07 7-3 Muscular System Quiz

What are motor units responsible for?

• Pumping blood

• Performing movements in parts like the eyes or fingers

• Generating heat

• Supporting the skeletal system

What are muscle fibers?

• Short, thick cells

• Long, thin cells

• Round, flat cells

• Square, rigid cells

What type of movement is controlled consciously?

• Involuntary movement

• Voluntary movement

• Reflexive movement

• Automatic movement

Which part of the muscular system works with the skeletal system to create a lever?

• Motor units

• Blood circulation

• Lever system

• Heat generation

What is the function of smooth muscle in the stomach?

• It pumps blood

• It breaks down food

• It stores energy

• It produces hormones

What type of muscle is found only in the walls of the heart?

• Skeletal muscle

• Cardiac muscle

• Smooth muscle

• Rough muscle

What type of muscle is attached to bones?

• Cardiac muscle

• Smooth muscle

• Skeletal muscle

• Rough muscle

What is the function of skeletal muscle?

• To pump blood

• To move bones

• To digest food

• To produce hormones

What is the role of connective tissue in skeletal muscles?

• To produce energy

• To wrap and bundle muscle fibers

• To store fat

• To transport oxygen

What is the role of connective tissue in muscles?

• It causes muscle contraction.

• It supports and protects muscle cells.

• It generates energy for muscles.

• It stores nutrients for muscles.