Results for "**Physical therapy**"
Anatomy Encyclopedia Entry 1776956344
** The **Pectoralis Major** is a large, fan-shaped muscle in the chest that plays a crucial role in movements of the shoulder joint and upper limb. ## Overview The **Pectoralis Major** is one of the largest muscles in the human body, covering the front of the chest and extending from the breastbone (sternum) to the armpit. This muscle is responsible for movements of the shoulder joint, including flexion (lifting the arm forward), extension (lifting the arm backward), and rotation (rotating the arm inward or outward). The **Pectoralis Major** is a vital component of the muscular system, enabling us to perform various daily activities, such as throwing, lifting, and pushing. The **Pectoralis Major** is divided into two parts: the **Clavicular Head** (upper part) and the **Sternal Head** (lower part). These two heads are connected by a fibrous band, known as the **pectoralis major tendon**. The muscle has a rich blood supply, with several arteries and veins that provide oxygen and nutrients to the muscle tissue. ## History/Background The study of human anatomy dates back to ancient civilizations, with the Egyptians, Greeks, and Romans making significant contributions to the field. The **Pectoralis Major** was first described by the Greek physician **Galen** (129-216 AD), who wrote extensively on human anatomy and physiology. In the 16th century, the Italian anatomist **Andreas Vesalius** (1514-1564) published a comprehensive textbook on human anatomy, which included detailed descriptions of the **Pectoralis Major**. ## Key Information The **Pectoralis Major** is a complex muscle with several key features: * **Origin**: The muscle originates from the **sternum**, **clavicle**, and **ribs**. * **Insertion**: The muscle inserts into the **humerus** (upper arm bone) via the **pectoralis major tendon**. * **Innervation**: The muscle is innervated by the **lateral pectoral nerve** and the **medial pectoral nerve**. * **Blood Supply**: The muscle receives blood from the **pectoral branches of the thoracoacromial artery** and the **anterior thoracic artery**. ## Significance The **Pectoralis Major** plays a vital role in various aspects of human life, including: * **Movement**: The muscle enables movements of the shoulder joint, allowing us to perform daily activities, such as throwing, lifting, and pushing. * **Sports**: The **Pectoralis Major** is essential for athletes who engage in sports that require throwing, lifting, or pushing, such as baseball, football, and weightlifting. * **Rehabilitation**: The muscle is often targeted in physical therapy programs to improve shoulder mobility and strength. INFOBOX: - Name: **Pectoralis Major** - Type: **Muscle** - Date: **Ancient civilizations** (first described by Galen in 129-216 AD) - Location: **Chest** - Known For: **Movement of the shoulder joint** TAGS: **Anatomy**, **Muscle**, **Shoulder joint**, **Movement**, **Sports**, **Rehabilitation**, **Physical therapy**, **Galen**, **Andreas Vesalius**
Health & MedicineConditions Encyclopedia Entry 1780891145
** This entry is about a rare and complex medical condition known as **Ehlers-Danlos Syndrome (EDS)**, a group of genetic disorders that affect the body's connective tissue. ## Overview Ehlers-Danlos Syndrome (EDS) is a rare and chronic condition that affects the body's connective tissue, which provides support and structure to various organs, joints, and other body parts. The condition is characterized by extremely flexible joints, skin hyperextensibility, and tissue fragility. People with EDS may experience a range of symptoms, from mild to severe, and may be at risk for various complications, including joint dislocations, organ rupture, and cardiovascular problems. EDS is a genetic disorder, meaning it is inherited from one's parents. The condition is caused by mutations in genes that code for proteins responsible for producing collagen, a key component of connective tissue. There are 13 subtypes of EDS, each with distinct characteristics and symptoms. While the exact prevalence of EDS is unknown, it is estimated to affect approximately 1 in 5,000 to 1 in 20,000 people worldwide. ## History/Background The first reported case of EDS was in 1901 by a Dutch dermatologist named Eduard Ehlers, who described a patient with extremely flexible joints and skin hyperextensibility. In 1933, an American dermatologist named Henri-Alexandre Danlos expanded on Ehlers' findings and described the condition in more detail. Since then, numerous researchers have studied EDS, leading to a better understanding of the condition and its various subtypes. ## Key Information * **Symptoms:** People with EDS may experience a range of symptoms, including: + Extremely flexible joints + Skin hyperextensibility + Tissue fragility + Joint dislocations + Organ rupture + Cardiovascular problems + Gastrointestinal problems + Eye problems + Hearing loss * **Subtypes:** There are 13 subtypes of EDS, each with distinct characteristics and symptoms. The most common subtypes are: + Classical EDS (cEDS) + Hypermobile EDS (hEDS) + Vascular EDS (vEDS) + Kyphoscoliotic EDS (kEDS) * **Genetics:** EDS is a genetic disorder, meaning it is inherited from one's parents. The condition is caused by mutations in genes that code for proteins responsible for producing collagen. * **Diagnosis:** Diagnosis of EDS is based on a combination of clinical evaluation, medical history, and genetic testing. * **Treatment:** There is no cure for EDS, but various treatments can help manage symptoms and prevent complications. These may include: + Physical therapy + Occupational therapy + Pain management + Surgery + Genetic counseling ## Significance EDS is a rare and complex condition that affects people of all ages and backgrounds. While the exact prevalence of EDS is unknown, it is estimated to affect approximately 1 in 5,000 to 1 in 20,000 people worldwide. EDS can have a significant impact on a person's quality of life, causing chronic pain, disability, and emotional distress. However, with proper diagnosis and treatment, people with EDS can manage their symptoms and lead active and fulfilling lives. INFOBOX: - **Name:** Ehlers-Danlos Syndrome (EDS) - **Type:** Genetic disorder - **Date:** 1901 (first reported case) - **Location:** Worldwide - **Known For:** Rare and complex condition affecting connective tissue TAGS: **Ehlers-Danlos Syndrome**, **Genetic disorder**, **Connective tissue**, **Rare condition**, **Chronic pain**, **Disability**, **Genetic counseling**, **Physical therapy**, **Occupational therapy**, **Pain management**, **Surgery**