Anatomy Flashcards
1.
What are the 3 divisions of the trigeminal nerve?
Opthalmic
Maxillary
Mandibular
What does the opthalmic division of the sensory nerve supply?
Sensory supply of the soft tissues around the eye and upper face
What does the maxillary division of the trigeminal nerve supply?
Sensory supply of the upper teeth, the maxilla and middle area of the face
What does the mandibular divison of the trigeminal nerve supply?
Sensory supply of the lower teeth, the mandible and the lower area of the face, and motor supply to the muscles of mastication
What does the maxillary nerve lead to?
- Anterior superior dental nerve
- Middle superior dental nerve
- Posterior superior dental nerve
- infraorbital nerve
What does the anterior superior dental nerve supply?
Incisors, canine and their buccal gum
(3-3)
What does the middle superior dental nerve supply?
Premolars, part of 1st molar and buccal gum
(4,5 and 6mb)
What does the posterior superior dental nerve supply?
2nd and 3rd molars, part of 1st molar and buccal gum
(db6, 7 and 8?)
What are the upper nerves of the palate?
- lesser palatine nerve
- Greater palatine nerve
- incisive branch of nasopalatine nerve - exits through nasopalatine foramen
What does the incisive branch of nasopalatine nerve innervate?
palatal gum of incisors and canine
(3-3)
What does the greater palatine nerve supply?
palatal gum of canine, premolars and molars
What does the mandibular nerve lead to?
- Inferior alveolar nerve
- Long buccal nerve
- Mental nerve
- incisive nerve
- Lingual nerve
What teeth does the inferior alveolar nerve supply?
pre molars and molars
(4-8?)
What does the long buccal nerve supply?
Buccal gum of molars, teeth 6-8
What does the mental nerve supply?
Lower lip, chin and buccal gum of incisors, canine and premolars
(1-5)
What does the lingual nerve supply?
Lingual line of all lower teeth, passes along FOM, on the inner surface of mandible, also supplies anterior 2/3rds of tongue and FOM
What lymph nodes are you palpating when doing an extra oral exam?
- Preauricular
- Parotid
- Tonsilar
- Submandibular
- Submental
- Anterior cervical
- Posterior cervical
- Supraclavicular
what does the infraorbital nerve supply?
sensory innervation to lower eyelid, the side of the nose and the upper lip
what are the 3 branches of the maxillary division that provide dental innervation?
- posterior superior alveolar nerve
- middle superior alveolar nerve
- anterior superior alveolar nerve
what does the lesser palatine nerve innervate?
soft palate
what teeth does the incisive nerve supply?
incisors and canines
3-3
what mucosal innervation does the lingual nerve supply?
1-8 on lingual aspect
What is CN I and what does it do?
Olfactory
Smell
What is CN II and what does it do?
Optic
Vision
What is CN III and what does it do?
Oculamotor
Eye movement, pupil dilation
What is CN IV and what does it do?
Trochlear
Vertical eye movement
What is CN V and what does it do?
Trigeminal
Facial sensation
Facial expression
Muscles of mastication
What is CN VI and what does it do?
Abducens
Lateral movement of eyes
What is CN VII and what does it do?
Facial
Taste
Facial expression
What is CN VIII and what does it do?
Auditory
Hearing and balance
What is CN IX and what does it do?
Glossopharyngeal
Sensation and taste from posterior 1/3 tongue
What is CN X and what does it do?
Vagus
Uvula (palate muscles) and swallowing
What is CN XI and what does it do?
Accessory
Head and shoulder movement
What is CN XII and what does it do?
Tongue movement
