Tongue Flashcards
what are the different functions/ movements
prehension
lapping
grooming
manipulation
speech/ articulation
where does the root of the tongue attach to?
Hyoid bone
why would some animals have a keratinised tongue?
for a a rougher more fibrous diet
which papillae are scattered over the tongue?
filiform
what are the taste papillae?
fungiform, foliate, vallate
name the mechanical papillae?
filiform
conical
marginal
lenticular
what is the function of filiform
grip food
what is the function of conical papillae and where on the tongue are they concentrated
food traction
at the base
function of marginal papillae
help newborn suckle teat
function of lenticular papillae
highly keratinised for a rougher diet
where are the vallate found?
base of tongue
where are the folate papillae found
side of tongue
what are the 4 extrinsic muscles in the tongue?
styloglossus
hyoglossus
genioglossus
geniohyodeus
what are the 3 extrinsic muscles in the tongue?
styloglossus
hyoglossus
genioglossus
what is the function of the styloglossus muscle and where does it originate from?
retraction
elevation
From the stylohyloid
what is the function of the hyoglossus muscle and where does it originate from?
retraction
depression
From the basilhyoid
wat is the function of the geniohyodeus muscle
thrusts the tongue forward
what is the function of the genioglossus muscle?
protrusion and retraction
What is the function of intrinsic muscles?
Stiffen the tongue
Through contraction of transverse and vertical bundles
What is the Lyssa
Skeletal muscle and adipose tissue on the central midline
What does the chorda tympani innervate, and what is it a branch of?
Fungiform papilla (Rostral 2/3 of taste papillae)
Branch of facial nerve
What innervated the rodtral 2/3 of the tongue
Lingual branch of mandibular nerve (Division of trigeminal nerve)
What innervates the caudal 1/3 of the tongue
Glossopharyngeal
Small extent vagus
Where are the common openings of the mandibular and major sublingual salivary ducts?
Caruncles (protuberances) behind the central incisors