Anatomy & Physiology Muscular System

Front

What is the primary function of the muscular system?

Back

The primary function of the muscular system is to facilitate movement of the body, maintain posture, and produce heat.

Front

What are the three types of muscles in the human body?

Back

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

Front

What is a tendon?

Back

A tendon is a fibrous connective tissue that connects muscle to bone.

Front

What is a ligament?

Back

A ligament is a fibrous connective tissue that connects bone to bone.

Front

What is the role of the hamstrings?

Back

The hamstrings are a group of muscles located at the back of the thigh that are responsible for bending the knee and extending the hip.

Front

What is the role of the quadriceps?

Back

The quadriceps are a group of muscles located at the front of the thigh that are responsible for extending the knee.

Front

What is the function of the gastrocnemius muscle?

Back

The gastrocnemius muscle is responsible for plantar flexion of the foot and flexion of the knee.

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., smooth and cardiac muscles).

Front

What is the sliding filament theory?

Back

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

Front

What is the role of actin in muscle contraction?

Back

Actin is a thin filament that interacts with myosin to facilitate muscle contraction.