In the following electron micrograph of the sarcomere correctly identify the area labeled as “E”?
Ans: B. I-band
- Area marked, as ‘E’ is lighter & isotropic band = I-band.
- Dark Z-line at its center.
- Light I band divided by dark Z line & dark A band.
- Has lighter H band in its center.
- M line – Transverse line seen in middle of H hand.
- Sarcomere – Area between two adjacent Z lines.
- (A: A-band ; B: Actin filaments; C: Sarcomere width; D: H-zone).