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Origin insertion fibers run longitudinally

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Origin & insertion: fibers run longitudinally,transversely, & vertically in tongueAction: change shape of tongueInnervation: hypoglossal n. (CN XII)
S A L I VA RY G L A N D SIntrinsic salivary glandsScattered throughout the mucosa of the tongue, cheeks, and lipsSecrete continuously and function to keepExtrinsic salivary glandsLie external to mouthSecret into mouth via ducts only while you are eating, their saliva wets andbinds masticated food and enzymes contained in the saliva begin digestion ofstarchesParotid glandsAre found anterior to the ear, between the masseter muscle and the skinInnervation = Glossopharyngeal n.Parotid ductDraining each gland runs anteriorly, parallel to zygomatic arch, and thenpenetrates the cheek (buccinator m.) to open into the mouth lateral to thesecond upper molarSubmandibular glandsFound just anterior to the angle of the mandible along the medial surface. Theyopen into oral cavity under the tongue.Innervation = facial n.Sublingual glandsFound on the floor of the mouth, anterior to tongue.Innervation = facial n.
T E E T HThe teeth tear and grind food.They are found in sockers called alveoli, in the gum-covered margins of the mandible and maxillae.16 teeth attached to each jaw:4 chisel-shaped incisors used for nipping off pieces of food2 cone-shaped canines for tearing and piercing food4 premolars & 6 molars whose broad crowns and rounded cusps are used for grinding food
C L I N I C A LBell’s Palsy = unliteral facial nerve paralysisMumps = rare disease, but parotiditis (inflammation of the parotid gland) is a commonsymptom of itInfluenza = common disease, sialadenitis of submandibular gland is a rare symptomHypoglossal nerve paralysis – part of the tongueCleft palate – involves soft palate
THE NOSE
T H E N O S E , N A S A L C AV I T Y, A N D P A R A N A S A LS I N U S E S P E R F O R M 5 I M P O RT A N T F U N C T I O N S :1.An airway is provided for respiration2.Air entering that passageway is moistened and warmed3.The entering air is also filtered and cleansed of foreign particles4.The entire nasal apparatus serves as a resonating chamber for speech5.The olfactory (smell) receptors are housed in the roof of the nasal bone
N O S E + N A S A L C AV I T YExternal nose composed ofnasal bones and cartilageExternal nares / nostrils=anterior openings to thenasal cavityInternal nares= posterioropenings that providecontinuity with the pharynxNasal septum= dividescavity into right and left,made up of vomer,perpendicular plate ofethmoid, and septal cartilageRoof of nasal cavity = formed byethmoid cribriform platesThe floor of nasal cavity (palate) =composed by maxillae, palatine bones,and a soft muscular palateLateral walls of nasal cavity = formed bysuperior and middle conchae, inferiornasal conchae, and the vertical plates ofthe palatine boneNasal cavity is lined by a ciliated mucosa, itsecretes about 1 qt of mucous a dayforming a sticky sheet over the mucosal

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Term
Spring
Professor
Babcock
Tags
Internal carotid artery, Common carotid artery, CN, external carotid artery

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