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Flashcards on Muscular System
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What is the function of the muscular system?
The muscular system is responsible for movement, stability, and generating heat.
What are the three types of muscles in the body?
The three types of muscles are skeletal muscles, smooth muscles, and cardiac muscles.
Which type of muscle is responsible for involuntary movements?
Smooth muscles are responsible for involuntary movements.
What is the difference between flexion and extension?
Flexion is the bending of a joint, while extension is the straightening of a joint.
What is a muscle fiber?
A muscle fiber is a single muscle cell.
What is the largest muscle in the human body?
The largest muscle in the human body is the gluteus maximus.
What is muscle fatigue?
Muscle fatigue is when a muscle loses the ability to contract after prolonged use.
What are the two types of muscle contractions?
The two types of muscle contractions are concentric and eccentric.
What is the main energy source for muscle contractions?
The main energy source for muscle contractions is ATP, or adenosine triphosphate.
What is the difference between isotonic and isometric exercises?
Isotonic exercises involve movement and changes in muscle length, while isometric exercises involve no movement and no change in muscle length.
What is a muscle strain?
A muscle strain is a tear or damage to a muscle or its attaching tendons.
What is the role of calcium in muscle contractions?
Calcium is necessary for muscle contractions because it allows the actin and myosin filaments to slide past each other.
What is the difference between a parallel and pennate muscle?
Parallel muscles have fibers that run parallel to each other, while pennate muscles have fibers that run at angles to a central tendon.
What is the difference between a muscle spasm and a muscle cramp?
A muscle spasm is a sudden and involuntary contraction, while a muscle cramp is a prolonged or sustained contraction.
What is muscular dystrophy?
Muscular dystrophy is a genetic disorder that causes progressive weakness and wasting of the muscles.
What is the function of the muscular system?
The muscular system is responsible for movement, stability, and generating heat.
What are the three types of muscles in the body?
The three types of muscles are skeletal muscles, smooth muscles, and cardiac muscles.
Which type of muscle is responsible for involuntary movements?
Smooth muscles are responsible for involuntary movements.
What is the difference between flexion and extension?
Flexion is the bending of a joint, while extension is the straightening of a joint.
What is a muscle fiber?
A muscle fiber is a single muscle cell.
What is the largest muscle in the human body?
The largest muscle in the human body is the gluteus maximus.
What is muscle fatigue?
Muscle fatigue is when a muscle loses the ability to contract after prolonged use.
What are the two types of muscle contractions?
The two types of muscle contractions are concentric and eccentric.
What is the main energy source for muscle contractions?
The main energy source for muscle contractions is ATP, or adenosine triphosphate.
What is the difference between isotonic and isometric exercises?
Isotonic exercises involve movement and changes in muscle length, while isometric exercises involve no movement and no change in muscle length.
What is a muscle strain?
A muscle strain is a tear or damage to a muscle or its attaching tendons.
What is the role of calcium in muscle contractions?
Calcium is necessary for muscle contractions because it allows the actin and myosin filaments to slide past each other.
What is the difference between a parallel and pennate muscle?
Parallel muscles have fibers that run parallel to each other, while pennate muscles have fibers that run at angles to a central tendon.
What is the difference between a muscle spasm and a muscle cramp?
A muscle spasm is a sudden and involuntary contraction, while a muscle cramp is a prolonged or sustained contraction.
What is muscular dystrophy?
Muscular dystrophy is a genetic disorder that causes progressive weakness and wasting of the muscles.
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