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In vertebrate animals that evolved to lose their tails (e.g. frogs and hominid primates), the coccyx is the homologous vestigial of the tail. While tails are primarily considered a feature of vertebrates, some invertebrates such as scorpions and springtails, as well as snails and slugs, have tail-like appendages that are also referred to as tails.
Residual limb pain, also referred to as stump pain, is a painful perception that originates from the residual limb, or stump, itself. [2] It is typically a manifestation of an underlying source, such as surgical trauma, neuroma formation, infection , or an improperly fitted prosthetic device . [ 5 ]
Limbs are attached to the torso via girdles, either the pectoral girdle for the forelimbs, or the pelvic girdle for the hindlimbs.In terrestrial tetrapods, the pectoral girdles are more mobile, floating over the rib cage connected only via the clavicles (to the sternum) and numerous muscles; while the pelvic girdles are typically fused together anteriorly via a fibrocartilaginous joint and ...
Pain in the coccyx can be caused from many incidents like falling, horseback riding, or even sitting on hard surfaces for a long period of time. The main focus is to prevent coccyx pain from occurring by correcting everyday activities that contribute to tailbone pain. Hot or cold water baths may help.
A white-headed dwarf gecko with tail lost due to autotomy. Autotomy (from the Greek auto-, "self-" and tome, "severing", αὐτοτομία) or 'self-amputation', is the behaviour whereby an animal sheds or discards an appendage, [1] usually as a self-defense mechanism to elude a predator's grasp or to distract the predator and thereby allow escape.
There are a number of symptoms associated with monoplegia. Curling of the hands or stiffness of the feet, weakness, spasticity, numbness, paralysis, pain in the affected limb, headaches, and shoulder pain are all considered to be symptoms of monoplegia. Patients of monoplegia typically feel symptoms of weakness and loss of sensation in the ...
Autotomy serves either to improve the chances of escape or to reduce further damage occurring to the remainder of the animal such as the spread of a chemical toxin after being stung, but the 'decision' to shed a limb or part of a body and the considerable costs incurred by this suggests a pain response rather than simply a nociceptive reflex.
Phantom limb pain is a type of tactile hallucination because it creates a sensation of excruciating pain in a limb that has been amputated. [11] In 1996, VS Ramachandran conducted a research on several amputees to pinpoint the neural reasons behind these illusionary pains.