The Tibetan Terrier is a medium-size breed of dog originated in Tibet. Despite its name, it is not a member of the terrier group. The breed was given its name by European travellers who first encountered it, because of its resemblance to known terrier breeds.he Tibetan Terrier is a medium-size breed of dog originated in Tibet. Despite its name, it is not a member of the terrier group. The breed was given its name by European travellers who first encountered it, because of its resemblance to known terrier breeds.
The parasympathetic nervous system (PNS) controls homeostasis and the body at rest and is responsible for the body's rest and digest function. The sympathetic nervous system (SNS) controls the body's responses to a perceived threat and is responsible for the fight or flight response.he sympathetic nervous system (SNS) is one of two main divisions of the autonomic nervous system (ANS). Its general action is to mobilize the body's fight-or-flight response.
The sympathetic and the parasympathetic systems originate from the  autonomic nervous system. The sympathetic nervous system activates  under stressful situations. The parasâ¦ympathetic system is in charge  of the rest and digest portions of response.