MAPS - Bellringer - Intro to Muscle System

Where is smooth muscle tissue primarily found in the body?

• In the heart

• In the walls of hollow visceral organs

• Attached to bones

• In the brain

What is the primary function of cardiac muscle tissue?

• To move bones

• To push fluids through hollow organs

• To pump blood

• To digest food

Which type of muscle tissue is voluntary?

• Smooth muscle

• Cardiac muscle

• Skeletal muscle

• All of the above

What is the structural unit of a skeletal muscle?

• Myofibril

• Fascicle

• Sarcolemma

• Muscle fiber

What is the role of connective tissue in muscles?

• To contract and relax

• To provide energy

• To act as protective reinforcements

• To pump blood

Which of the following is NOT a characteristic of skeletal muscle fibers?

• They have multiple nuclei

• They are involuntary

• They are striated

• They have a sarcolemma

What is the function of the somatic nervous system in relation to skeletal muscles?

• To involuntarily control muscle contractions

• To supply blood to muscles

• To voluntarily control muscle contractions

• To provide nutrients to muscles

Which of the following is an example of a skeletal muscle?

• Myocardium

• Biceps brachii

• Intestinal wall

• Diaphragm

What is the cellular membrane of a muscle fiber called?

• Myofibril

• Sarcolemma

• Fascicle

• Endomysium

How are muscle fibers organized within a skeletal muscle?

• In a single continuous strand

• In a network of interconnected cells

• In bundles called fascicles

• In layers of connective tissue