PATHOLOGY

Detailed explanation-1: -The parasympathetic nervous system, also known as “rest and digest, ‘’ can be thought of as functioning in opposition to the sympathetic nervous system. Its functions include: A decrease in heart rate and contractility of cardiac muscle. Constriction of the ciliary muscle and the pupil for near vision.

Detailed explanation-2: -Parasympathetic Division of the Autonomic Nervous System The parasympathetic system can also be referred to as the craniosacral system (or outflow) because the preganglionic neurons are located in nuclei of the brain stem and the lateral horn of the sacral spinal cord.

Detailed explanation-3: -It is called the “rest and digest” division of the ANS. The parasympathetic nervous system decreases respiration and heart rate and increases digestion. Stimulation of the parasympathetic nervous system results in: Constriction of pupils.