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H&N submand
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37
Anatomy
Professional
06/25/2010

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Term
Sublingual(SL) space contains:
Definition
SL gland, deep submandibular gland and duct, lingual n, a, v, submandibular ganglion, hypoglossal n
Term
Submandibular (SMd) space contains:
Definition
SMd gland, lymph nodes, hypoglassal n, n to mylohyoid, facial a&v, submental a&v
Term
Submental (SMe) space contains:
Definition
connective tissue and submental lymph nodes
Term
The sublingual and __________spaces are connected posteriorly
Definition
submadibular
Term
The submandibular and __________ spaces are connected anteriorly
Definition
submental
Term
The source of both the SMe and SL salivary glands pre and post parasympathetic innervation?
Definition
Pre: Chorda tympani (VII)
Ganglion: Submandibular
Post: distributed via the lingual n (V3)
Term
Parotid salivary glands pre and postganglionic parasympathetic innervation?
Definition
Pre: tympanic n (IX) an lesser petrosal
Ganglion: Otic
Post: distributed by auriculotemporal n (V3)
Term
What mm elevate hyoid and depress mandible?
Definition
Suprahyoids: Digastric (both bellies), stylohyoid, (Myelohyoid also a suprahyoid that pulls hyoid anteriorly)
Term
What m depresses the soft palate while elevating the tongue?
Definition
palatoglossus
Term
The geniohyoid and myohiod both do what?
Definition
draw hyoid anteriorly
Term
Extrinsic mm of the tongue and their actions:
Definition
Hyoglossus -> depress
Styloglossus -> Elevates and retracts
genioglossis -> protrudes
Term
The intrinsic and extrinsic mm of the tongue are innervated by what n?
Definition
Hypoglossal (XII)
Term
Tee intrinsic mm of the tongue from superior to inferior:
Definition
Superior longitudinal
Transverse & vertical
Inferior longitudinal
Term
What would you see in a hypoglossal n (XII) injury?
Definition
hypertrophy on side of lesion w/ tongue deviation to side of lesion
Term
Afferent innervation of the anterior 2/3 of the tongue is from? (bonus: GA to posterior 1/3?)
Definition
anterior 2/3 = lingual n (V3)
bonus: posterior 1/3 = glossopharyngeal n (IX)
Term
Taste innervation of the tongue?
Definition
VII: anterior 2/3
IX: posterior 1/3
X: epiglottis
Term
The facial artery supplies the submadibular space,including SM and SL glands via the ________ branch
Definition
submental
Term
The lingual a from the external carotid supplies:
Definition
tongue, SM & SL glands, floor of mouth
Term
Branches of the lingual a?
Definition
Deep lingual, sublingual, dorsal lingual aa
Term
if you were looking at a coronal section thru the floor of the mouth name the mm from medial to lateral.
Definition
genioglossus, hyoglossus, mylohyoid
Term
looking at the floor of the mouth from a midsagital view, name the mm you would see bottom (chin) to top (tongue)
Definition
mylohyoid, geniohyoid, genioglossus
Term
name the 3 structures that travel together toward the apex on the ventral surface of the tongue
Definition
lingual n, deep lingual a & v
Term
what ganglion is suspended from the lingual n at about M3?
Definition
submandibular ganglion
Term
the lingual nerve crosses the __________ on it sway to the tongue
Definition
submadibular duct
Term
the submandibular duct passes anteriorly medial (and sometimes w/in) the _______ ____
Definition
sublingual gland
Term
do the facial a & v pass together over the submadibular gland?
Definition
nope. a goes deep. v goes superficial.
Term
4 structures that pass over the hypoglossal m?
Definition
vena comitans
hypoglassal n
lingual n
submadibular duct
Term
2 structures that pass deep to hypoglossal m?
Definition
lingual a
deep lingual v
Term
stage 1 of deglutination is a _________ process involving what mm?
Definition
voluntary, occurring in the mouth
intrinsic tongue mm
genioglossus m (relaxes)
Term
stage 2 of deglutination is an _________ process, occuring in the __________?
Definition
involuntary
pharynx
Term
stage 2 of deglutination: what 2 mm are responsible for raising soft palate to close off the nasopharynx?
Definition
levator and tensor veli palatini
Term
stage 2 of deglutination: mm responsible for acting on the hyoid to keep bolus from entering airway?
Definition
mylohyoid
geniohyoid
ant belly of digastric
Term
stage 2 of deglutination: mm who contract pharynx over bolus?
Definition
stylopharyngeus
palatopharyngeus
salpingopharyngeus
Term
stage 3 of deglutination is an ___________ process that occurs in the _______& ________.
Definition
involuntary
pharynx --> esophagus
Term
stage 3 of deglutination: 3 mm responsible for propelling bolus into esophagus?
Definition
superior, middle, and inferior pharyngeal constrictor mm
Term
afferent branch of the swallowing reflex?
Definition
glossopharyngeal n (IX)
Term
efferent branch of the swallowing reflex?
Definition
vagus (X)
* with contributions from IX, V3, C1
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