Nerves Topo Flashcards
Innervation of Cranial Nerve II?
Optic nerve (II) – retina (special sensory); vision, transmission of light, pupillary reflex
Efferent nerve of pupillary reflex?
Oculomotor nerve (III)
Afferent nerve of pupillary reflex?
Optic nerve (II)
Innervation of cranial nerve III?
Oculomotor Nerve
- dorsal, ventral, and medial rectus mm,
- ventral oblique m.
- levator palpebralis
- sphincter pupillae
Cranial nerve IX
Motor/Sensory/Mixed?
Mixed nerve (glossopharyngeal n.)
Facial (VII) nerve is for?
Both motor and sensory.
- Motor for facial expression mm.
- Sensory to skin, special sensory to tongue via chorda tympani
Nerves of palpebrae?
- Afferent: trigeminal n. V (ophthalmic),
- Efferent: facial n. VII
Nerves of upper palpebrae?
- Motor – Facial n.
- Sensory – Maxillary n. (ex. Trigeminal n.)
Nerves of nostrils?
Trigeminal n. branches:
- Maxillary n. > infraorbital n. > caudal nasal n.
- Ophthalmic n. > nasociliary n.
Sensory nerves of tongue?
- Glossopharyngeal (IX)
- Facial (VII)
- Mandibular – Lingual branch (V3)
Motor of tongue?
Hypoglossal (XII)
What is blocked by mandibular nerve block?
- Salivary glands
- mastication mm
- lower teeth
- lower lip
- tongue
- part of external ear
Which facial muscles are innervated by trigeminal n.?
Muscles of mastication
Which nerves innervate muscles of mastication?
- Trigeminal n. (V)
- Mandibular n. (V3)
….masseter, temporal, buccal nn.
Afferent n. of eyelids?
Trigeminal (V) n.
Innervation of supraorbital n.?
Forehead (Ca and Ru nerve is absent)
Which nerve found in btw. The 2 heads of the flexors of ulna?
Ulnar n.
Which nerve runs with the cephalic vein?
Superficial radial n.
EQUINE: Innervation of the head?
Eyes: - abduscent (VI) n. - trochlear (IV) n. - oculomotor (III) n, - motor nn. - optic (II) - special sensory n. Muscles: - trigeminal (V) n. - motor to mastication muscles and sensory to skin - facial (VII) n. - mimic muscles Mouth: - vagus (X) n. - glossopharyngeal (IX) n. - hypoglossal (XII) - C1+C2
Or: infraorbital n., supraorbital n., infratrochlear n., mental n., facial n., auriculotemporal n. ? (don’t understand this part) ?
RUMINANTS: Which nerve should be anaesthetized when dehorning?
- Cornual n. (branch of lacrimal – ophthalmic – trigeminal)
- C1 + C2 (cervical nn.) Caudal auricular n.
