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gross anatomy 2 palmer > tongue > Flashcards

Flashcards in tongue Deck (21)
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1
Q

what are the 4 functions of the tongue?

A

taste
mastication
swallowing
speech

2
Q

what are the 5 parts of the tongue?

A
apex- against incisor teeth
margin- rests against teeth and gums
dorsum- upper
inferior surface- lower
root -base
3
Q

the sulcus terminalis is a V shaped groove that divides the tongue into?

A

oral part- anterior 2/3

oropharyngeal part- post 1/3

4
Q

what is the foramen located at the apex of the V of the sulcus terminalis?

A

foramen cecum

5
Q

what is the median groove?

A

shallow groove visible on the surface of the tongue

6
Q

what are the 4 lingual papillae?

A

filiform
fungiform
vallate
foliate

7
Q

which of the papillae are the largest and contain taste buds?

A

vallate papillae- V shaped row in front of sulcus terminalis

8
Q

which papillae are grooves and ridges along the margin of the tongue and contain taste buds?

A

foliate- poorly developed in humans

9
Q

what is a mass of lymphoid tissue found on the oropharyngeal surface of the tongue?

A

lingual tonsil

10
Q

what are the 2 folds that connect the tongue to the epiglottis?

A

median and lateral glossoepiglottic fold

11
Q

what is the space on either side of the median glossoepiglottic fold?

A

vallecula

12
Q

ankyloglossia is a condition of the tongue also known as?

A

tongue tied- has to do with the frenulum being the incorrect length

13
Q

all of the extrinsic muscle of the tongue are innervated by the hypoglossal nerve except?

A

palatoglossus- vagus nerve CN X via pharyngeal plexus

14
Q

what is the origin and insertion of the palatoglossus muscle?

A

O: soft palate
I: sides of tongue

15
Q

what is the function of the palatoglossus muscle?

A

elevate back of tongue

16
Q

the genioglossus prevents the tongue from falling back and blocking the airway leading to suffocation. This is important during?

A

general anesthesia

seizure disorders

17
Q

the general sensation of the anterior 2/3 of the tongue?

A

lingual nerve-branch of mandibular division of trigeminal

18
Q

where do we get taste receptors on the anterior 2/3 of tongue?

A

chorda tympani, branch of facial nerve CN VII

19
Q

both general sensation and taste of posterior 1/3 of tongue come from?

A

glossopharyngeal nerve CN IX

20
Q

what is the blood supply to the tongue?

A

lingual artery and vein

21
Q

what are the lymph nodes of the tongue?

A

submental, submandibular and deep cervical nodes