General Library

Lacking normal muscle tone or strength.

A partial or complete wasting away of a part of the body.

The immune system fails to recognize some part of the body’s cells and tissues, and attacks this unknown part.  Autoimmune disease is a subset of immune-mediated disease.

Pertaining to the autonomic nervous system, which controls bodily functions that are not under conscious control (e.g., heartbeat, breathing, sweating).

Division of the peripheral nervous system that regulates visceral function and homeostasis independent of voluntary control (e.g., heartbeat, breathing, sweating); divided into the sympathetic and parasympathetic divisions; both the autonomic and somatic nervous systems utilize motor neurons.

►click here to learn more-link provided by: University of Pennsylvania, School of Veterinary Medicine 
►click here to learn more-link provided by: University of Minnesota, College of Veterinary Medicine 

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motor neuron ; parasympathetic division ; peripheral nervous system (PNS) ; somatic nervous system ; sympathetic division

The tearing away of a part of a structure.

See transverse.

The second cervical vertebra. It forms the pivot upon which the atlas rotates.

►click here to learn more(see figure 62.1-B)-link provided by: University of Pennsylvania, College of Veterinary Medicine 
►click here to learn more-link provided by: University of Minnesota, College of Veterinary Medicine 

Long, slender projection from the neuronal cell body that is specialized for the conduction of information encoded in the form of action potentials. 

A degenerative process involving the axon and its myelin sheath.

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