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Dissection 2/12 dissector pages 268-271
Terms in this set (21)
what is the the sublingual caruncle?
small rounded projection at the base of the lingual frenulum that houses the opening of wharton's duct from the submandibular salivary gland
what do the sublingual folds house?
the ducts from the sublingual salivary gland as they run to the caruncle
what divides the anterior 2/3 of the tongue from the posterior 1/3?
the terminal sulcus
are the lingual tonsils on the root or body of the tongue?
root (posterior 1/3)
where will you find the foramen cecum?
in the midline of the tongue at the terminal sulcus
what is the name of the midline mucosal fold between the dorsum of the tongue and the epiglottis?
the median glossoepiglottic fold
what is the name of the fold between the dorsum of the tongue and the lateral border of the epiglottis?
the lateral glossoepiglottic fold
what is the name for the depression between the median and lateral glossoepiglotic folds?
the epiglottic vallecula
name the anterior and posterior attachments of the geniohyoid muscle
anteriorly to the inferior mental spine of the mandible, and posteriorly to the body of the hyoid
name the anterior and posterior attachments of the genioglossus muscle, as well as its action and innervation.
anterior attachment to the superior mental spine of the mandible, posterior attachment to the hyoid bone and tongue. Acts to protrude the tongue, and innervated by hypoglossal XII
which way will the tongue protrude in the event of a hypoglossal nerve lesion and why?
it will protrude to the side of the lesion because the contralateral genioglossus muscle is working fine.
the sublingual gland rests immediately deep to the oral mucosa, and sits on what muscle?
does the lingual nerve off of (V3) pass superior or inferior to the submandibular duct on its way to the tongue?
the hypoglossal nerve passes between the deep part of the submandibular gland what muscle?
the hyoglossus muscle
name the superior and inferior attachments and action of the hyoglossus muscle
inferior at body and greater horn of hyoid bone and superior at lateral side of the tongue. acts to depress and retract the tongue.
where will you find the styloglossus muscle?
the superior end of the hyoglossus muscle
name the superior and inferior attachments and action of the styloglossus muscle
superior to the styloid process and inferior to the lateral side of the tongue. acts to retract and draw the tongue superiorly
of what is the lingual artery that supplies this area a branch?
the external carotid
does the lingual artery pass medial or lateral to the hyoglossus muscle?
after the sublingual artery branches off, what does the lingual artery become known as when it runs along the inferior surface of the tongue?
the deep lingual artery!
the intrinsic muscles of the tongue as well as the extrinsic muscles of the tongue (styloglossus, genioglossus, and hyoglossus) are innervated by what cranial nerve?
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