Has Two Efferent Neurons?

ANS General Features: Two Neurons. Visceral efferent

Visceral efferent
General visceral efferent fibers (GVE) or visceral efferents or autonomic efferents, are the efferent nerve fibers of the autonomic nervous system (also known as the visceral efferent nervous system that provide motor innervation to smooth muscle, cardiac muscle, and glands (contrast with special visceral efferent (SVE ...
› General_visceral_efferent_fibers
(VE) pathways that innervate smooth muscle, cardiac muscle, and glands involve two neurons and a synapse within an autonomic ganglion. ... (In contrast, somatic efferent (SE) innervation of skeletal muscle involves only a single neuron; its cell body in the CNS.)

What is the difference between preganglionic and postganglionic neurons?

Preganglionic neurons are a set of nerve fibers of the autonomic nervous system that connect the central nervous system to the ganglia. Postganglionic neurons are a set of nerve fibers that present in the autonomic nervous system which connects the ganglion to the effector organ.

What is the difference between SNS and ANS?

The somatic nervous system (SNS) deals with sensory input and voluntary motor (efferent) activities, while the autonomic nervous system (ANS) deals only with efferent (motor) signals from the CNS to control activities in the body that are distinct from those under conscious voluntary control.

James H. Sterling

James H. Sterling

Environmental Science & Climate Journalist

James Sterling reports on renewable energy developments, climate policy, ecological conservation, and green tech innovations around the globe.