Choose the correct option to label the following parts
1.Thin filament 2.Thick filament 3.Sarcomere
1.Thick filament 2.Thin filament 3.Sarcomere
1.Sarcomere 2.Thick filament 3.Thin filament
1.Sarcomere 2.Thin filament 3.Thick filament
The H-Zone in the skeletal muscle fibre is due to ________
Extension of myofibrils in the central portion of A-band.
The absence of myofibrils in the central portion of A-band.
The central gap between myosin filaments in the A-band.
Central gap between actin filaments extending through myosin filaments in the A-band.
The region made of thin filaments is _______ .
Thick and thin filaments form the (i)__________. The thick and thin filaments overlap and form a definite pattern that form repeating units called (ii)______.
Sarcomere and Myofibrils
Myofibrils and sarcomere
Fascia and fascicle
Fascicle and Fascia
Identify different regions in the structure of myofibril
1.Z disc 2.H Zone 3.M Line 4.I band 5.A band
1.Z disc 2.A Band 3.M line 4.H zone 5.I band
1.Z disc 2.H Zone 3.M Line 4.A band 5.I Band
1.Z disc 2. M line 3. H zone 4.A band 5.I band
Sarcomere is the smallest contractile unit in a muscle fibre which is limited by the area between
A, H, and I bands
2 A bands
Actin filaments and myosin filaments
2 Z bands
- I – band
- A – band
- Z – line
- H – zone
- Ilium, ischium, pubis → bones of pectoral girdle
- Malleus, incus, cochlea → ear ossicles
- Actin, myosin, rhodopsin → sarcomere
- Cytosine, thymine, uracil → pyramidines
- Z – disc
- T – system
- Neuromuscular junction
- I band
- Z band