Question

complete each sentence with the correct word to accurately describe the anatomy of a muscle fiber.

1. the connective tissue that surrounds each muscle fiber is called the (click to select).
2. the specific name for a muscle fibers plasma membrane is the (click to select).
3. each myofibril is made of up of several (click to select).
4. terminal cisterns are a structural feature of the organelle called the (click to select).
5. in a muscle fiber (click to select) adjacent to a terminal cistern, so the action potential channels.

t tubule
endomysium
myofilaments
perimysium
sarcolemma
sarcoplasm
sarcoplasmic reticulum

Explanation:

1. Endomysium is the connective - tissue around each muscle fiber.
2. Sarcolemma is the plasma membrane of a muscle fiber.
3. Myofibrils are made up of myofilaments.
4. Terminal cisterns are part of the sarcoplasmic reticulum.
5. T - tubules are adjacent to terminal cisterns in a muscle fiber.

Answer:

1. endomysium
2. sarcolemma
3. myofilaments
4. sarcoplasmic reticulum
5. T tubule