Exam II Lecture 5 Superficial and Deep Face Flashcards
Where do all nerves to muscle of facial expression emerge?
Stylomastoid foramen
What structure do the nerves of facial expression go through after they emerge from the stylomastoid foramen?
Parotid gland
What are the five major motor branches of VII?
Temporal, zygomatic, buccal, mandibular, cervical
Mnemonic: To zanzibar by motor car
Others: Auricular, Occipital, Suprahyoid (to stylohyoid, posterior belly of the digastric muscle)
From what nucleus do motor branchial fibers of VII emerge?
Motor Nucleus of VII (Facial Motor Nucleus)
What kind of nerve fibers of V emerge onto face?
General sensory
From what nuclei do trigeminal general sensory fibers emerge?
Depends on modality
Mesencephalic - muscle proprioception
Pontine Trigeminal - touch
Nucleus of spinal tract - pain temperature
What trigeminal sensory nucleus provides fibers for muscle proprioception?
Mesencephalic
What trigeminal sensory nucleus provides fibers for touch?
Pontine trigeminal
What trigeminal sensory nucleus provides fibers for pain and temperature?
Nucleus of spinal tract
What general sensory branches does V1 give rise to?
Lacrimal, frontal, nasociliary
What two general sensory branches arise from the frontal nerve?
Supraorbital and supratrochlear
What two general sensory branches arise from the nasociliary nerve?
Infratrochlear and Anterior ethmoidal
What nerve does the anterior ethmoidal nerve give rise to?
External nasal
What are the five terminal branches of V1 that emerge on the face?
Lacrimal, Supraorbital, Supratrochlear, Infratrochlear, and External nasal
What two branches does V2 give rise to that in turn give rise to other branches that emerge on the face?
Zygomatic and Infraorbital
Where does V2 branch into the zygomatic nerve?
Pterygopalatine fossa.
Where does the zygomatic nerve (V2) branch? What two branches does the zygomatic nerve give rise to?
Zygomatico-orbital foramen.
Zygomaticofacial and zygomatico temporal nerves
What are the three terminal branches of the infraorbital nerve (V2)?
Inferior palpebral
Lateral nasal
Superior labial
V3 gives rise to what branches (besides IA) in the infratemporal fossa that give rise to facial sensation?
Buccal (anterior trunk)
Auriculotemporal (posterior trunk)
What is the terminal branch of the IA that innervates the face?
Mental nerve
T/F Both external and internal carotid give rise to arteries that supply the face
True
Which artery give rise to the ophthalmic artery?
Internal carotid
What facial blood supply arteries arise directly from the ophthalmic artery?
Lacrimal, Supraorbital, supratrochlear, dorsal nasal
What branch arises from the lacrimal artery? Is it a terminal facial branch?
Zygomatic.
No.
What terminal branches arise from the zygomatic artery?
Zygomaticofacial
Zygomaticotemporal
Does the zygomatic artery and zygomatic nerve follow the same path?
No. The zygomatic nerve comes from the V2 and the zygomatic artery comes from the ophthalmic artery (from the orbit)
At what point do the zygomaticofacial and zygomaticotemporal arteries and nerves begin to run along side each other?
After passing through the zygomatico orbital foramen
Which facial terminal branch of the ophthalmic artery accompanies the infratrochlear nerve?
Dorsal nasal (this is not typical, typically arteries follow nerves of the same name)
Blood supply to the face comes from which three different arterial systems?
Internal carotid, external carotid, and maxillary
What two direct branches of the external carotid give rise to facial blood supply? Which other branch indirectly gives rise to blood supply to the face from the external carotid?
Facial and Superficial temporal artery.
Maxillary artery is indirect.
What are the eight branches of the facial artery?
Ascending palatial Tonsillar Glandular Sub mental Inferior labial Superior labial Lateral nasal Angular
What is the branch of the superficial temporal artery that runs across the face?
Transverse facial
T/F The maxillary artery gives blood supply to both the maxillary and mandibular regions?
True
What are the three branches given off by the maxillary artery that have branches that eventually emerge onto the face?
Inferior alveolar, buccal and infraorbital arteries
Does the inferior alveolar artery emerge directly unto the face?
No. It give rise to the mental branch that emerges onto the face via the mental foramen
From where does the maxillary artery enter the infratemporal fossa?
From the external carotid deep to the parotid gland and its junction with the SCM
From where does the maxillary artery enter the pterygopalatine fossa?
Infratemporal fossa
What does the maxillary artery continue as after it enters the pterygopalatine fossa?
Infraorbital artery
What three branches does the infraorbital artery give rise to on the face?
Inferior palpebral
Lateral nasal
Superior labial
Which two arteries both give rise to a lateral nasal and a superior labial artery?
Infraorbital artery (of maxillary artery) Facial artery (of external carotid that comes up from the neck area).
Where does the maxillary artery that comes via the pterygopalatine fossa and the facial artery that comes from below the mandible both arise?
External carotid?
Which facial blood supply artery arises from the internal carotid artery?
Ophthalmic via its branches emerges on the face
Which of the following arteries emerge unto the face?Ophthalmic—>Lacrimal—>Zygomatic—> zygomaticofacial(ZF) and zygomaticotemporal(ZT)
Lacrimal
ZF and ZT
The ophthalmic and zygomatic do not actually emerge onto the face.
