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Wallerian degeneration is an active process of degeneration that results when a nerve fiber is cut or crushed and the part of the axon distal to the injury (which in most cases is farther from the neuron 's cell body) degenerates. [ 1 ] A related process of dying back or retrograde degeneration known as 'Wallerian-like degeneration' occurs in ...
Augustus Volney Waller. Augustus Volney Waller. Augustus Volney Waller FRS (21 December 1816 – 18 September 1870) was a British neurophysiologist. He was the first to describe the degeneration of severed nerve fibers, now known as Wallerian degeneration.
Horse behavior is best understood from the view that horses are prey animals with a well-developed fight-or-flight response. Their first reaction to a threat is often to flee, although sometimes they stand their ground and defend themselves or their offspring in cases where flight is untenable, such as when a foal would be threatened. [1 ...
Equine-assisted psychotherapy (EAP) does not necessarily involve riding, but may include grooming, feeding and ground exercises. Mental health professionals work with one or more clients and one or more horses in an experiential manner to help the clients learn about themselves and others, while processing or discussing the client's feelings ...
A neurodegenerative disease is caused by the progressive loss of neurons, in the process known as neurodegeneration. [2][3] Neuronal damage may also ultimately result in their death. Neurodegenerative diseases include amyotrophic lateral sclerosis, multiple sclerosis, Parkinson's disease, Alzheimer's disease, Huntington's disease, multiple ...
Acquired brain injury (ABI), traumatic brain injury (TBI), focal or diffuse, primary and secondary. Brain injury (BI) is the destruction or degeneration of brain cells. Brain injuries occur due to a wide range of internal and external factors. In general, brain damage refers to significant, undiscriminating trauma-induced damage.
From anecdote to laboratory. [edit] See also: Comparative psychology. Speculation about animal intelligence gradually yielded to scientific study after Darwin placed humans and animals on a continuum, although Darwin's largely anecdotal approach to the cognition topic would not pass scientific muster later on. [ 12 ]
A horse cribbing on a wooden fence, note anti-cribbing collar intended to reduce this behavior and tension in neck muscles. Cribbing is a form of stereotypy (equine oral stereotypic behaviour), otherwise known as wind sucking or crib-biting. Cribbing is considered to be an abnormal, compulsive behavior seen in some horses, and is often labelled ...