The Face Flashcards
pneumonic for remembering cranial nerves
Oh Oh Oh To Touch And Feel Vaginas God Vaginas Are Hot.
Olfactory, Optic, Oculomotor, Trochlear, Trigeminal, Abducens, Facial, Vestibulochoclear, Glossopharyngeal, Vagus, Accessory, Hypoglossal
Pneumonic for remembering component fibers of Cranial nerves
Some say marry money but my brother says big breast matter most
What is the facial muscle that surrounds the eye? what are the two parts?
Orbicularis oculii- orbital part and palpebral (eyelid) parts
What is the facial muscle that surrounds the mouth?
Orbicularis Oris - used to help form words and hold mouth shut when you chew.
What is the muscle that helps suck and blow and define the volume of your mouth? What important vessel pierces the muscle?
The Buccinator, the parotid duct
which veins join together to form the retromandibular vein?
The maxilary (Coming via pterigoid plexus) and the superficial temporal
Which veins join to form the common facial vein?
The facial vein and the anterior division of the retromandibular vein
What two veins join to form the external jugular vein?
The posterior branch of the retromandibular and the posterior auricle veins
What are some possible paths tha would allow the spread of infection from the superficial face into the brain?
The angular vein has connections with the superior opthalmic, which connects to coronary sinus which connects to dural venous sinus = meninges. The deep facial vein connects to the pterigoid plexus which connects to the inferior opthalmic which connects to the coronary sinus etc.
What are the branches of the facial nerve?
Posterior Auricle, Temporal, Zygomatic, bucal, marginal mandibular, cervical
What innervates the parotid gland?
Glossopharyngeal nerve (CN IX) via the auriculotemporal branch of V3
What are the three divisions of trigem and what foramen do they exit on the face?
V1 - (opthalmic) supratrochlear nerves exit via the supraorbital foramen. V2 (maxilary)- Infraorbital nerve exits via the infraorbital foramen. V3 (mandibular)- Mental Nerve exits via the mental foramen
What is the foramen that the facial nerve exits before entering the parotid gland?
the stylomastoid foramen
What are some tell tale signs of bells palsy?
Lost of blink reflex and unilateral facial paralysis. crocodile tears.
What are the boundaries of the infratemporal fossa?
Anteriorly, the posterior border of the maxila, laterally the ramus of the mandible, posteriorly the mastoid and styloid processes of the temporal bone, and medially the leteral pterygoid plate
What is contained within the infratemporal fossa?
Lateral and medial pterygoid muscles, maxillary artery, pterygoid venous plexus, and the mandibular division of trigem (V3)
What are the four muscles of mastication? Which is the only one involved in opening the mouth?
Masseter, temporalis, lateral and medial pterygoid
Lateral pterygoid is the only one that is involved in opening mouth.
What is one of the most important branches of the maxillary artery, what does it supply, and how does it get there?
The middle meningeal artery travels through the foramen spinosum to supply the dura of the brain, injury can cause epidural hematoma via fracture of the squamous portion of the temporal bone. Blood could also drain through the foramen magnum and compress the brain stem
What are the tiny connections between the pterygoid venous plexus and the caverous sinus and deep facial veins called?
emissary veins.
How does the mandibular division of trigem make its way into the infratemporal fossa? What is unique about this division?
The foramen ovale. It has MOTOR fibers.
What are all of the muscles of mastication innervated by?
CN V3
What other sensory does CN V3 supply?
Dermatome of CN V3, mucosa lining of inside of the cheek, the teeth and gingiva of the mandible, anterior 2/3 of the tongue (pain) and capsule of the parotid gland.
How is the CN V3 involved in taste?
It carries taste sensation from the facial nerve (CN VII) via the corda tympani along its own lingual nerve to the anterior 2/3 of the tongue
When the jaw is anteriorly dislocated, the condyle of the mandible becomes struck anterior to what?
The articular tubercle of the temporal bone.
How is CN V3 involved in secretomotor fn?
the auriculotemporal branch receives parasympathetics from CN IX that innervate the parotid. The lingual receives parasympathetics from CN VII that innervate the sublingual and submandibular glands.
