Tag: PNS

November 14, 2025 / Mohammed looti

PERIPHERAL NERVOUS SYSTEM (PNS)

Introduction and Definition of the Peripheral Nervous System (PNS) The Peripheral Nervous System (PNS) comprises the entirety of the neural structure that resides exterior to the confines of the Central Nervous System (CNS), specifically excluding the tissue contained within the cranium and the spinal column. Serving as the essential communication bridge, the PNS is responsible […]

October 19, 2025 / Mohammed looti

CRANIAL DIVISION

The Cranial Division of the Parasympathetic Nervous System The Core Definition and Function The cranial division constitutes the superior component of the Parasympathetic Nervous System (PNS), an essential regulatory arm of the autonomic nervous system. It is defined by its preganglionic fibers, which originate within specific nuclei of the brainstem and travel outward along the […]