Module 1 Flashcards
The trigeminal nerve is the ———
Cranial nerve
Bulkiest (largest)
What is the name of cranial nerve number 5
Trigeminal Nerve
The trigeminal nerve has a small
——-root and a large ——– root
Motor
Sensory
What does the trigeminal nerve innervate?
Skin of face
Teeth, bone, and soft tissues of the oral cavity
How many divisions does the trigeminal nerve have?
3
What are the 2 main types of injections given orally?
Pulpal
Infiltration
The motor root of the trigeminal nerve supplies what anatomical landmarks?
Muscles of mastication
What are the 4 main muscles of mastication?
Masseter
Temporalis
Medial pterygoid
Lateral pterygoid
The sensory root of the trigeminal nerve supplies skin of the face and oral cavity except —— and ——–
Pharynx
Base of tongue
Name the 3 divisions of the trigeminal nerve?
1- ophthalmic
2- maxillary
3- mandibular
The ophthalmic division exits the cranial cavity through?
Superior orbital fissure
VI only has ——- abilities
Sensory
What are the 3 divisions of the ophthalmic division of the trigeminal nerve?
Nasociliary
Frontal
Lacrimal
The maxillary division of the trigeminal nerve exits the cranial cavity through?
Foramen rotundum
Which division of the trigeminal nerve is the smallest?
VI- ophthalmic
What nerve (branch) of VII is located in the pterygopalatine fossa?
PSA-
posterior superior alveolar nerve
What nerve (branch) of VII is located “inside” the infraorbital canal?
MSA and ASA
The MSA and ASA form a —– —– or nerve network?
Dental plexus
Where is the insertion point for a PSA shot?
Distal buccal cusp of 2nd molar at the height of the mucobuccal fold at the root tip
You point the needle in what direction when giving a PSA shot?
45 degree angle
We are aiming for what landmark when giving a PSA shot?
Infratemporal fossa
Why do you get a positive aspiration more often on a PSA injection?
Pterygoid plexus is located close to injection site
The mandibular division of the trigeminal nerve exits the cranial cavity through?
Foramen ovale
The posterior branch of the mandibular division of the trigeminal nerve contains what 4 nerves?
Auriculotemporal
Lingual
Inferior alveolar
Mylohyoid
What are the 2 branches of the IA nerve?
Mental
Incisive
What is the mental nerve/where is it located?
The part of the IA that exits the mental foramen
What is the incisive nerve/where is it located
It is the IA (inside the bone) from the mental foramen forward
The Inferior Alveolar nerve enters the mandible through?
Mandibular foramen
The mandibular foramen can have a — to —mm height difference in location?
1-19
The mandibular foramen is protected by what?
Lingula
Why does your tongue go numb?
Lingual nerve gets affected when giving an IA shot
Why does the floor of your mouth go numb?
The mylohyoid nerve is affected when doing an IA shot
The maxillary bone is more ——,
—– and is made up of —— bone?
Vascular, porous,
Cancellous
The mandibular bone is the —– and —— in the face and is made up of —— bone?
Largest , strongest
Cortical
