Muscular System Test

Front

________ are the muscle cells, containing specialized organelles called ________.

Back

muscle fibers; myofilaments

Front

The endomysium is the connective tissue that surrounds each:

Back

muscle fiber

Front

List the following terms related to the structure of skeletal muscle from largest to smallest: fascicle, myofibril, myofilament, muscle, muscle fiber.

Back

Muscle, fascicle, muscle fiber, myofibril, myofilament

Front

Organs are made of two or more tissues working together for a common function. Every muscle is considered an organ. List the tissues that compose most muscles. Then, list two common functions of muscles.

Back

Tissues: Muscle tissue, connective tissue, nervous tissue, blood vessels. Functions: Movement, posture, heat production.

Front

The process of muscle contraction involves:

Back

The sliding of actin and myosin filaments past each other

Front

What is the role of acetylcholine at the neuromuscular junction?

Back

It stimulates muscle contraction by triggering an action potential in the muscle fiber.

Front

What is the basic unit of muscle structure?

Back

Sarcomere

Front

What is the process called when a muscle shortens and generates force?

Back

muscle contraction

Front

Which proteins are responsible for muscle contraction?

Back

Actin and myosin

Front

The image shows...

Back

The neuromuscular junction