Yes, in striated muscle you can think of the "A" bands as the dArk bands and the "I" bands as the lIght bands.
Earthworm have narrow bands of circular muscle fibers around their bodies and longitudinal muscles that control the length of their bodies located inside the circular muscles. These two sets of muscles, which are attached to the bristle-like setae on the outside of the body, work together to change the length and thickness of the worm so it can move.
Yes, smooth muscle has alternating dark and light bands known as the A and I bands, respectively.
Visible bands in cardiac and skeletal muscle are called striated muscles.
thick and thin bands (lines) of filaments.
Striated muscle.
In striated muscle fibers, light bands (I bands) are formed by the protein actin, while dark bands (A bands) are formed by the protein myosin. These proteins play a crucial role in the sliding filament theory of muscle contraction.
A and I bands
These rings of muscle are not only found either end of the stomach, but also at the base of the bladder. They are called sphincters. The lower sphincter in the stomach is specifically known as the pyloric sphincter, but I regret to say I do not know the exact names given to other sphincters.
Using 3x resistance bands for strength training and muscle building offers benefits such as increased resistance, improved muscle activation, and versatility in exercises. These bands can help enhance muscle strength, endurance, and flexibility, making workouts more effective and challenging.
The dark bands in skeletal muscle that contribute to its striated appearance are called A bands. These bands contain thick myosin filaments that overlap with thin actin filaments, creating the striations seen under a microscope. The arrangement and alignment of these filaments are critical for muscle contraction and force generation.
If it is spindle shaped, it is smooth (visceral) muscle tissue. If it is H or Y-shaped then it is cardiac muscle tissue. And, if it is rod shaped and has multiple nuclei, then it is skeletal muscle tissue. Another characteristic of both cardiac and muscle tissue is that it is striated with darker and lighter bands.