Anatomia del Nervo Oculomotor e Cranial

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to Lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

Qual function los musculos constrictor pupillae e ciliari?

  • Elevar le palpebra superior
  • Adjustar le foco e le diametro del pupilla (correct)
  • Diriger le globo ocular verso basso e exteriormente
  • Controlar le movimento lateral del oculo

Qual symptoma non es typicamente associate con paralyse del nervo oculomotor (III)?

  • Ophthalmoplegia (paralyse del musculos ocular)
  • Dificultate de mirar verso alto (correct)
  • Diplopia (vision duple)
  • Ptosis (cadita del palpebra)

Qual es le consequentia principal de un lesion al nervo trochlear (IV)?

  • Difficultate in mirar verso basso e exteriormente (correct)
  • Vision duple quando se mira verso alto
  • Difficultate in mover le oculo lateralmente
  • Incapacitate de adjustar le pupilla al lumine

Qual characteristic anatomic es unic al nervo trochlear (IV) inter le nervos cranial?

<p>Illo es le sol nervo cranial que sale del cerebro dorsalmente e contralateralmente (A)</p> Signup and view all the answers

Quante al function del musculo oblique superior, qual movimento ocular resulta de su contraction?

<p>Depression e rotation externe (B)</p> Signup and view all the answers

Qual nervio cranial es exclusivemente un nervio motor?

<p>Nervio abducente (VI) (D)</p> Signup and view all the answers

Qual function specific es mediate per le fibras afferente somatic general (GSA)?

<p>Information de musculos, pelle, ligamentos e juncturas (D)</p> Signup and view all the answers

Qual combination de nervios cranial es responsabile pro le innervation del gusto?

<p>Facial (VII), glossofaringeo (IX), vago (X) (C)</p> Signup and view all the answers

Qual nervio cranial non ha un function motor?

<p>Vestibulocochlear (VIII) (D)</p> Signup and view all the answers

Qual nucleo motor es responsabile pro innervar le major parte del musculos del lingua?

<p>Nucleo del nervio hypoglossal (XII) (A)</p> Signup and view all the answers

Qual gruppo functional include le nervios que activa le musculos del facie, palato, bucca, pharynge e larynge (excludente le musculos del oculo e del lingua)?

<p>Efferente Visceral Special (SVE) (B)</p> Signup and view all the answers

Qual nervio cranial es responsabile pro le innervation parasympathetic del glandulas salivari superior e inferior?

<p>Nervio facial (VII) e glossofaringeo (IX) (A)</p> Signup and view all the answers

Qual nervio cranial servi como le principal mediator del information sensorial de organos visceral?

<p>Nervio vago (X) (A)</p> Signup and view all the answers

Qual functiones include le nervo spinal accessori (sXI)?

<p>Motor al musculos sternocleidomastoidee e trapezie. (C)</p> Signup and view all the answers

Qual nervos cranial es exclusivemente nervos de senso special?

<p>I, II, VIII (C)</p> Signup and view all the answers

Qual nervo cranial es le nervo vage e que functiones es associate con illo?

<p>Nervo X: sensori al aure, pharynge, larynge, e visceras; motor al pharynge, larynge, lingua, e musculos lisie del visceras. (B)</p> Signup and view all the answers

Le nucleo solitari es dividite in regiones rostral e caudal. Quales nervos cranial recipe information gustatori ab le parte rostral?

<p>VII, IX, X (A)</p> Signup and view all the answers

Qual function es primarimente associate con le nervo trigemino (V)?

<p>Mastication, tacto, e dolore del facie e bucca. (B)</p> Signup and view all the answers

Qual nervos cranial controla le musculos del oculo?

<p>III, IV, VI (A)</p> Signup and view all the answers

A que functiones servi le nervo facial?

<p>Le expressiones facial, le gusto, le secretion de lacrimas e saliva. (C)</p> Signup and view all the answers

Qual nervio cranial es responsabile pro le sensation al lingua, pharynge e palato molle, e etiam le motor al musculos del pharynge e stylopharyngee?

