exam 4: CN IX, X,XI,XII (need to watch) Flashcards
GLOSSOPHARYNGEAL NERVE (IX) is associated with what
tongue
pharynx
what foramen is this
Jugular foramen
what foramen is this
what 3 nerves run through it
Jugular foramen
CN IX, X, XI
what nerve is this
GLOSSOPHARYNGEAL NERVE (IX)
what nerves correspond to 1 and 2
- CN X
- CN XI
what does the Jugular foramen externally opens into a fissure
what is the name of this
Tympano-occipital fissure
said it was exam question
what important structure is the Tympano-occipital fissure close to
Tympanic Bulla
said it was exam question
Infections in the middle ear, which is housed in the tympanic bulla is very close to what fissure
Tympano-occipital fissure
said it was exam question
GLOSSOPHARYNGEAL NERVE (IX) Afferent or Efferent
Both
GLOSSOPHARYNGEAL NERVE (IX) has GSA from what part of the body
Sensory of the root of the tongue, palate, and pharynx.
GLOSSOPHARYNGEAL NERVE (IX) sends special visceral afferent (SVA) stimuli from what part(s) of the body
- Taste from the root of the
tongue (papilla) - Carotid sinus and body
does the GLOSSOPHARYNGEAL NERVE (IX) have efferent fibers
yes, GSE and GVE parasympathetic
what ganglion does the GVE signal of the GLOSSOPHARYNGEAL NERVE (IX) synapse at
Otic ganglion
GLOSSOPHARYNGEAL NERVE (IX) :
what are the two glands that the postganglionic parasympathetic (GVE) stimulus go to
Zygomatic gland & Parotid gland salivary glands
(increase secretion, and production of saliva)
GLOSSOPHARYNGEAL NERVE (IX) :
What muscle/ action is the GSE involved in
palatopharyngeal m.
involved in elevating the pharynx and larynx, contributing to the swallowing process
What does the Pharyngeal branch of the GLOSSOPHARYNGEAL NERVE (IX) send GVA signals from
Soft palate, and pharynx
What does the Lingual branch of the GLOSSOPHARYNGEAL NERVE (IX) send GVA signals from
GVA: Mucosa of the root of the tongue
Internal carotid artery has an expansion (bulb) forms the ________
sinus of the carotid
identify what nerve/branch goes to the root of the tongue
Internal carotid artery goes directly into the __________. This is why it is so important!
THE BRAIN
what are the receptors on the internal carotid artery
Carotid sinus (baroreceptors)
Carotid body (chemoreceptors)
what are the branches of the GLOSSOPHARYNGEAL NERVE (IX)
Carotid sinus branch
Lingual branch
Pharyngeal branch
Carotid body (chemoreceptors) of the Internal carotid sinus is for detection of what gas
CO2
The efferent part of the GLOSSOPHARYNGEAL NERVE (IX) has a pharyngeal branch that goes to what kind of muscle
Palatopharyngeal mm. (skeletal)
Medial to the tympanic bulla is
A bunch of nerves like the CN Glossopharyngeal- Pharyngeal branch
The overall job of the Pharyngeal branch of the Glossopharyngeal n is to control the
Constrictor muscles which control swallowing
pharyngeal plexus which consist of cranial nerves ___ and ____ controls swallowing
CN IX & CN X
Identify 1 and 2
- Tympanic bulla
- Pharynx, reflected
What nerves/structure is being pointed to by the yellow arrow
Nerves IX, X & XI and Internal carotid artery going through Tympano-occipital fissure
Identify 1-3
- Tympano-occipital fissure
- Internal carotid a.
- External carotid a
Identify 1-3
- CN X
- CN XI
- Vagosympathetic trunk