A and E of cranial n Word Scramble
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| Question | Answer |
| What are general afferent fibers | fibers that have their cells of origin in cranial sensory ganglia |
| what do general somatic afferent (GSA) fibers carry? | carry exteroceptive (i.e. pain, temp, and touch) and proprioceptive information from sensory receptors in skin, muscle, tendons, and joints |
| General visceral afferent(GVA) fibers transmit what? | transmit impulses from visceral structures (i.e. hollow organs and glands) within the head neck and in the thoracic and abdominal cavities |
| What are special afferent fibers | fibers arise from neurons found only in the ganglia of certain cranial nerves |
| special somatic afferent (SSA) fibers convey what? | convey sensory information from special sense organs in the eye and ear (i.e. vision, hearing, and equilibrium) |
| special visceral afferent (SVA) fibers carry what? | carry impulses from olfactory and gustatory receptors |
| General efferent fibers arise from what? | from motoneurons in the brain stem and autonomic ganglia |
| general efferent fibers innervate what | collectively, they innervate all musculature of the body, except the branchiomeric muscles that develop in the pharyngeal arches of the embryo |
| general somatic efferent (GSE) fibers convey what | convey motor impulses to somatic skeletal mm (myotoic origin). In the head, the somatic musculature consists exclusively of tongue muscles and extraocular muscles |
| General visceral efferent (GVE) fibers control what? | control smooth muscle and cardiac muscle and regulate glandular secretion. Parasympathetic preganglionic and postganglionic cells and fibers are components of four cranial nerves |
| Special efferent fibers innervate what? | the musculature of branchiomeric origi. Arise from selected cranial nerve nuclei in the brain stem |
| Special visceral efferent (SVE) fibers consist of what | consist of nerve componenets that innervate straited muscles derived from the branchial (pharyngeal) arches. These include muscles of the jaw, of facial expression, and of the pharynx and larynx. |
| Are SVE fibers part of the autonomic nervous system? | NO |
| Cranial nerve I: Olfactory S, M, or B | Sensory |
| Cranial n. I: Olfactory fibers? | SVA |
| Cranial n. II: Optic N. : S, M, or B? | Sensory |
| Cranial n. II: Optic N. fibers? | SSA |
| Cranial n. III: occulomotor n. : S, M, or B | Motor |
| Crainial n III: occulomotor n. fibers? | GSE, GVE |
| Cranial n. IV: Trochlear n. : S, M, or B? | Motor |
| Cranial n. IV: Trochlear n fibers? | GSE |
| Cranial n V: Trigeminal: S, M, B? | Both |
| Cranial n V: Trigeminal n. fibers? | GSA, SVE |
| Cranial n. VI: Abducens n.: S, M, or B? | Motor |
| Cranial n. VI: Abducens n. fibers? | GSE |
| Cranial n. VII: Facial n.: S, M, B? | Both |
| Cranial n. VII: Facial n. fibers? | SVE, SVA, GVE, GSA |
| Cranial n. VIII: Vestibulocochlear n.: S, M, or B? | Sensory |
| Cranial n. VIII: Vestibulocochlear n. fibers? | SSA |
| Cranial n. IX: Glossopharyngeal: S, M, or B? | Both |
| Cranial n. IX: Glossopharyngeal n. fibers? | GVE, SVE, GVA, SVA, GSA |
| Cranial n. X: Vagus n: S, M, or B? | Both |
| Cranial n. X: Vagus n. fibers? | GVE, SVE, GVA, SVA, GSA |
| Cranial n. XI: Accessory n.: S, M, or B? | Motor |
| Cranial n. XI: Accessory n. fibers? | SVE |
| Cranial n. XII: Hypoglossal n: S, M, or B? | Motor |
| Cranial n. XII: Hypoglossal n. fibers? | GSE |
| Name the cranial nerves that exit through the midbrain? | Cranial n. III: Occulomotor Cranial n. IV: Trochlear |
| Name the cranial nerves that exit through pons? | Cranial n. V: Trigeminal Cranial n. VI: Abducens Cranial n VII: Facial Cranial VIII: Vestibulocochlear |
| Name the cranial nerves that exit through the medulla? | Cranial n. IX: Glossopharyngeal Cranial n. X: Vagus Cranial n. XI: Accessory Cranial n. XII: Hypoglossal |
| What cranial n. exits from the sides of interpenduncular fossa | Cranial n. III: Occulomotor |
| What cranial n emerges from the posterior surface of the midbrain and then wraps around to the anterior surface? | Cranial n. IV: Trochlear |
| What cranial n. penetrates brachium pontis? | Cranial n. V: Trigeminal |
| What cranial nn. exit from the niche of the cerebellopontine angle | Cranial n. VII: Facial Cranial n. VIII: Vestibulocochlear |
| What cranial nn. exit in the dorsolateral sulcus? | Cranial n. IX: Glossopharyngeal Cranial n. X: Vagus Cranial n. XI: Accessory |
| What cranial n exits via ventrolateral sulcus? | Cranial n. XII: Hypoglossal n. |
| What Cranial nerves cary SVA (4) | 1. Olfactory (I) 2.Facial (VII) 3. Glossopharyngeal (IX) 4. Vagus (X) |
| Which cranial nerves carry SVE (5) | 1.Trigeminal (V) 2. Facial (VII) 3. Glossopharyngeal (IX) 4. Vagus (X) 5. Accessory |
| Which cranial nerves carry SSA (2) | 1. Optic (II) 2. Vestibulocochlear (VIII) |
| Which cranial nerves carry GSE (2) | 1. Trochlear (IV) 2. Occulomotor (III) |
| Which cranial nerves carry GVE (4) | 1. Occulomotor (III) 2. Facial 3.Glossopharyngeal 4. Vagus |
| Which cranial nerves carry GSA (4) | 1. Trigeminal 2. Facial 3. Glossopharyngeal 4.Vagus |
| Which cranial nerves carry GVA (2) | 1. Vagus 2. glossopharyngeal |
| Function of olfactory n? | SVA-smell |
| Function of Occulomotor n. ? | GSE, GVE - raises eyelid (levator palpebrae superioris) Eyeball- up, down, medial (superior, inferior, medial rec) constricts pupil (ciliary & sphincter mm( |
| Associated nuclei with occulomotor (III) n. | Oculomotor nucleus (GSE) E-W Nucleus (GVE) |
| trochlear n associated nuclei | trochlear nucleus (GSE) |
| Abducens n associated nuclei | abducens nucleus (GSE) |
| Facial n associated nuclei | facial motor nucleus (SVE) Nucleus Solitarius (SVA) Superior salivatory and lacrimal (GVE) Spinal nucleus (GSA) |
| Vestibulocochlear associated nuclei | vestibular nucleus (SSA) Cochlear nucleus (SSA) |
| Glossopharyngeal n associated nuclei | Inferior salivatory (GVE) Nucleus ambiguus (SVE) Nucleus solitarius-caudal part (GVA) Nucleus solitarius (SVA) Spinal nucleus of V (GSA) |
| Vagus n associated nuclei | dorsal motor of X (GVE) nuclei ambiguus (SVE) nucleus solitarius (GVA) nucleus solitarius (SVA) spinal nucleus of V (GSA) |
| Accessory associated nuclei | nucleus ambiguus (SVE) nucleus ambiguus (SVE) ext. subnucleus of nucleus ambiguus (SVE) Accessory nucleus--spinal--(SVE) |
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Amusch21
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