Want this question answered?
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, in striated muscle you can think of the "A" bands as the dArk bands and the "I" bands as the lIght bands.
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.
Striated muscle.
thick and thin bands (lines) of filaments.
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.
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.
anisotropic are the bright bands in the muscle tissue while isotropic are the dark bands when view under polarised light.
thick and thin bands (lines) of filaments.
Neuromuscular massage usually involves treatment to trigger points, which are located in taut bands of muscle fiber bundles. The therapy usually involves the use of ischemic pressure applied to the trigger point so that it releases its tension by resetting the muscle spindles that promote muscle contraction.