ESS : Muscle Groups and Functions

Can skeletal muscles be consciously controlled?

• Yes, they can be consciously controlled.

• No, they cannot be controlled at all.

• They can only be controlled during sleep.

• They can be controlled involuntarily.

Where are visceral muscles found?

• In the walls of internal organs such as blood vessels, stomach, and gut.

• In the skeletal system for voluntary movement.

• In the heart to pump blood.

• In the skin for protection.

What is an antagonist muscle?

• The muscle that contracts to create movement in a joint.

• The muscle that relaxes to allow movement in a joint when the agonist muscle contracts.

• The muscle that stabilizes a joint during movement.

• The muscle that opposes the action of the agonist muscle.

What is the function of skeletal muscles?

• They help move the body by contracting.

• They store energy for later use.

• They protect internal organs from injury.

• They produce hormones for growth.

What is an agonist muscle?

• The muscle that relaxes during a movement.

• The muscle that contracts to bring about a movement.

• The muscle that stabilizes a joint during movement.

• The muscle that opposes the action of another muscle.

What is an isometric contraction?

• A muscle contraction that shortens the muscle and produces movement.

• A muscle contraction that lengthens the muscle and produces movement.

• A muscle contraction without lengthening or shortening, resulting in no movement.

• A muscle contraction that occurs only during relaxation.

What is the origin of a muscle?

• The point where the muscle joins the fixed bone.

• The point where the muscle attaches to the moving bone.

• The location where the muscle is innervated by nerves.

• The area where the muscle fibers are most densely packed.

What happens when cardiac muscles contract?

• They pump blood out of the heart and around the body.

• They relax and allow blood to fill the heart.

• They increase the heart rate without pumping blood.

• They cause the heart to stop beating.

Can visceral muscles be consciously controlled?

• Yes, they can be consciously controlled.

• No, they cannot be consciously controlled.

• Only during intense physical activity.

• Only in certain medical conditions.

Do cardiac muscles tire?

• Yes, they tire quickly.

• Yes, but only during intense exercise.

• No, they work non-stop without tiring.

• Yes, but they recover quickly.