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CN - ANS Functions
CN - ANS Functions
CN - Taste functions
Taste Pathway
CN - Swallowing
100
There are four CN players for autonomic nervous system (ANS) functions. They are ____.
CN III, CN VII, CN IX, and CN X. Oculomotor, Facial, Glossopharyngeal, and Vagus.
100
Innervates the pupillary reflex.
CN III, Oculomotor. General visceral efferent.
100
Which three CN are involved in taste functions?
CN VII facial, CN IX glossopharyngeal, CN X vagus.
100
Taste pathways are processed IPSILATERALLY based on a ___ neuron order.
3-neuron order.
100
Five CN are involved in swallowing. They are:
CN V - trigeminal CN VII - facial CN IX - glossopharyngeal CN X - vagus CN XII - hypoglossal
200
The primary CN contributor to ANS functions is the _____.
Vagus, CN X.
200
The facial nerve innervates these glands:
Nasal glands (snot) Lacrimal glands (tears) Submandibular & Sublingual glands (saliva)
200
Taste cells are...
...chemoreceptors embedded in papillae; microvilli in taste buds respond to chemical structure.
200
All CN VII, IX, and X first order axons synapse on ____________ along the length of the MEDULLA.
SOLITARY TRACT NUCLEUS
200
This CN is involved in lip closure, salivation, and taste.
CN VII - Facial is involved in lip closure, salivation, and taste.
300
The four CN involved in ANS functions contribute to the (SNS/PSNS) of the ANS. [choose]
ParaSympathetic Nervous System
300
Glossopharyngeal nerve innervates the _____ gland that secretes saliva.
PAROTID (general visceral efferent function)
300
Conveys taste sensation from posterior 1/3 of the tongue:
CN IX glossopharyngeal
300
2nd order neurons send collaterals to the ____ which controls reflex responses (e.g., gagging, coughing, vomiting).
What is the RETICULAR FORMATION
300
The three functions of the TRIGEMINAL nerve related to swallowing are:
(1) bite & chew (2) Velopharyngeal closure (3) dampen auditory response to chewing
400
Branch functions vary, some are general visceral ______ while others are general visceral ______, some are both.
Afferent & Efferent
400
The _______ nerve conveys information related to the carotid body, while the _____ nerve conveys info related to the aortic arch.
Glossopharyngeal --> carotid body Vagus --> aortic arch
400
Conveys taste from the epiglottis:
Vagus; taste on epiglottis more prevalent in animals than humans.
400
2nd order axons ascend the SAME SIDE then synapse on the VPM (ventral posteromedial nucleus) of the _______.
Thalamus
400
The ___________ nerve functions include opening the Px, taste, and salivation while the _________ nerve only has the function of moving the bolus from the oral cavity to the Px.
Glossopharyngeal - pharyngeal opening, taste, salivation Hypoglossal - move bolus from oral to pharyngeal cavity
500
These two CN involved in ANS functions have both Afferent and Efferent functions.
What are CN IX glossopharyngeal and CN X vagus.
500
The _________ nerve innervates thoracic & abdominal viscera for energy conservation purposes (rest & digest)
Vagus.
500
CN VII conveys taste from ______.
Anterior 2/3 of the tongue.
500
3rd order neurons distribute to a variety of areas, including these three:
Insula, frontal operculum, and the orbital prefrontal cortex (for affective value) with a right-side preference.
500
The four functions of the vagus nerve, related to swallowing, are:
(1) move bolus through the pharynx (2) possibly help with taste (3) Laryngeal closure to protect the airway (4) velopharyngeal closure