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Oral Anatomy pt 1
Oral Anatomy
86
Anatomy
Not Applicable
02/28/2014

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Cards

Term
What are the 12 cranial nerves?
Definition
1.olfactory
2.optic
3.oculomotor
4.trochlear
5.trigeminal
6.abducans
7.facial
8.vestibulocohlear
9.glossopharyngeal
10.vagus
11.accessory
12.hypoglossal
Term
What does the olfactory nerve do? Is it sensory or motor?
Definition
sense of smell, sensory
Term
What does the optic nerve do? Is it sensory or motor?
Definition
sense of sight, sensory
Term
What does the oculomotor nerve do? Is it sensory or motor?
Definition
-eye muscles, pupils, lens,levator superioris muscle
-it is motor
Term
What does the trochlear nerve do? Is it sensory or motor?
Definition
-eye muscles
-motor
Term
What are the 3 branches of the trigeminal nerve?
Definition
1.ophthalmic division(S)
2.maxillary division(S)
3.mandibular division(B)
Term
What is the trigeminal ganglion?
Definition
sensory part of the nerve
Term
What is the ophthalmic division of the trigeminal nerve do?
Definition
-skin near upper eye, nasal cavity, forehead
-sensory
Term
What does the maxillary division of the trigeminal nerve do?
Definition
-upper teeth, oral and nasal cavity, skin of cheek
-sensory
Term
What does the mandibular branch of the trigeminal nerve do?
Definition
-lower teeth, anterior tongue, skin of the lip and chin, muscles of mastication
-motor and sensory
Term
What does the abducens nerve do? Is it sensory or motor?
Definition
-eye muscles
-motor
Term
What does the motor portion of the facial nerve do?
Definition
muscles of facial expression
Term
What does the sensory portion of the facial branch do?
Definition
parasympathetic to the sublingual and submandibular salivary glands , taste to anterior tongue
Term
What is the facial nerve branch to the glands and tongue?
Definition
chorda tympani
Term
What is the foramen of the facial nerve?
Definition
stylomastiod foramen
Term
What is the vestibulococglear nerve? Is it motor or sensory?
Definition
-sense of hearing and balance
-sensory
Term
What does the glossopharyngeal nerve do? Is it motor or sensory?
Definition
-taste sensation to posterior tongue, parasympathetic to parotid gland, motor nerve to stylopharyngeous muscle
-motor and sensory
Term
Is the vagus nerve sensory or motor?
Definition
both
Term
What are the motor portions of the vagus nerve?
Definition
muscles of the pharynx and larynx, muscles of the soft palate, smooth muscle and glands of the body, cardiac muscle
Term
What are the sensory portions of the vagus nerve?
Definition
root of the tongue and epiglottis
Term
is the accessory nerve sensory or motor? What does it do?
Definition
trapezius, sternocleidomastiod, muscles of the pharynx, larynx and soft palate
Term
Is the hypoglossal muscle sensory or motor? What does it do?
Definition
-motor
-muscles of the tongue except the palatoglossus
Term
Which nerves are just sensory nerves?
Definition
I, II, VIII
Term
Which nerves are pure motor nerves?
Definition
III, IV, VI
Term
Which cranial nerve is responsible for taste on the anterior portion of the tongue?
Definition
facial (VII)
Term
Which cranial nerve is responsible for taste on the posterior tongue?
Definition
glossopharyngeal
Term
What are the 3 branches of the trigeminal nerve? Are they sensory or motor?
Definition
1.opthalmic(S)
2.maxillary(S)
3.mandibular(B)
Term
What are the 3 branches of the opthalmic nerve?
Definition
1.frontal
2.lacrimal
3.nasociliary
Term
What does the opthalmic nerve leave the skull through?
Definition
the superior orbital fissure
Term
What does the maxillary nerve leave the skull through?
Definition
foramen rotumdum
Term
Where does the mandibular foramen leave the skull?
Definition
foramen ovale
Term
What is the mandibular nerve's motor purpose?
Definition
muscles of mastication and mylohyoid muscle
Term
What is the nerve that serves the lingual tissues of the anterior maxillary teeth?
Definition
nasopalatine nerve, maxillary branch, trigeminal nerve
Term
Which nerve innervates the mucosa of the hard palate?
Definition
greater palatine nerve, maxillary branch, trigeminal nerve
Term
Which teeth does the anterior superior alveolar nerve innervate?
Definition
canine-canine(6-11)
Term
Which teeth does the middle superior alveolar nerve innervate?
Definition
premolars and the mesial-buccal root of the first molar
Term
Which teeth does the posterior superior alveolar nerve innervate?
Definition
molars EXCEPT MB root of 1st molar
Term
What is the nerve that innervates the mandibular teeth?
Definition
inferior alveolar nerve
Term
If someone is having pain on the lingual gingiva of the mandible, which nerve would need to be numbed?
Definition
the lingual nerve of the mandibular branch of the trigeminal nerve
Term
Which nerve is responsible for the sublingual and submandibular gland?
Definition
facial nerve
Term
Which nerve is responsible for the parotid gland?
Definition
glossopharyngeal
Term
What is the pacemaker of the heart?
Definition
the SA node
Term
Do arteries carry blood to or away from the heart? Is it oxygenated or deoxygenated?
Definition
away, oxygenated(red)
Term
Do veins carry blood to or away from the heart? Is it oxygenated or deoxygenated?
Definition
to, deoxygenated(blue)
Term
