Unit 6 Muscular System Test

Front

What is the role of calcium ions in muscle contraction?

Back

Calcium ions bind to regulatory proteins on the actin filaments, allowing myosin to bind to actin.

Front

What is the main function of the muscular system?

Back

The main function of the muscular system is movement.

Front

What is the primary function of skeletal muscle?

Back

The primary function of skeletal muscle is facilitating movement.

Front

What is the structure and function of muscle tissue?

Back

Muscle tissue is composed of fibers that contract to produce movement.

Front

What are prime movers (agonists) in muscle classification?

Back

Prime movers (agonists) are muscles most responsible for producing a certain movement.

Front

What are antagonistic muscles?

Back

Antagonistic muscles are muscles that oppose a movement.

Front

What is the difference between voluntary and involuntary muscles?

Back

Voluntary muscles are controlled consciously, while involuntary muscles are not under conscious control.

Front

What is the role of myosin in muscle contraction?

Back

Myosin is a protein that interacts with actin to produce 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.

Front

What is the function of tendons?

Back

Tendons connect muscles to bones, facilitating movement.