Unit 5 Test #2

Front

What type of muscle makes up the walls of our internal organs?

Back

Smooth muscles are involuntary muscles that control the movement of internal organs.

Front

What is the shape of spindle-shaped skeletal muscles?

Back

Spindle-shaped muscles are tapered at both ends and are typically found in the limbs.

Front

What is the function of the zygomaticus muscle?

Back

The zygomaticus muscle is responsible for smiling and elevating the corners of the mouth.

Front

What is the role of the Vastus Lateralis muscle?

Back

The Vastus Lateralis is one of the quadriceps muscles and is responsible for extending the knee.

Front

What type of muscle is cardiac muscle?

Back

Cardiac muscle is a type of involuntary muscle found only in the heart, responsible for pumping blood.

Front

Define skeletal muscle.

Back

Skeletal muscle is a type of striated muscle that is under voluntary control and is responsible for body movements.

Front

What are the characteristics of smooth muscle?

Back

Smooth muscle is non-striated, involuntary, and found in the walls of hollow organs.

Front

What is the primary function of cardiac muscle?

Back

The primary function of cardiac muscle is to contract and pump blood throughout the body.

Front

Identify the main difference between voluntary and involuntary muscles.

Back

Voluntary muscles are controlled consciously (e.g., skeletal muscles), while involuntary muscles operate automatically (e.g., smooth and cardiac muscles).

Front

What is the shape of flat muscles?

Back

Flat muscles are thin and broad, often covering a large area of the body.