prolonged sitting, heavy lifting, or muscle imbalances. It can lead to stiffness, aching, or sharp pain in the lower back, hips, and even the ribs….
What is a Vastus Lateralis Muscle Pain? The vastus lateralis is one of the four quadriceps muscles on the thigh’s outer side. It plays a crucial role in knee extension, walking, running, and stabilizing the leg during movement. Vastus lateralis muscle pain can arise from various factors such as overuse, strain, trauma, or nerve irritation….
The intercarpal joints are synovial plane joints located between the carpal bones of the wrist. They allow for small gliding movements, contributing to the flexibility and overall motion of the wrist. These joints are reinforced by ligaments, including the dorsal, palmar, and interosseous ligaments, which provide stability. The midcarpal joint, between the proximal and distal…
Introduction The Vastus Intermedius is one of the four muscles that make up the quadriceps femoris group in the anterior thigh. Located deep between the vastus lateralis and vastus medialis, it lies beneath the rectus femoris and plays a crucial role in knee extension. As a key component of the quadriceps, the vastus intermedius contributes…
What is a Popliteus Muscle Pain? Popliteus muscle pain refers to pain or injury affecting the popliteus muscle, a small but crucial muscle located at the back of the knee. This muscle plays a key role in knee stability and unlocking the knee joint during movement. Popliteus muscle injuries are rarely isolated; instead, they are…
