Muscular System IP

Which type of muscle controls our digestive system?

• smooth

• cardiac

• digestive

• skeletal

Which muscle type is primarily involved in controlling the heartbeat?

• smooth

• cardiac

• digestive

• skeletal

What is the purpose of tendons?

• attach to our internal organs to control breathing and heartbeat

• connect nerves to muscles

• connect muscles to organs

• attach the muscle to bones and allow for movement

What is the role of fascia in the muscular system?

• It secretes enzymes that break down muscle tissue.

• It surrounds and connects muscles to help reduce friction.

• It stores excess nutrients for muscle energy.

• It acts as the primary contraction initiator.

Muscle fibers are known to have specific properties that allow for movement. Which property allows muscles to return to their original shape after stretching?

• contractibility

• adaptability

• elasticity

• extensibility

What does the term "maximus" indicate about a muscle when it appears in its name?

• The muscle is the smallest of a group.

• The muscle is the largest of a group.

• The muscle has the most endurance.

• The muscle is the most used.

Which of the following are the main functions of the muscular system? Select ALL that apply.

• generating body heat through muscle contractions

• producing movement by contracting and relaxing in response to voluntary and involuntary signals

• assisting in the digestion of food by grinding and mixing stomach contents

• transmitting nerve signals to the brain

• stabilizing joints and helping maintain posture

Read the following scenarios and select ALL that describe involuntary muscle movements.

• blinking rapidly when a foreign object approaches the eye

• stomach churning during the digestive process

• deciding to wave at a friend across the street

• heart beating faster during a sprint

• shivering when exposed to cold temperatures

Which explanation best supports your choice above?

• The origin of a muscle is typically located on the more movable part of the skeleton, and it moves during muscle contraction.

• The origin of a muscle remains fixed during contraction, and the insertion moves to create movement.

• Muscle contraction results in the movement of the origin towards the insertion.

• Both the origin and the insertion of a muscle move equally during contraction.

Which type of muscle tissue is a voluntary muscle?

• Skeletal muscle

• Smooth muscle

• Cardiac muscle

• None of the above