For Phantom Limb Syndrome please describe the symptoms and t

For Phantom Limb Syndrome, please describe the symptoms and the part of the brain affected explicitly, and the cure. How do sea stars\' cat? Describe the Water Vascular System in Sea Stars (WVS). What is its structure? How does the water get into the WVS? How does it control the tube feet? Besides moving the tube feet, what does the WVS do?

Solution

1) Phantom limb syndrome is a condition or a sensation in which the cut or missed limb is being still attached with the person\'s body. It can also be caused due to removal of the body parts due to the certain reasons.. It affects the brain nerve ending called Neuromas..!!

The symptoms include limb pain in some cases, gesturing, feeling itchiness, and most important is the feeling of one hand small and long which can bring to severe pain..!!

Some of the cure way of this is meditation, acupuncture, anti-depressants, spinal cord stimulation..!! Some chemicals like morphine could also be a used...

3) water vascular system is a hydraulic water system present in echinodermata like sea stars.. It help in food, water movement, locomotion, waste transportation and even respiration too..

They are composed of canals which connects to tube feet . it moves by contacting muscles present in them which forces the water inside it resulting in extending, pushing on to the ground and again retracing..

The structure of it is like it has a sieve like structure which is connected to central duct called amphula. This amphula is connected to another duct called stone canal. This canal runs as a ambulagrel grooves on each arm of the sea star underside..!! This gives its appearance like a tube foot.

The contraction of the amphulle cause podia to stretch water inside which allows for the movement..!!