Muscle Physiology

Front

What chemical helps to regenerate ATP?

Back

Creatine phosphate is a chemical that helps regenerate ATP in muscle cells.

Front

What are the three types of muscles?

Back

The three types of muscles are cardiac, smooth, and skeletal.

Front

What symptoms would a person have if they have a disease that inhibits the production of cholinesterase?

Back

Symptoms would include prolonged muscle contraction due to the inability to break down acetylcholine.

Front

What happens to the number of motor units being activated during recruitment?

Back

The number of motor units being activated increases during recruitment.

Front

How does botulinus toxin affect muscle contraction?

Back

Botulinus toxin prevents the release of acetylcholine, leading to muscle paralysis.

Front

Define muscle contraction.

Back

Muscle contraction is the process where muscle fibers shorten and generate force.

Front

What role does acetylcholine play in muscle contraction?

Back

Acetylcholine is a neurotransmitter that transmits signals from nerve cells to muscle cells, initiating contraction.

Front

What is the difference between voluntary and involuntary muscles?

Back

Voluntary muscles are under conscious control (e.g., skeletal muscles), while involuntary muscles operate without conscious control (e.g., cardiac and smooth muscles).

Front

What is the function of cholinesterase in muscle physiology?

Back

Cholinesterase breaks down acetylcholine in the synaptic cleft, stopping muscle contraction.

Front

What is the sliding filament theory?

Back

The sliding filament theory explains how muscles contract by the sliding of actin and myosin filaments past each other.