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What are the parts of the temporal bone?
articular fossa and eminence
stylomastoid foramen (VII)
What boneare the superior orbital fissure, foramen rotundum, and foramen ovale found in?
Sphenoid *(Sphenoid is so crowded that it's a Standing room Only)
Oh Oh Oh, to touch and feel vande graffs very accessable hair!
What is the function of the Trigeminal nerve?
Both (but) Opthalmic, maxilary and Mandibular divisions
What is the function of the facial nerve?
Both (brother); muscle of facial expression
taste (ANTERIOR 2/3 of tongue via chorda tympani)
Sublingual and sub mental salivary glands
What is the function of the glossopharyngeal nerve?
Both (big); posterior 1/3 of tongue, parotid gland
What is the function of the vagus nerve?
Both (boobs); smooth muscle of glands of the body and Cardiac muscle
What is the function of the Accessory nerve?
Motor (matter); trapezius, sternocleidomastoid muscle, pharynx and larynx
What is the function of the hypoglossal nerve?
Motor (more); muscles of the tongue (except palatoglossus, X, XI)
What muscles elevate the mandible?
Must Take Matt on the Elevator!
Masseter, Temporalis, Medial Ptyerygoid
What muscle allows side to side movement of mandible?
Lateral pterygoid, lateral movement with the lateral pterygoid
The masseter and medial pterygoid muscles have similar movements and locations, but how are they in relation to each other?
Medial pterygoid is internal; Masseter is external (think of giving an IA injection, the medial pterygoid is providing resistance)
What is a fibrous pad of dense collegen tissue, prevents bone to bone contact, divides the TMJ into upper and lower synovial cavities, and moves with the condyle under normal functions?
What is the movement where the condyle slides forward along the articualr fossa to the articular eminence>?
What artery feeds the muscles of facial expression?
the facial artery (a branch off of the External Carotid Artery)
What 4 supra-hyoid muscles depress (open) the mandible?
Mylohyoi-floor of mouth
What is the nerve inervation of the Sternocleidomastoid muscle and its action?
Accessory nerve XI; tilts and rotates the head
Flow of de-oxygenated blood from body to lungs?
superior and inferior vena cavae-->
pulmonary artery to lungs
Flow of oxygenated blood from lungs to body?
from lungs in pulmonary vein-->
bicuspid (mitral) valve-->
What sinus containing blood is locate on each side of the body of the sphenoid bone, near the base of the brain, behind the nose?
Submental nodes-->____________-->Deep cerival nodes
submental nodes --> submandibular nodes--> deep cervial nodes
What houses a ribosome-filled membranous network, and is the site for cellular protein synthesis?
ER; Endoplasmic Reticulum
What is the tissue that lines the oral cavity?
Stratified squamous epithelium;
good for protection, absorption, secretion
What tissue holds together, supports, and connects body parts?
bone, cartilage, fibrous, fat, blood, dentin, pulp, collagen
Most structures of the oral cavity develop from 2 embryonic processes; what are they?
1st branchial arch
The frontal process gives rise to 2 processes and a structure, what are they
Median nasal process
lateral nasal process
What 3 things does the median nasal process give rise to?
center and tip of nose
globular process (philtrum, premaxillary palate)
What 3 structures does the maxillary process give rise to?
lateral palatine processes (palatal shelves...bend & snap)
upper parts of cheek
sides of upper lip
What 3 structures does the mandibular process give rise to?
lower parts of the face and lower lip
anterior 2/3 of tongue
What seperates the oral cavity from the pharynx until rupturing during the 4th week?
How is the upper lip formed?
by the fusion of median nasal process and right/left maxiallary process?
What does the palate develop from?
the fusion of the globular process and right and left palatal shelves
what 4 nerves innervate the tongue?
5,7,9,12 (sensory, taste, taste, motor)
trigeminal, facial, glossopharyngeal, hypoglossal
what minor salivary glads are located in certain papillae, and which papillae are they?
glands of Von Ebner; circumvallate
what nervous system controls the salivary gland control?
Parasymathetic nervous system; rest and digest
What salivary gland secretes the most abundant saliva? and what type is it?
sub-mandibular; 65% mixed, mostly serous
What nerve controls the sub-lingual and sub-mandibular glands? Parotid gland?
What are the 5 stages of tooth development?
Initiation (BUD stage) Starts!
Proliferation (CAP stage) Grows!
Differentiation (BELL stage) Specializes!
What stageis it when the dental lamina growns into the underlying mesenchymal tissue at 20 places to form the primary teeth?
Initiation (BUD stage)
What stage is it when enamel organ develops from the dental lamina, the dental papilla arises from specialized connective tissue, the dental sac surrounds the developing tooth?
Proliferation (CAP stage)
During differentiation, the enamel organ develops into what 4 distinct layers?
Outer enamel epithelium
Inner enamel epithilium
What is crystalized calcium phosphate?
hydroxyapetite, mineralizes tooth matrix, dentin, cementum, bone
HERS are supposed to dissolve, if it doesn't dissolve disolve its remnants are known as what?
Rests of Malassez; have potential to form cysts
What tissues are non-keratinized?
floor of the mouth
What 2 dentins are primary and where are they located?
Mantle Dentin; 1st layer, immediately adjacent to the DEJ
Circumpulpal dentin; remaining dentin, adjacent to pulp
What are cementocytes and where are they located?
they're trapped cementoblasts located in the lacunae
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