Module 2 - Muscles HW Flashcards
What is the definition of a muscle?
Muscle is a group of muscle cells with the same origin, insertion, and function.
What are the 3 main types of muscle?
The 3 main types of muscle are Skeletal muscle, Cardiac muscle, and Smooth muscle.
Which muscle is striated and voluntary?
Skeletal muscle is striated and voluntary.
Which muscle is found in the heart?
Cardiac muscle is found in the heart.
Which type of muscle has no striations?
Smooth muscle has no striations.
What are the thick filaments of muscle called?
The thick filaments of the muscle are called myosin.
What are the thin filaments of muscle called?
The thin filaments of the muscle are called actin.
What is the principle source of energy for muscles?
The principle source of energy for muscles is ATP.
Which muscle is the fastest?
Skeletal muscle is the fastest.
Why is exercise beneficial?
Exercise is beneficial because it increases blood flow and oxygen availability to the brain. Exercise also increases growth factors that promote new brain cells and neuronal pathways in the brain. Exercise increases levels of neurotransmitters which increases memory retention, information processing, and cognition.
What genetic disease causes muscle wasting and weakening?
Duchenne muscular dystrophy is a genetic disease that causes muscle wasting and weakening.
An infection of a deep wound by bacteria, Clostridium tetani can cause what disease?
Tetanus is a disease caused by an infection of a deep wound the bacteria, Clostridium tetani.
What causes muscle cramps?
Muscle cramps are caused by dehydration and ion imbalances.
