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Unit 2H
Autonomic Nervous System
| Question | Answer |
|---|---|
| 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 |
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osabdelr