Question

multiple choice question

what is fascia?

• the plasma membrane of a muscle cell
• a connective tissue sheath encircling an individual muscle fascicle
• a thin sleeve of connective tissue surrounding an individual muscle fiber
• a thick sheet of connective tissue separating neighboring groups of muscles

Explanation:

Define the structural layers of muscle connective tissue

To identify the correct definition of fascia, we must distinguish it from other connective tissue layers associated with skeletal muscle:

• The plasma membrane of a muscle cell is the sarcolemma.
• A thin sleeve of connective tissue surrounding an individual muscle fiber is the endomysium.
• A connective tissue sheath encircling an individual muscle fascicle is the perimysium.
• A thick sheet of connective tissue separating neighboring groups of muscles, or separating muscle from subcutaneous tissue, is the fascia (deep fascia).

Evaluate the given multiple-choice options

• Option 1: "The plasma membrane of a muscle cell" describes the sarcolemma, not fascia.
• Option 2: "A connective tissue sheath encircling an individual muscle fascicle" describes the perimysium.
• Option 3: "A thin sleeve of connective tissue surrounding an individual muscle fiber" describes the endomysium.
• Option 4: "A thick sheet of connective tissue separating neighboring groups of muscles" accurately describes deep fascia, which groups functional muscles together and separates them from other compartments.

Answer:

• The plasma membrane of a muscle cell
• A connective tissue sheath encircling an individual muscle fascicle
• A thin sleeve of connective tissue surrounding an individual muscle fiber
• A thick sheet of connective tissue separating neighboring groups of muscles (Correct answer)