Gross 30 Oral Cavity Flashcards
First arch in back of mouth
palatoglossus
Second arch in back of mouth
Palatopharyngeus
________ uses ______ as a pulley
Tensor veli palatini uses pterygoid hamulus as pulley
Greater palatine supplies
anterior palate
Lesser palatine supplies
Posterior palate
Soft palate venous drainage
pterygoid plexus
pharyngeal plexus
Arteries to soft palate
Descending palatine
Ascending palatine br of facial
Palatine br of ascending pharyngeal
Tensor veli palatini supplied by
Mandibular n. (V3)
Vagus supplies these soft palate muscles
Levator veli palatini Palatoglossus Palatophayngeus Musculus uvulae Salpingopharyngeus (via pharyngeal plexus)
Bleeding from _____ vein is common from tonsillectomy
paratonsillar vein
Nerve vulnerable to injury during tonsiillectomy
CN IX
Lingual nerve route
Enters oral cavity lateral to submandibular duct
Goes inferior then medial and superior (double cross)
Lingual nerve emerges where
between lateral and medial pterygoid muscles
Submandibular ganglion relays
P-symp from Chorda tympani (VII) to submandiublar and sublingual glands
Hypoglossal (XII) nerve runs between
Submandibular gland
Hyoglossus muscle
Glossopharyngeal (IX) runs lateral to and between
lateral to stylopharyngeus and between superior and middle constrictor muscles
Muscles of the tongue
palatoglossus Styloglossus Hyoglossus Genioglossus Intrinsic
Muscle that makes of bulk of tongue
Genioglossus
Unilateral paralysis of XII
Muscle involved
Which side deviates
Genioglossus protrudes tongue
Deviation toward the side of the paralysis
Branches of lingual a
Dorsal lingual
Deep lingual
Sublingual
Tongue Taste nerves
VII chorda tympani ant 2/3
IX post 1/3
X root and epiglottis
Tongue sensory nerves
Lingual (V3) anterior 2/3
IX post 1/3
X root and epiglottis
Oral cavity artery supply
Ant. sup. alveolar: infraorbital artery
Mid sup. alveolar: infraorbital artery
Post sup alveolar: maxillary artery
Inferior alveolar: maxillary artery
Types of epithelial membranes
Cutaneous membranes
Mucous membranes
Serous membranes