Video from Siebert Science on YouTube
4.6.2 Describe the sarcomere and its bands, the T-tubule and sarcoplasmic reticulum, and the intercalated disc.
The part on this line: 1:24–7:04
Why this video
It breaks down the structural organization of the sarcomere step by step, illustrating the arrangement of actin and myosin filaments and how they form the A band, I band, H zone, M line, and Z disc.
Part of this line
Covers part of this objective. It leaves out: It does not cover T-tubules, the sarcoplasmic reticulum, or cardiac intercalated discs.
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