<p>Glossopharyngee (IX) (B)</p> Signup and view all the answers

Qual function particular ha le nucleo suprachiasmatic del hypothalamus in relation al nervo optic?

<p>Il influentiate rhythmos circadian basate super input visual. (D)</p> Signup and view all the answers

Qual es le consequentia de un lesion al nervo optic?

<p>Perdita del campo visual. (A)</p> Signup and view all the answers

Qual structura anatomic traversa le nervo optic dum illo cursa ab le retina al chiasma optic?

<p>Le canal optic. (A)</p> Signup and view all the answers

Que occurre al fibras nerval al chiasma optic?

<p>Approximativemente medietate del fibras crucia, e le altere medietate non crucia. (D)</p> Signup and view all the answers

Qual area del cerebro recipe le majoritate del fibras del tracto optic pro processar information visual?

<p>Nucleo geniculate lateral del thalamo. (A)</p> Signup and view all the answers

Qual nervo cranial innerva le musculo oblique inferior del oculo?

<p>Nervo oculomotor (III). (A)</p> Signup and view all the answers

Qual es le origine del fibras parasympathetic que innerva le musculos sphincter pupillae e ciliar?

<p>Nucleo Edinger-Westphal. (D)</p> Signup and view all the answers

A transverso de qual apertura ossee le nervo oculomotor passa ante entrar al orbita?

<p>Fissura orbital superior. (C)</p> Signup and view all the answers

Qual es le relation anatomic inter le nervo oculomotor e le arterias cerebral posterior e cerebellari superior in su cursa?

<p>Illo passa inter le arterias cerebral posterior e cerebellari superior. (D)</p> Signup and view all the answers

Qual ganglion contine le corpores cellular postganglionic del fibras parasympathetic que innerva le musculo ciliar?

<p>Ganglion ciliar. (D)</p> Signup and view all the answers

Qual es le consequentia directe de un lesion al nervo abducente (VI) que resulta in un paralyse?

<p>Le oculo sinistre es deviate medialmente. (C)</p> Signup and view all the answers

Qual es le rolo del neurones internuclear situate in le nucleo abducente?

<p>Projectar al neurones motor inferior del musculo recto medial via le fasciculo longitudinal medial (MLF). (B)</p> Signup and view all the answers

Qual es le signification clinic de un nervo abducente vulnerabile al disruption?

<p>Illo pote ducer a strabismo medial e vision duple. (B)</p> Signup and view all the answers

Qual es le componentes de fibras que origina ab le nucleo motor del nervo trigemino?

<p>Fibras SVE que suppli le musculos masticatori. (C)</p> Signup and view all the answers

Qualitate lo processo central del neurones in le nucleo mesencephalic del nervo trigemino al nucleo motor de CNV provide pro controlo reflex del morde?

<p>Illo provide retroaction sensorial. (D)</p> Signup and view all the answers

Qual function exequi le fibras GSA del nervo trigemino?

<p>Transmission de sensation facial al nucleos sensorial del nervo trigemino. (B)</p> Signup and view all the answers

Ubi se situa le nucleo mesencephalic del nervo trigemino, e que typo de informationes sensorial illo reciper?

<p>In le mesencephalo, reciper signos de fusos muscular de mastication e mechanoreceptores in le gingivas, dentes e palato dur. (A)</p> Signup and view all the answers

Qual del sequente descriptiones representa le curso del nervo abducente (VI) post su emergentia del junction pontomedullari?

<p>Illo curre rostralmente e lateralmente in le spatio subarachnoide del fossa cranial posterior, faciente un angulo acute super le apice del portion petrose ante entrar le sinus cavernose. (B)</p> Signup and view all the answers

Qual es le rolo del nervo trigemino (V) como un nervo special visceral efferente?

<p>Innervar le musculos de mastication usate pro rumination e deglutition. (A)</p> Signup and view all the answers

Qual es le consequentia de un lesion unilateral al nervo trigemino (V) in relation al fortia del morde?

<p>Habe un effecto leve super le fortia del morde. (C)</p> Signup and view all the answers

Qual branca del nervo trigemino (V) passa trans le fissura orbital superior?

