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A and E of cranial n

Afferent and Efferent fibers of cranial nerve

QuestionAnswer
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)
Created by: Amusch21
 

 



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