TOPIC 3C. Tongue, blood supply and innervation Flashcards
what is the tongue
muscular organ composed primarily of skeletal muscle
where is the tongue located
in the oral cavity and extends into the oropharynx
role of tongue
receptors for taste, temperature and pain
enhances heat loss in ca
components of the tongue
apex - free
corpus - attaches to floor by frenulum
radix - root attached to hyoid bone
sulcus mediana is in which species
ca
lyssa
a rod shaped cartilage in ventral median plane in ca only
torus linguae
prominence in ru only
mechanical papillae
filiform, conical and marginal
where are filiform papillae
body and apex mainly
most numerous
where are conical papillae
at root, pointy tip
where are marginal papillae
newborn ca and sus - aid suckling
name the gustatory papillae
fungiform, vallate, foliate
lentiformes in ru
where are fungiform
smooth rounded surface, apex and body
where are vallate papillae
junction between body and root
how many vallate papillae are in ca, eq, bo
ca - 4-6
eq - 2
bo - multiple
where are foliate papillae
lateral margins of the tongue in parallel grooves
what species are lentiformis papillae in
ru
name the intrinsic muscles of the tongue
fibra longitudinales supf and prof
fibrae transversae
fibrae perpendicularis
name the extrinsic muscles of the tongue
m. styloglossus
m. hyoglossus
m. geniohyoid
m. mylohyoid
m. sternohyoid
m. genioglossus
name the artieries and veins that supply the tongue
a and v lingualis - a and v profunda linguae
a sublingualis
arcus hyoideus
a submentalis - r submentalis
what sensory nerves innervate the tongue
n lingualis
chorda tympani of n facialis
what parasympathetic nerves innervate the tongue
n glossopharyngeus
n vagus
n hypoglossus
which muscles of the tongue does n hypoglossus innervate
m. styloglossus
m. hyoglossus
m. genioglossus
