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Unit 2H

Autonomic Nervous System

QuestionAnswer
The CNS is composed of the ______ and the spinal cord Brain
The PNS is composed of the ________ of the body Nerves
Sensory ---> PNS---->__1___-->PNS-->Motor---->__2___ or ANS --->Sympathetic or ____3_____ 1. CNS, 2.Somatic, 3.Parasympathetic
Sensory neurons within PERIPHERAL nerves carry impulses from______ to _____ receptors, CNS
Motor neurons within PERIPHERAL nerves carry impulses from the _____ to the _____ CNS, Effectors
The effectors of the body are what kind of muscles ? Smooth, Cardiac, Skeletal
The effectors of the body are what kind of Glands ? Endocrine & Exocrine
2 Systems of the body ANS & Somatic
4 things the ANS is responsible for 1. Smooth Muscle 2. Cardiac Muscle 3. Endocrine glands 4. Exocrine Glands
The effectors that the ANS is responsible for can function Voluntarily or Involuntarily ? Involuntarily
The term autonomy means ? Self-government
Anatomically the ANS differs from somatic innervation of _______ muscles in one extremely important way. Skeletal
The SOMATIC pathway from the CNS to the skeletal muscle effector involves how many MOTOR neurons ? 1
CNS----Motor neuron----> Effector Somatic or ANS Somatic Pathway
In the ANS the pathway from CNS to effectors involves how many nerouns ? 2
A ganglion is ? collection of neuron cell bodies outside of the CNS
The two neurons involved in the ANS Pre-ganglionic & Post- Ganglionic
The name of the neuron that has its cell body in the CNS and courses its way to the Autonomic Ganglion is called the ? Pre-ganglionic Neuron
The neuron that has its Cell Body in the Autonomic Ganglion and carries its impulse from that ANG to the effector is called the Post-Ganglionic Neuron
The ANS is divided into TWO separates systems ? Sympathetic and Parasympathetic
5 Reasons why the ANS is divided into 2 separate systems 1. Anatomical 2. Ganglia 3. Length of Fibers 4. Actions 5. Number of Organs Activated
ANATOMICAL: the SYMPATHETIC involves all the _____ and the first 2 (sometimes 3)_______ spinal cord segments Thoracic, Lumbar (T1-L2(3*))
ANATOMICAL: the sympathetic system is anatomically called the ? THORACOLUMBAR SYSTEM
ANATOMICAL: The parasympathetic system involves 4 CRANIAL nerves __,__,__,__ and the ____ spinal cord segments __,__,__ (3,7,9,10), Sacral (S2,S3,S4)
ANATOMICAL: the parasympathetic system is anatomically called the ? Crainiosacral System
GANGLIA: which system has there ganglia near the spinal cord ? Sympathetic
GANGLIA: which system has there ganglia near or within the walls of the organ innervates Parasympathetic
LENGTH OF FIBERS: the sympathetic system has ____ Pre-ganglionic and _____ Post-ganglionic fibers. Short, Long
LENGTH OF FIBERS: the Parasympathetic system has ____ Pre-ganglionic and _____ Post-ganglionic fibers. Long, Short
ACTIONS: In general the 2 systems have _______ actions in organs where both innervate Opposing
# OF ORGANS ACTIVATED: The sympathetic system exhibits _____ activation where stimulation activates _____ organ(s) at a time Unit, MANY
# OF ORGANS ACTIVATED: The Parasympathetic system stimulation activates _____ organ(s) at a time ONLY 1
Receptors--SensoryN-->PNS-->CNS--MotorN-->Effector Somatic Or ANS Somatic
Receptors--SensoryN-->PNS-->CNS(PreGang)-->ANG(PostGang)-->Effector Somatic Or ANS ANS
Created by: osabdelr