「Nerv06/introduction/position of autonomic ganglia」の版間の差分

提供:一歩一歩
ナビゲーションに移動 検索に移動
編集の要約なし
編集の要約なし
16行目: 16行目:
//LEVEL:3
//LEVEL:3
//RAND
//RAND
交感神経幹には、交感神経  {=節前.~節後} 神経線維の神経終末がある。
Inside the sympathetic trunk is the nerve ending of the sympathetic  {=pre-ganglionic.~post-ganglionic} neuron.
Inside the sympathetic trunk is the nerve ending of the sympathetic  {=pre-ganglionic.~post-ganglionic} neuron.



2012年8月24日 (金) 02:37時点における版

POINT!
02516en.jpg


In either the sympathetic (dotted line) or the parasympathetic (solid line) nervous systems, the axon of the neuron leaving the central nervous system, changes the neuron once before innervating the effector. The synapse between these two neurons is called the (autonomic) ganglion. The (black-colored) neuron from the central nervous system to the the (autonomic) ganglion is called the pre-ganglionic neuron. The (pink-colored) neuron from the (autonomic) ganglion to the effector, is called the post-ganglionic neuron. The axons of the pre-ganglionic and post-ganglionic neurons are respectively the pre- and post- ganglionic fibers.

The representative ganglia of the sympathetic nervous system is the sympathetic trunk. The sympathetic trunk locates on both sides of the spinal cord. The ganglia of the para-sympathetic nerves often locates inside (or close to) the innervated organs.

Challenge Quiz

1.

Inside the sympathetic trunk is the cell body of the sympathetic pre-ganglionic.post-ganglionic neuron.

2.

Inside the sympathetic trunk is the nerve ending of the sympathetic pre-ganglionic. post-ganglionic neuron.

3.

The sympathetic ganglion is often in the innervating organ.sympathetic trunk .

4.

The para-sympathetic ganglion is often in the innervating organ. sympathetic trunk .

5.

In the sympathetic nerve, the pre-ganglionic fiber is long and the post-ganglionic fiber is short.pre-ganglionic fiber is short and the post-ganglionic fiber is long

6.

In the para-sympathetic nerve, the pre-ganglionic fiber is long and the post-ganglionic fiber is short. pre-ganglionic fiber is short and the post-ganglionic fiber is long