Chapter 3 - Autonomic Nervous System Flashcards
Central Nervous System includes
Brain and spinal cord
Peripheral nervous system includes
Cranial nerves, spinal nerves
Nervous system is composed of
Central nervous system and peripheral nervous system
Sensory afferent axons
Axons myelinated by Schwann cells.
Conduct impulses to the central nervous system
Motor, efferent axons
Conduct impulses from central nervous system to muscles and glands
Motor neurons supplying voluntary, striated, skeletal muscle are
Somatic efferent neurons
Somatic refers to
Body, body wall, head, limbs, etc. where striated skeletal muscle is located
Motor neurons supplying involuntary smooth muscle of viscera*, blood vessels, cardiac muscles, and glands are..
Visceral efferent neurons
Neuron is composed of
Cell body and its processes
The autonomic nervous system functions are to
Control Involuntary activity, maintain homeostasis, and respond to stress
A gross enlargement along a nerve
Ganglion
Groups of neuronal cell bodies
Nuclei
This system helps the body withstand unfavorable environmental conditions or stress
Sympathetic division
This system is associated with normal homeostatic activity of visercal body functions
Parasympathetic division
The sympathetic division is limited to what portion of the spinal cord
Thoracolumbar
