Review of the Sympathetic and Parasympathetic Divisions definitions Flashcards

Refers to organs receiving inputs from both sympathetic and parasympathetic nervous systems.

Originate from spinal cord segments T1-L2, increase heart rate, and have short preganglionic fibers.

Originate from cranial and sacral regions, decrease heart rate, and have long preganglionic fibers.

Nerve fiber that extends from the central nervous system to a ganglion.

Nerve fiber that extends from a ganglion to an effector organ.

Chain of ganglia located near the spinal cord where sympathetic fibers synapse.

Ganglia where some sympathetic fibers synapse, bypassing the sympathetic trunk.

Ganglia located near or on effector organs where parasympathetic fibers synapse.

Nerves that bypass the sympathetic trunk to synapse in collateral ganglia.

Target organ or tissue that responds to nerve impulses.

Area of the brainstem where parasympathetic fibers originate.

Lower spinal region where parasympathetic fibers originate.

Physiological reaction to perceived harmful events, activated by sympathetic nervous system.

State of relaxation and digestion promoted by parasympathetic nervous system.

Junction between two nerve cells where impulses pass by diffusion of neurotransmitters.