Notes on Muscular System Diseases and Inter-system Relationships

Tendinitis
- Inflammation of a tendon.
- Often caused by repetitive movement, particularly in areas like the wrist (carpal ligament).
Atrophy
- A wasting away of muscle tissue.
Carpal Tunnel Syndrome
- Inflammation of tendons under the carpal ligament.
Compartment Syndrome
- Inflammation of muscles within a compartment due to overactivity or trauma.
Cramps
- A painful muscle spasm often occurring unexpectedly.
Fibromyalgia
- A condition characterized by myalgia (muscle pain), fatigue, sleep issues, and tenderness.
Hernias
- Protrusion of the viscera through the muscular wall.
Muscle Strain
- A tear in muscle tissue or tendons, usually due to overexertion.
Muscular Dystrophy
- A group of genetic disorders leading to progressive weakening and degeneration of muscle tissue, often replaced with fibrous scar tissue.
Myalgia
- General muscle pain.
Myasthenia Gravis
- An autoimmune disorder that affects the transmission of signals from nerves to muscles, inhibiting muscle contraction.
Shin Splints
- Pain along the tibia (shin bone) often due to physical activity increase.
Sprain
- A stretch or tear in a ligament.

Integumentary System
- Radiates excess heat generated by muscles.
- Vitamin D production supports calcium absorption necessary for muscle contractions.
- Arrector pili muscles help regulate temperature by moving hair.
Skeletal System
- Provides calcium needed for muscle contractions.
- Works with bones to facilitate body movement through lever systems, assisting in bone growth via applied stress.
Nervous System
- Stimulates muscle contractions.
- Initiates movements controlled by the central nervous system.
Endocrine System
- Hormones help regulate blood calcium and glucose levels critical for muscle contractions.
Cardiovascular System
- Supplies nutrients and removes waste products from muscular activity.
- Facilitates blood flow through veins back to the heart.
Lymphatic System
- Transports white blood cells to combat pathogens affecting muscle health.
- Returns lymph to the cardiovascular system.
Respiratory System
- Delivers O2 to muscle tissues and expels CO2 produced from aerobic respiration, with skeletal muscles aiding in breathing.
Digestive System
- Provides essential nutrients for muscle tissue.
- Uses skeletal muscles for chewing and swallowing.
Excretory/Urinary System
- Maintains electrolyte balance essential for muscle function; kidneys dispose of metabolic wastes.
Reproductive System
- Reproductive hormones enhance muscle growth and overall development.
- Muscle contractions are involved in childbirth and ejaculation processes.