<p>Le nervo ophthalmic (V1). (A)</p> Signup and view all the answers

Qual division del nervo trigemino contine brancas motor?

<p>Mandibular (D)</p> Signup and view all the answers

Le sensation de qual parte del lingua es mediate per un branca del nervo trigemino?

<p>Anterior 2/3 (D)</p> Signup and view all the answers

Qual del sequente non es un musculo innervate per le branca special visceral efferente del nervo trigemino (V)?

<p>Buccinator. (D)</p> Signup and view all the answers

Trans qual foramen abandona le nervo maxillar (V2) le cranio?

<p>Foramen rotundum (D)</p> Signup and view all the answers

In le examination clinic del function motor del nervo trigemino, que indica un deviation del maxilla verso le latere del lesion?

<p>Paralyse o paresis del musculos ipsilateral de mastication (D)</p> Signup and view all the answers

Qual nervo ramos del nervo mandibular e provide sensation al dente anterior 2/3 del lingua?

<p>Nervo lingual (D)</p> Signup and view all the answers

Qual es le significato clinic de un reflexo absente o exaggerante del maxilla durante le examination del nervo trigemino?

<p>Illo suggeste un lesion al tracto corticobulbar o al nervo trigemino mesme. (C)</p> Signup and view all the answers

Flashcards

Nervio VII

Nervio facial que controla la mayoría de las expresiones faciales y secreciones.

Nervio VIII

Nervio vestibulococlear responsable de la audición y el equilibrio.

Nucleo solitario

Conjunto de núcleos que procesan información sensorial de varios nervios.

Nervio IX

Nervio glosofaríngeo que proporciona sensación a la lengua y faringe.

Signup and view all the flashcards

Nervio X

Nervio vago que afecta funciones viscerales y sensibilidad en el oído.

Signup and view all the flashcards

Nervio XI

Nervio accesorio espinal que controla los músculos esternocleidomastoideo y trapecio.

Signup and view all the flashcards

Nervio V

Nervio trigémino que proporciona sensación a la cara y controla la masticación.

Signup and view all the flashcards

Nucleo mesencefálico

Parte del sistema nervioso en el mesencéfalo relacionada con la propriocepción.

Signup and view all the flashcards

Nervio Olfatorio

Nervio cranial I responsabile per l'olfatto.

Signup and view all the flashcards

Nervio Ottico

Nervio cranial II responsabile per la visione.

Signup and view all the flashcards

Nervi Misti

Nervi che contengono sia fibre motorie che sensoriali.

Signup and view all the flashcards

Nervio Trigeminale

Nervio cranial V, un nervio misto responsabile della sensibilità del viso e della masticazione.

Signup and view all the flashcards

Nervio Vago

Nervio cranial X responsabile della regolazione delle funzioni viscerali.

Signup and view all the flashcards

Nervi Sensori

Nervi contenenti solo fibre afferenti (sensibili).

Signup and view all the flashcards

Nervio Faciale

Nervio cranial VII, un nervio misto che controlla i muscoli della faccia.

Signup and view all the flashcards

Nervio Oculomotorio

Nervio cranial III che controlla i movimenti oculari.

Signup and view all the flashcards

Abducens Nerve (VI)

A cranial nerve responsible for lateral eye movement by innervating the lateral rectus muscle.

Signup and view all the flashcards

Lateral Gaze Coordination

The process of coordinating eye movements to look laterally, involving abducens and internuclear neurons.

Signup and view all the flashcards

Medial Rectus Muscle

Eye muscle that moves the eye medially; unopposed when abducens nerve is injured.

Signup and view all the flashcards

Course of CN VI

Path of the abducens nerve from the brainstem to the eye, passing through various structures.

Signup and view all the flashcards

Trigeminal Nerve (CN V)

Cranial nerve responsible for facial sensation and motor functions like chewing.

Signup and view all the flashcards

Sensory Nuclei of Trigeminal Nerve

Three sensory nuclei in the pons processing different types of facial sensation.

Signup and view all the flashcards

Mesencephalic Nucleus

Unique first-order sensory neurons that process proprioception from masticatory muscles and oral structure.

