The peripheral nervous system (PNS) consists of cranial and spinal nerves that connect the CNS to other portions of the body, along with sensory receptors and ganglia. A nerve consists of axons that are bound together by connective tissue. Motor nerves contain mostly axons of motor neurons;

Autonomic Nervous System (ANS)

The Autonomic Nervous System or ANS is a major mechanism for neural control of physiologic functions. The autonomic nervous system (ANS) consists of portions of the central and peripheral nervous systems and functions without conscious control. Discussions of ANS usually take one of three perspectives: An anatomic

Disorders of The Nervous System – Inflammatory and Non Inflammatory

Inflammatory Disorders Meningitis (men-in-ji ‘-tis) results from a bacterial, fungal, or viral infection of the meninges. Bacterial meningitis cases are the most serious, with about 20% being fatal. If the brain is also involved, the disease is called encephalitis. Some viruses causing encephalitis are transmitted by bites

The Structures, Locations, and Functions of the Sensory Receptors

Sensory receptors for the general senses are widely distributed in the skin, muscles, tendons, ligaments, and visceral organs. Temperature Two types of thermoreceptors are located in the skin. Warm receptors are free nerve endings, which are sensory neuron dendrites, in the deep dermis that are most sensitive

The Location, Structure and Function of Olfactory and Taste Receptors

The sensory receptors for special senses are localized rather than widely distributed, and they, like all sensory receptors, are specialized to respond to only certain types of stimuli. There are three different kinds of sensory receptors for the special senses. Taste and olfactory receptors are chemoreceptors, which