nervus facialis

  • View
    7

  • Download
    0

Embed Size (px)

DESCRIPTION

neurologi, nervus, facialis, stroke

Text of nervus facialis

N.VII

N.VIIANATOMY AND PHYSIOLOGYMotorik: ekspresi wajah, scalp, earJg buccinator, platysma, stapedius, stylohyoid, and posterior belly of the digastricParasimpatis: submandibular and sublingual salivary glands, the lacrimal gland and to the mucous membranes of the oral and nasal cavitiesRasa/taste : 2/3 anterior lidahEksteroseptif: CAE, eardrumProprioseptif

Although most corticobulbar fibers to the facial nuclei decussate in or rostral to the pons, some descend in the aberrant pyramidal tract to medullary levels, decussate there, and ascend contralaterally in the dorsolateral medulla to reach the facial nucleus.The facial nerve has two components, the motor root, which makes up about 70% of the fibers, and the sensory root, which accounts for 30%.The Nervus IntermediusThe NI is the sensory and autonomic component of the facial nerveGSA: eksteroseptif ke CAE dan MTSVA: taste 2/3 anterior lidah

Examination of the Motor FunctionsInspeksi simetris, t.u pada youngsubtle facial weakness: cukup sulit Lihat tonus, atrofi, fasikulasiFrekuensi dan simetrikal kedipan spontanInfrekuen pd parkinsonismPSP: omega sign alis mendekat fisura palpebra melebarAbnormal movement: hemifacial spasm (HFS), Other: tremors, tics, myoclonic jerks, chorea, and athetosis (involunter)Amati jg saat berekspresi alamiah pd lesi UMN

Gerakan:BanyakKhusus: cek platysma membuka mlut sambil melahan tahanan atau dgn clinch teethMembuka mata melawan kontraksi orbicularis okuliNormal: tdk bisa dibukaDpt membuka dgn small finger weaknessstylohyoid muscle and posterior belly of the digastric tdk dibukaM.stapedius hiperakusis dgn nada rendahJangan lupa liat dalam telinga liat vesikel

Examination of the Sensory FunctionsHanya periksa taste/rasa (sensori CAE blm ada cara yg diakui untuk priksanya)Ada lima rasa: pahit, asam, manis, asin, umamiBahan : sukrosa, NaCl, quinine, asam sitrat pada 2/3 anterior lidah, dgn lidah ttp protrusi, rinsed di antara test.Jika priksa pahit, itu yg terakhirBbrp suka menahan lidah dgn kasaDgn stik aplikator dicelupkan ke gula, pemanis buatan, atau garam, digosokan di salah satu sisi lidah. Tepi lidah sensasi kurang, paling baik di dorsal lidah & antara anterior dan middle thirdSudah ada filter paper strips rasa untuk pemeriksaanKebanyak dlm waktu