Signup and view all the flashcards

Trigeminal Ganglion

Cluster of nerve cells where GSA fibers transmit facial sensation, located at the petrous temporal bone.

Signup and view all the flashcards

Nervus optic

Nervus cranial II qui porta impulso per vista ab retine al cortex visual.

Signup and view all the flashcards

Chiasma optic

Locus dove parte del nervus optic se incrocia, permitente visione de opposto lato.

Signup and view all the flashcards

Corpo geniculato laterale

Struttura nel thalamus dove le fibre del nervus optic si sinapsono.

Signup and view all the flashcards

Funzione del nervus optic

Transporta impulso afferente per vista, permettente percezione visuale.

Signup and view all the flashcards

Nervus oculomotor

Nervus cranial III, responsabile per movimenti oculari e regole de pupilla.

Signup and view all the flashcards

Ganglio ciliare

Struttura che contiene corpi cellulare per innervazione parasimpatica del occhio.

Signup and view all the flashcards

Movimenti oculari

Muovimenti del occhio controllati dal nervus oculomotor e dai suoi rami.

Signup and view all the flashcards

Nuclei del nervus oculomotor

Gruppi de neuroni nel midbrain che controllano il nervus oculomotor.

Signup and view all the flashcards

Corso del nervus optic

Percorso del nervus optic dalla retina al cortex visual tramite canal optic.

Signup and view all the flashcards

Regolazione pupillare

Controllata dal nervus oculomotor per adeguarsi alla luce.

Signup and view all the flashcards

Nervio Oculomotor (III)

Nervio craniale responsable per motricitate ocular e function de pupil.

Signup and view all the flashcards

Ptosis

Protrahere de palpebra superlavia; resulta de disfunctia del nervio oculomotor.

Signup and view all the flashcards

Diplopia

Vision doppia; un symptom de varias lesions nervose ocular.

Signup and view all the flashcards

Nervio Trochlear (IV)

Nervio craniale que innerva le musculo oblique superior del oculo.

Signup and view all the flashcards

Musculo Oblique Superior

Musculo ocular responsable per dirigere le ochio de basso e de lato.

Signup and view all the flashcards

Trigeminal (V)

Nervio cranial V, responsabile per la sensibilità del viso e la motricità della masticazione.

Signup and view all the flashcards

Ophthalmic nerve (Ⅴ1)

Prima divisione del trigemino, fornisce sensazione alla parte superiore del viso.

Signup and view all the flashcards

Maxillary nerve (Ⅴ2)

Seconda divisione del trigemino, fornisce sensazione alla zona medio-facciale.

Signup and view all the flashcards

Mandibular nerve (Ⅴ3)

Terza divisione del trigemino, è un nervio misto che controlla i muscoli masticatori e fornisce sensazione inferiore.

Signup and view all the flashcards

Motor functions of V

Controlla i muscoli per masticazione come massetere e pterigoidei.

Signup and view all the flashcards

Sensory functions of V

Media sensazioni di dolore, temperatura e tatto fine sulla faccia.

Signup and view all the flashcards

Reflexes associated with V

Includono il riflesso della mascella e riflessi corneali.

Signup and view all the flashcards

Tic douloureux

Un disturbo neurologico che causa dolore intenso nel territorio del trigemino.

Signup and view all the flashcards

Branches of trigeminal

Include le divisioni oftalmica, mascellare e mandibolare per diverse aree facciali.

Signup and view all the flashcards

Testing trigeminal function

Valutare la sensibilità e la forza masticatoria nelle zone facciali.

