mouth and pharynx anatomy Flashcards
which is most anterior? hard or soft palate?
hard
major 3 salivary glands?
parotid
submandibular
sublingual
which duct corsses masseter, pierces medially through buccintaor ?
parotid duct
where is the submandicular duct?
deep to mucosa of mouth floor. opens on sublingula papillae
where is the sublingual glands?
deep to mucosa on floor of mouth (under tongue)
what gives parasympathetic innervation to parotid?
CN IX glosoopharyngeal
sensory innervation to parotid?
articulotemporal nerve from mandibular branch of trigeminal nerve
general sensory to anteriro 2/3rd tongue?
CN V3
special sensory to anterior 2/3rd tongue
facial
general and special sensory to posterior 1/3rd tongue
CN IX -glossopharyngeal
extrinsic tongue muscles?
genioglossus
hypoglossus
styloglossus
palatoglossus
course of hypoglossal nerve?
rootlets attach to medulla]passes through hypoglossaal canal in occiptial bone
descend in neck lateral to carotid sheath
supplies most muscles of tongue
how do you clinically test the hypoglossal nerve?
ask patient to stick out tongue.
if unilateral damage the tongue tip will point to the damaged side
blood supply to tongue
lingual artery
what are the 5 pairs of muscle of the soft palate?
right anf left:
levator veli palatini tensor veli palatini palatoglossus musculis uvulae palatopharyngeus
what supplies levator veli palatini
palatoglossus
musculis uvulae
palatopharyngeus
vagus
what supplies tensor veli palatini?
CN V3
how do you clinically test CN X and CN V3/
ask patient to say ahh.
if unilateral damage uvula will point to good side
what nerve innervates the constcrictor muscles of pharynx?
vagus
name the longitudinal pharynx muscles?
stylopharyngeus
palatophayrngeus
salpingpharyngeus
what do the longitudinal muscles of pharynx do?
elevate pharynx and larynx
what innervates the longitudinal muscles of pharynx?
vagus
difference between an infected lymph node and malignancy?
infection- swollen sore, soft, smooth, not fixed
cancer-swollen, not sore, hard, irregular, fixed
