Anatomy Of Mastication Flashcards
What does the trigeminal nerve supply motor innervation to?
Muscles of mastication
Where does the ophthalmic nerve enter the orbit?
Superior orbital fissure
What are the 3 branches of the ophthalmic nerve?
Lacrimal
Frontal
Nasociliary branches
What is the first branch of the ophthalmic nerve and where does it branch?
Tentorial branch
Before entering the superior orbital fissure
What nerve supplies the meninges?
Tentorial branch of the ophthalmic nerve
What are the 2 branches of the frontal nerve?
Supraorbital nerve
Supratrochlear nerve
What trigeminal nerves supply the forehead?
The 2 branches of the frontal nerve
- Supraorbital nerve
- Supratrochlear nerve
What branches are shown (A and B) and what nerve do they branch from?
A - suprafrontal nerve
B - Supratrochlear nerve
Branch from the frontal nerve (ophthalmic nerve branch)
Name the branches of the ophthalmic nerve top to bottom?
Top - frontal
Middle - lacrimal
Bottom - nasociliary
What does the lacrimal nerve supply?
Lacrimal gland and associated skin around nose
Where do the branches off the nasociliary nerve go? and what do they supply?
Into the nasal cavity
Upper and anterior part of the nasal cavity
What does the nasociliary nerve supply?
Part of the root of the nose
What nerve supplies here?
Nasociliary nerve
What is this?
Ciliary ganglion
What is the role of the ciliary ganglion?
Parasympathetic supply to the sphincter papillae (contracts pupil) and ciliary muscles (accommodates for near vision)
What does the maxillary nerve pass into?
The pterygopalatine fossa through the firmament rotundum
What branches does the maxillary nerve give off in the cranial fossa?
Meningeal
What branches does the maxillary nerve give off in the pterygopalatine fossa?
Post. Sup. Alveolar
Zygomatic
Ganglion is
Infraorbital
What does the posterior superior alveolar nerve supply?
Maxillary molars
What are these branches called and what nerve do they stem from?
Pterygopalatine ganglion
Infraorbital branch
What is the first branch of the mandibular nerve?
Meningeal branch
After the mandibular nerve gives off the meningeal branch, what does it divide into?
Anterior and posterior branches
Is the anterior branch of the mandibular nerve, Mainly motor of sensory?
Mainly motor
What is the 1 sensory branch of the anterior branch of the mandibular nerve?
Buccal
What muscles does the anterior branch of the mandibular nerve supply?
Muscles of mastication
Name the branches of the anterior mandibular nerve
Masseteric
Ant. & Post. deep temporal Medial pterygoid
Lateral pterygoid
Buccal
What are the posterior branches of the mandibular nerve?
Auriculotemporal
Lingual
Inferior alveolar
Mylohyoid
What is the motor branch of the posterior mandibular nerve?
Mylohyoid
What does the Mylohyoid innervate?
The Mylohyoid
Anterior belly of the digastric
Name mandibular nerves
What nerves supply the lower part of the mandible?
Cervical plexus
C1-C3