What do the coronary arteries supply blood to?
Definition
the wall of the heart
Term
What is the flow of the heart with deoxygenated blood? (6)
Definition
1.superior & inferior vena cava
2.right atrium
3.tricuspid valve
4.right ventricle
5.pulmonary artery
6.lungs(becomes oxygenated)
Term
What is the flow of the heart after the lungs? (oxygenated blood)?
Definition
lungs
7.pulmonary vein
8.left atrium
9.bicuspid(mitral valve)
10.left ventricle
11.aorta
Term
What are the 2 branches of the aorta?
Definition
1.brachiocephalic artery(unilateral)
2.carotid
Term
Which side is the brachocephalic artery on?
Definition
ONLY on the right side
Term
What are the 2 branches of the carotid artery?
Definition
internal and external
Term
What does the internal carotid artery innervate?
Definition
skull, eye, brain
Term
What does the external carotid artery innervate?
Definition
teeth, tongue, muscles of mastication, everything we are concerned with
Term
What does the maxillary artery carry blood to?
Definition
teeth, muscles of mastication, oral and nasal cavities, palate and ear
Term
What does the lingual artery carry blood to?
Definition
tongue, floor of the mouth, tonsils, epiglottis
Term
What does the facial artery carry blood to?
Definition
muscles of facial expression, lips, eyelids, muscles of skin of the nose, muscles of the soft palate and pharynx
Term
Which artery does the jugular vein run with?
Definition
the carotid
Term
what does the internal juglar vein drain?
Definition
entire brain area, most tissues of the head and neck
Term
What does the facial vein drain?
Definition
facial structures, nose, lips, eyes, submandibular and submental areas
Term
What does the facial vein drain into?
Definition
the internal jugular vein
Term
What does the lingual vein drain?
Definition
tongue
Term
What does the lingual vein drain into?
Definition
the facial vein and internal jugular vein
Term
What does the pyerygoid plexus drain?
Definition
collection of small veins around maxillary tuberosity and pterygoid muscles
Term
What do all the veins of the pterygoid plexus join together to form?
Definition
the maxillary vein
Term
WHat happens if a small vein in the pterygoid plexus is pierced when administering a PSA?
Definition
hematoma
Term
What is the maxillary vein formed by?
Definition
the drainage of venous blood from the pterygoid plexus
Term
What is the flow of blood from the teeth to the heart?
Definition
1.alveolar veins into pyerygoid plexus
2.maxillary vein
3.retromandibular vein
4.jugular vein(usually internal)
5.brachiocephalic
6.superior vena cava
7.right atrium of the heart
Term
What is the cavernous sinus?
Definition
sinus containing venous blood near the base of the brain behind the bridge of the nose, untreated infections may cause death
Term
What is the function of the lymphatic system?
Definition
help the venous system in returning fluids to the bloodstream from tissues in the body
Term
What do the submental nodes drain from?
Definition
-mand incisors
-tip of tongue
-midline of lip
-chin
-floor of the mouth
Term
What do the submandibular nodes drain from?
Definition
fluid from all teeth EXCEPT mand incisors and possibly 3rd molars)
Term
What do the submental nodes drain into?
Definition
the submandibular nodes
Term
What do the submandibular nodes drain into?
Definition
superior deep cervical
Term
What do the superior deep cervical nodes drain?
Definition
-fluid from submand nodes
-3rd molars
-wall of throat
Term
What are the retrophayngeal nodes?
Definition
part of the superior deep cervical nodes that are 1st affected if a person's throat is infection
Term
What do the superior deep cervical nodes drain into?
Definition
the inferior deep cervical nodes
Term
What do the inferior deep cervical nodes drain from?
Definition
-superior deep cervical
-occipital
Term
Where does the fluid from the inferior deep cervical nodes drain into?
Definition
the bloodstream
Term
What is the flow of lymphatic drainage?
Definition
1.submental
2.submandibular
3.superior deep cervical
4.inferior deep cervical
5.right and left jugular trunks
6.right lymphatic duct and left thoratic duct
Term
Where does lymph fluid re-enter the bloodstream?
Definition
at the junction of the jugular and subclavian vein
Term
Where is the innervation of the muscles of mastication?
Definition
mandibular division of the trigeminal nerve
Term
What supplies blood to the muscles of mastication?
Definition
maxillary artery(branch of the external carotid)
Term
What is the origin, insertion, and action of the temporalis muscle?
Definition
O-temporal fossa
I-coronoid process, mandible(distal to 3rd molars)
A-retracts/elevates mandible
Term
What is the O, I, and A of the masseter muscle?
Definition
0-Zygomatic arch
I-outside surface of the mandible(angle and ramus)
A-elevates the mandible
Term
What is the O, I, A of the medial pterygoid muscle?
Definition
O-medial side of the pterygoid plate, maxillary tuberosity
I-medial surface of angle of mandible
A-elevates and protrudes the mandible
Term
What is the O, I, A of the lateral pyerygoid muscle?
Definition

O-sphenoid bone

I-TMJ disc and neck of condyle

A-protrudes mandible, lateral shift

Term
What are the 4 muscles of mastication?
Definition
1.temporalis
2.massetor
3.medial pterygoid
4.lateral pyerygoid
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