Practice 1: Muscle Structure

Front

What is the outermost layer that wraps around a muscle?

Back

Epimysium

Front

What are the basic contractile units of a muscle fiber?

Back

Sarcomeres

Front

True or False: Skeletal muscles can attach to bones or skin in at least two places.

Back

True

Front

What are the protein filaments that make up a sarcomere?

Back

Myofilaments

Front

What is the connective tissue that surrounds individual muscle fibers?

Back

Endomysium

Front

What is the connective tissue that surrounds a bundle of muscle fibers?

Back

Perimysium

Front

What is the functional unit of a muscle that contracts?

Back

Sarcomere

Front

What type of muscle is responsible for voluntary movements?

Back

Skeletal muscle

Front

What is the term for the muscle cell?

Back

Myocyte

Front

What is the role of myofilaments in muscle contraction?

Back

They slide past each other to shorten the sarcomere.