「Nerve06/cranial nerves/04trochlear」の版間の差分
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{{Point|The trochlear nerve (number IV cranial nerve) functions as the nerve for superior oblique muscle, which operates through a pully.}} | {{Point|The trochlear nerve (number IV cranial nerve) functions as the nerve for superior oblique muscle, which operates through a pully.}} | ||
[[ファイル: | [[ファイル:Cranial04E.jpg|left|400px]] | ||
The trochlear nerve (number IV cranial nerve) functions as the nerve for superior oblique muscle. With the superior oblique muscle contraction, the tendon before the pully moves backwards, but the tendon after the pully moves frontwards. Thus the upper part of the eyeball moves forwards, and the eye looks downwards. The trochlear nerve (number IV cranial nerve) functions as a motor nerve and has no function in sensation. | |||
{{QuizTitle}} | {{QuizTitle}} | ||
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The trochlear nerve is the number {~I~II~III~=IV~V~VI~VII~VIII~IX~X~XI~XII} cranial nerve. | The trochlear nerve is the number {~I~II~III~=IV~V~VI~VII~VIII~IX~X~XI~XII} cranial nerve. | ||
</GIFT> | </GIFT> | ||
2016年4月24日 (日) 13:39時点における最新版
POINT!
| The trochlear nerve (number IV cranial nerve) functions as the nerve for superior oblique muscle, which operates through a pully. |
The trochlear nerve (number IV cranial nerve) functions as the nerve for superior oblique muscle. With the superior oblique muscle contraction, the tendon before the pully moves backwards, but the tendon after the pully moves frontwards. Thus the upper part of the eyeball moves forwards, and the eye looks downwards. The trochlear nerve (number IV cranial nerve) functions as a motor nerve and has no function in sensation.
Challenge Quiz
1.
The trochlear nerve is the number I II III IV V VI VII VIII IX X XI XII cranial nerve.