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45 Cards in this Set

  • Front
  • Back
what are the 12 cranial nerves? note they are in pairs.
olfactory, optic, oculomotor, trochlear, trigeminal, abducens, facial, vestibulocochlear, glossopharyngeal, vagus, spinal accessory and hypoglossal (Oh oh oh to touch a fresh virgin's glowing vagina, say hooray)
what nerve components provide sensory information from somatic structures like skin and skeletal muscle?
GSA
what nerve components provide sensory information from visceral organs like heart, lungs, etc?
GVA
what nerve components act as lower motor neurons to skeletal muscle derived from somites?
GSE
what nerve componenets act as autonomic messengers?
GVE
what nerve components act provide sensory information for vision, hearing and balance?
SSA
what nerve components provide sensory information for smell and taste?
SVA
what nerve components act as lower motor neurons to skeletal muscle of branchial/pharyngeal arch origin?
SVE
what major part of the brain does the olfactory nerve arise from and what is its main function (nerve component)?
the cerebrum and it is SVA for olfaction (smell)
around what brain region does the optic nerve arise from and what is its main function (nerve component)?
inferior to thalamus and it is SSA for vision, note that it is really not a nerve, but an extension of the brain.
the oculomotor nerve exits from what aspect of the brain and what is its main function (nerve component)?
It arises from the midbrain. GSE portion innervates all the extrinsic eye muscles (levator, palpebrae, and superioris) except the superior oblique which has GSE from the trochlear nerve and the lateral rectus which has GSE from the abducens nerve. oculomotor nerve also has GVE for the intrinsic eye muscles (smoothe muscles) which are the constrictor pupilae and cilliary muscles.
What part of the brain do the trochlear and abducens nerves exist?
trochlear - midbrain
abducens - pons
what part of the brain does the vestibulocochlear nerve exit and what is its main function (nerve component)?
it exits from the pons and it has SSA's for balance, equilibrium and hearing
where does the hypoglossal nerve exit the brain and what is its main function (nerve component)?
it exits from the medulla and it has GSE fibers that act on the muscles of the tongue except the palatoglossus which is innervated by the vagus and connects the tongue to the palate
what branchial arches give rise to what cranial nerves?
1st arch to the trigeminal
2nd arch to the facial
3rd arch to the glossopharyngeal
4th and 6th arches to the vagus (note 5th arch is lost in humans)
where does the trigeminal exit the brain?
the pons
the trigeminal nerves GSA components innervate what structures?
face, scalp, oral and nasal cavities, sinuses, meninges, anterior 2/3 of tongue, anterior part of auricle of ear, external auditory canal, and tympanic membrane.
The SVE portion of the trigeminal innervate what?
the muscles of mastication (temporalis and masseter) and the "matt" muscles (mylohyoid, anterior belly of digastric, tensor tympani, and tensor veli palatini).
The SVE portion of the facial nerve does what?
innervates muscles of facial expression and posterior belly of digastric, stylohyoid, and stapedius muscles
the GVE portion of the facial nerve does what?
innervates the lacrimal, submandibular, and sublingual glands
the GVA portion of the facial nerve does what?
provides sensory information from the lacrimal, submandibular, and sublingual glands
the SVA portion of the facial nerve does what?
senses taste on the anterior 2/3 of the tongue, and the soft palate
the GSA of the facial nerve does what?
provides sensory information from the small part of the auricle, external auditory canal, and tympanic membrane
the SVE portion of the glossopharyngeal nerve does what?
innervates the stylopharyngeus muscle
the GVE portion of the glossopharyngeal nerve does what?
innervates the parotid gland
the SVA portion of the glossopharyngeal nerve does what?
provides taste information from the posterior 1/3 of the tongue
the GVA portion of the glossopharyngeal nerve does what?
provides sensory information from the posterior 1/3 of the tongue, pharynx (nasal and oral), part of soft palate, middle ear, carotid body and sinus, and parotid gland.
the GSA portion of the glossopharyngeal nerve does what?
provides sensory information from the small part of the auricle, external auditory canal, and tympanic membrane.
otalgia (ear pain) may occur via irritation of what cranial nerves?
upper cervical or CN V, VII, IX, or X
what nerves provide major and minor innervation to the auricle?
major is via CN V (auriculotemporal), C2 (great auricular nerve), and C2,3 (lesser occipital nerve). Minor innervation is via CN VII, IX, X.
The external auditory canal and tympanic membranes are innervated by what nerves?
CN V, VII, IX, and X
what nerve and components are found in the semilunar ganglia?
V, GSA
what nerve and components are found in the geniculate ganglia?
VII, GSA, SVA, GVA
what nerve and components are found in the spiral and vestibular ganglia?
VIII and SSA
what nerves and components are found in the superior and inferior ganglia?
IX:GSA, GVA, SVA
X: GSA, GVA, SVA
what nerve is found in the ciliary ganglia?
III
what nerve is found in the pterygopalatine and submandibular ganglia?
VII
what nerve is found in the otic ganglia?
IX
what nerve is found in the walls of organs?
vagus
what nerves are found in the superior cervical ganglia?
sympathetics to the head
the SVE portion of the vagus nerve innervates what?
muscles of the pharynx, larynx, and soft palate except stylopharyngeus and tensor veli palatini
the GVE portion of the vagus nerve innervates what?
thoracic and ab viscera and gut to the left colic flexure.
the GVA portion of the vagus nerve recieves information from what?
lower pharynx (laryngopharynx), entire larynx, and fibers from thoracic and ab viscera
the SVA portion of the vagus nerve provides sensory info from what?
taste around the epiglottis
the GSA portion of the vagus nerve do what?
provide sensory info from the small part of the auricle, external auditory canal, and tympanic membrane