Signup and view all the flashcards

Study Notes

Cranial Nerves Overview

  • Twelve pairs of nerves emerge from the brain
  • Categorized as sensory, motor, or mixed
  • Each nerve has unique functions and pathways
  • Cranial nerves are vital for various functions, including sensory perception (smell, sight, hearing), motor control (eye movement, facial expressions), and mixed functions

Functional Types of Cranial Nerves

  • General Somatic Efferent (GSE): controls skeletal muscles
  • General Visceral Efferent (GVE): controls visceral organs
  • Special Visceral Efferent (SVE): controls branchial muscles
  • General Somatic Afferent (GSA): relays sensory information from skin and muscles
  • General Visceral Afferent (GVA): carries sensory information from visceral organs
  • Special Visceral Afferent (SVA): carries sensory information related to taste and smell
  • Special Somatic Afferent (SSA): carries sensory information related to vision and hearing

Classification of Cranial Nerves

  • Sensory cranial nerves: contain only afferent (sensory) fibers
  • Motor cranial nerves: contain only efferent (motor) fibers
  • Mixed nerves: contain both sensory and motor fibers

Cranial Nerve Nuclei

  • Various nuclei within the brainstem
  • Each nucleus corresponds to specific cranial nerves and plays a role in the function
  • The locations of these nuclei vary throughout the brainstem

Olfactory Nerve (CN I)

  • Sensory nerve for smell
  • Pathway: olfactory mucosa → cribriform plate → olfactory bulb → olfactory tract → olfactory cortex
  • Special visceral afferent (SVA)

Optic Nerve (CN II)

  • Sensory nerve for vision
  • Pathway: retina → optic nerve → optic chiasm → optic tract → lateral geniculate nucleus → visual cortex
  • Special somatic afferent (SSA)

Oculomotor Nerve (CN III)

  • Motor nerve for eye movement -controls levator palpebrae superioris, superior rectus, medial rectus, inferior rectus, and inferior oblique muscles; innervation of the pupil and lens
  • General somatic efferent (GSE) and general visceral efferent (GVE)

Trochlear Nerve (CN IV)

  • Motor nerve for eye movement
  • Innervates the superior oblique muscle, responsible for downward and outward eye movements
  • General somatic efferent (GSE)

Abducens Nerve (CN VI)

  • Motor nerve for eye movement
  • Innervates the lateral rectus muscle, responsible for outward eye movement
  • General somatic efferent (GSE)

Trigeminal Nerve (CN V)

  • Mixed nerve with three major divisions: ophthalmic (V₁), maxillary (V₂), and mandibular (V₃)
  • Sensory functions: pain, temperature, and touch for the face and head.
  • Motor function: controls masticatory muscles (chewing)
  • . Mesencephalic nucleus: proprioception of muscles of mastication
  • Principal nucleus: touch and pressure receptors
  • Spinal nucleus: sensations; pain
  • Trigeminal nuclei
  • General somatic afferent (GSA)
  • Special visceral efferent (SVE)

Facial Nerve (CN VII)

  • Mixed nerve, performing both sensory and motor functions.
  • Sensory functions: taste from anterior 2/3 of the tongue
  • Motor functions: controlling facial expression muscles and parasympathetic functions glands including lacrymal (tearing) and saliva secretion of salivary glands.
  • Special visceral efferent (SVE) and special visceral afferent(SVA)

Vestibulocochlear Nerve (CN VIII)

  • Sensory nerve for hearing and balance
  • Special somatic afferent (SSA)

Glossopharyngeal Nerve (CN IX)

  • Mixed nerve, with both sensory and motor components
  • Sensory functions: taste from posterior 1/3 of the tongue, general sensation from the pharynx, and baroreceptors
  • Motor functions: innervates the stylopharyngeus muscle, and parasympathetic innervation to parotid gland
  • Special visceral afferent (SVA) and special visceral efferent (SVE)

Vagus Nerve (CN X)

  • Mixed nerve with extensive functions
  • Sensory functions: viscera, taste
  • Motor functions: controls swallowing, talking and innervation of thoracic and abdominal organs
  • General visceral afferent (GVA) and general visceral efferent (GVE)

Accessory Nerve (CN XI)

  • Motor nerve that controls the sternocleidomastoid and trapezius muscles of the neck and back
  • General somatic efferent (GSE)

Hypoglossal Nerve (CN XII)

  • Motor nerve for tongue movement
  • General somatic efferent (GSE)

Studying That Suits You

Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

Quiz Team

Related Documents

Cranial Nerves 2x PDF

More Like This

Use Quizgecko on...
Browser
Open
Browser
Browser