Pl Explain - doyoudig

[ArchivalUser]

what is central facila paresis and how it this different from Bell's Palsy in pathophysiology...

[ArchivalUser]

CENTRAL HAS SPARIN OF UPPER FACE,..N BELLS HAS THE WHOLE FACE

[ArchivalUser]

Bells palsy results from a facial nrve lesion --in complete ipsilateral paralysis of muscles of facial expression, including an inabiility to to wrinkle the forehead or shut eye and a drooping corner of mouth.
Central or cortico bulbar lesion will result only in a drooping corner of mouth on the contralateral side of the face and no other facial deficit.
This is all due to the fact that the UMN innervation of of lower motorneurons in the facial motor nucleus is diff and clinically significant. the corticobulbar innervation of facial motorneurons to muscles of the upper face (which wrinkle the forehead, and shut the eyes) is bilateral (both side of cortex). The corticobulbar innervation of facial motorneurons to muscles of the mouth is contralateral. Clinically this helps to diff between the lesion of the 7 th nerve, and a lesion of the corticobulbar fibres to facial nucleus.
ex lesion in the Rt cortex deficit c/l lower face drooping mouth lt side.
brainstem lesion ipsilateral upper and lower face deficit.

[ArchivalUser]

thx much guys esp ndtv for great explanation did not understand pathologyphysio but now very clear

[ArchivalUser]

everybody is looking out for each other , you guys post such great ques, material no need for thnx its a pleasure.