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| Question |
Answer |
| What is a motor system - an involuntary motor system, i.e. needs no
conscious control. |
|
| Each "functional unit" consists of ___ ___ in series conducting from
the CNS to the periphery. |
|
| The 1st neuron whose cell body is located in the brain or in the
spinal cord and extends to a peripheral ganglion is called a |
|
| The second neuron is located somewhere outside the brain and the
spinal cord and is called a |
|
| One can divide the ANS on the basis of how the preganglionic fibers
leave the CNS: |
|
| is grouped together because of their anatomical similarity and is
spoken of as the___ division of the ANS. |
|
| is grouped together because there is similarity in location of their
ganglia (at the site of the organ innervated). In general, (1) and (3) are
anatomically similar and are referred to as the ___ division of the ANS.
|
|
| What are the principal differences between parasympathetic &
sympathetic divisions? |
|
| ___ ganglia are located in the sympathetic trunk and are located at
some distance from the organs they innervate. Hence, they have___
preganglionic cells and ___ postganglionic cells (except, splanchnic nn.).
|
|
| ___ ganglia are located in or very close to the organs they innervate.
They have ___ preganglionic cells and ___ postganglionic cells. |
|
| Target organs = |
|
| The target organs of the ANS are: |
|
| Functions of sympathetic |
|
| Functions of parasympathetic |
|
| Arises from T1 - L2. |
|
| Preganglionic fibers are |
|
| Postganglionic fibers are |
|
| what system is also organized on basis of pre- and postganglionic
neurons. |
|
| In the parasympathetic nervous system The ____ neurons leave the CNS
with cranial nn. III, VII, IX, X or sacral nn. of the spinal cord. |
|
| In the parasympathetic nervous system the ____ axons merge as a
component of a cranial n. or as a part of the anterior root of a sacral n.
|
|
| preganglionic axons of the ___ leave the nerve with which they are
associated and pass to organs which they innervate such as cardiac m.,
smooth m., and glands. |
|
| ___-ganglionic neuron synapse with their ___-ganglionic neurons in
ganglia near or in the organ they innervate; |
|
| ___ ganglia are not regularly spaced as are the ___ ganglia of the
sympathetic trunk. |
|
| Many ___ ganglia are of microscopic size |
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