The correct answer is b) endomysium.
The endomysium is a thin layer of connective tissue that surrounds each individual muscle fiber, or muscle cell. It provides structural support and helps to protect the muscle cells as well as providing a pathway for nerves and blood vessels to reach the fibers.
On the other hand:
- a) perimysium surrounds bundles of muscle fibers, known as fascicles.
- c) epimysium is the outer layer of connective tissue that surrounds the entire muscle.
- d) fascicle refers to a bundle of muscle fibers.
In summary, if you’re looking for the connective tissue that directly envelops each muscle cell, that would undoubtedly be the endomysium.