Definition

A thin layer that surrounds and protects a muscle fiber, helping it function properly.

Example

The sarcolemma plays a crucial role in muscle contraction by regulating the entry and exit of ions.

Conversation

I was reading about muscle fibers and came across the term sarcolemma.

Oh really? What does that mean?

It's the thin membrane that encloses a striated muscle fiber.

That sounds interesting! I didn't know muscles had such specific parts.

Synonyms & Antonyms

Root Explanation

**Sarcolemma** → It is formed from "sarc-" (from Greek "sarkos", meaning flesh) and "lemma" (from Greek "lemma", meaning sheath or covering). The word "sarcolemma" refers to the sheath that surrounds muscle fibers, essentially a covering of flesh.

Memory Tip

Think of 'flesh' ('sarc-') being covered by a 'sheath' ('lemma') — that's what sarcolemma means.

Visually Confused Words