questions NDB Part 1

[babyteeth]

After an automovil accident , a patient,s chin deviates to the left on opening his mouth widely.His mandibule was probably fracture at which of the following points??

a. Genial Tubercule
b. Left Condylar Neck
c. Rigth condylar neck
d. Left mental foramen

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[Callous K9]

left condylar neck...answer/

 

[babyteeth]

left condylar neck...answer/

Can you tell me why??

 

[Callous K9]

Can you tell me why??

imagine if the subcondylar region is fractured ,the left lateral ptryegoid will not be able to move the mandible to the right.Right lateral is still working (by that i mean..not interupted by a right condylar fracture)and when it tends to protrude the mandible (during opening) along with the non functional left lateral..it moves to left side..which is the affected side.


my xplanation might suck. ..but i hope u get the point....
just read any anatomy book..n read up the funtcions of lateral pterygoids..and then u might understand...good luck.

 

[babyteeth]

imagine if the subcondylar region is fractured ,the left lateral ptryegoid will not be able to move the mandible to the right.Right lateral is still working (by that i mean..not interupted by a right condylar fracture)and when it tends to protrude the mandible (during opening) along with the non functional left lateral..it moves to left side..which is the affected side.


my xplanation might suck. ..but i hope u get the point....
just read any anatomy book..n read up the funtcions of lateral pterygoids..and then u might understand...good luck.

thanx got it

 

[gpg]

nice explaination.....absolutely true.....

 

[ItsGavinC]

I just reviewed this concept today for the zillionth time. Right on the money.