Muscular System Flashcards
(12 cards)
What are the three main types of muscles in the muscular system?
Skeletal, smooth, and cardiac
Where are skeletal muscles located and what is their function?
Attached to bones, responsible for movement
Where are smooth muscles found?
In organs such as the stomach and intestines
What is the function of cardiac muscle and where is it found?
Pumps blood, found only in the heart
What are the main functions of the muscular system?
• Movement
• Posture
• Heat production
• Breathing and circulation
(e.g., diaphragm and heart)
What is muscular dystrophy?
A hereditary condition causing gradual muscle weakness and atrophy
What is myopathy?
A disorder affecting skeletal muscles, causing weakness and dysfunction
What is myasthenia gravis?
An autoimmune disease where antibodies block receptors at neuromuscular junctions, preventing muscle contractions
How does active living benefit the muscular system?
• Strengthens muscles and bones
• Improves coordination, balance, and endurance
• Reduces injury risk
How does muscle strength impact teen well-being?
• Increases bone density and muscle mass
• Improves mental health (mood, confidence, reduced stress)
• Prevents injury and helps with weight management
What happens to muscles during growth spurts?
Muscles struggle to keep up with bone growth, causing tightness, less flexibility, and higher injury risk
Why are warm-ups and cool-downs important?
• Warm-ups increase blood flow, flexibility, and prep muscles
• Cool-downs remove lactic acid and reduce soreness
