Exam II Lecture 5 Superficial and Deep Face

Question 1

Where do all nerves to muscle of facial expression emerge?

Answer 1

Stylomastoid foramen

Question 2

What structure do the nerves of facial expression go through after they emerge from the stylomastoid foramen?

Answer 2

Parotid gland

Question 3

What are the five major motor branches of VII?

Answer 3

Temporal, zygomatic, buccal, mandibular, cervical
Mnemonic: To zanzibar by motor car

Others: Auricular, Occipital, Suprahyoid (to stylohyoid, posterior belly of the digastric muscle)

Question 4

From what nucleus do motor branchial fibers of VII emerge?

Answer 4

Motor Nucleus of VII (Facial Motor Nucleus)

Question 5

What kind of nerve fibers of V emerge onto face?

Answer 5

General sensory

Question 6

From what nuclei do trigeminal general sensory fibers emerge?

Answer 6

Depends on modality
Mesencephalic - muscle proprioception
Pontine Trigeminal - touch
Nucleus of spinal tract - pain temperature

Question 7

What trigeminal sensory nucleus provides fibers for muscle proprioception?

Answer 7

Mesencephalic

Question 8

What trigeminal sensory nucleus provides fibers for touch?

Answer 8

Pontine trigeminal

Question 9

What trigeminal sensory nucleus provides fibers for pain and temperature?

Answer 9

Nucleus of spinal tract

Question 10

What general sensory branches does V1 give rise to?

Answer 10

Lacrimal, frontal, nasociliary

Question 11

What two general sensory branches arise from the frontal nerve?

Answer 11

Supraorbital and supratrochlear

Question 12

What two general sensory branches arise from the nasociliary nerve?

Answer 12

Infratrochlear and Anterior ethmoidal

Question 13

What nerve does the anterior ethmoidal nerve give rise to?

Answer 13

External nasal

Question 14

What are the five terminal branches of V1 that emerge on the face?

Answer 14

Lacrimal, Supraorbital, Supratrochlear, Infratrochlear, and External nasal

Question 15

What two branches does V2 give rise to that in turn give rise to other branches that emerge on the face?

Answer 15

Zygomatic and Infraorbital

Question 16

Where does V2 branch into the zygomatic nerve?

Answer 16

Pterygopalatine fossa.

Question 17

Where does the zygomatic nerve (V2) branch? What two branches does the zygomatic nerve give rise to?

Answer 17

Zygomatico-orbital foramen.

Zygomaticofacial and zygomatico temporal nerves

Question 18

What are the three terminal branches of the infraorbital nerve (V2)?

Answer 18

Inferior palpebral
Lateral nasal
Superior labial

Question 19

V3 gives rise to what branches (besides IA) in the infratemporal fossa that give rise to facial sensation?

Answer 19

Buccal (anterior trunk)

Auriculotemporal (posterior trunk)

Question 20

What is the terminal branch of the IA that innervates the face?

Answer 20

Mental nerve

Question 21

T/F Both external and internal carotid give rise to arteries that supply the face

Answer 21

True

Question 22

Which artery give rise to the ophthalmic artery?

Answer 22

Internal carotid

Question 23

What facial blood supply arteries arise directly from the ophthalmic artery?

Answer 23

Lacrimal, Supraorbital, supratrochlear, dorsal nasal

Question 24

What branch arises from the lacrimal artery? Is it a terminal facial branch?

Answer 24

Zygomatic.

No.

Question 25

What terminal branches arise from the zygomatic artery?

Answer 25

Zygomaticofacial | Zygomaticotemporal

Question 26

Does the zygomatic artery and zygomatic nerve follow the same path?

Answer 26

No. The zygomatic nerve comes from the V2 and the zygomatic artery comes from the ophthalmic artery (from the orbit)

Question 27

At what point do the zygomaticofacial and zygomaticotemporal arteries and nerves begin to run along side each other?

Answer 27

After passing through the zygomatico orbital foramen

Question 28

Which facial terminal branch of the ophthalmic artery accompanies the infratrochlear nerve?

Answer 28

Dorsal nasal (this is not typical, typically arteries follow nerves of the same name)

Question 29

Blood supply to the face comes from which three different arterial systems?

Answer 29

Internal carotid, external carotid, and maxillary

Question 30

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?

Answer 30

Facial and Superficial temporal artery. | Maxillary artery is indirect.

Question 31

What are the eight branches of the facial artery?

Answer 31

``` Ascending palatial Tonsillar Glandular Sub mental Inferior labial Superior labial Lateral nasal Angular ```

Question 32

What is the branch of the superficial temporal artery that runs across the face?

Answer 32

Transverse facial

Question 33

T/F The maxillary artery gives blood supply to both the maxillary and mandibular regions?

Answer 33

True

Question 34

What are the three branches given off by the maxillary artery that have branches that eventually emerge onto the face?

Answer 34

Inferior alveolar, buccal and infraorbital arteries

Question 35

Does the inferior alveolar artery emerge directly unto the face?

Answer 35

No. It give rise to the mental branch that emerges onto the face via the mental foramen

Question 36

From where does the maxillary artery enter the infratemporal fossa?

Answer 36

From the external carotid deep to the parotid gland and its junction with the SCM

Question 37

From where does the maxillary artery enter the pterygopalatine fossa?

Answer 37

Infratemporal fossa

Question 38

What does the maxillary artery continue as after it enters the pterygopalatine fossa?

Answer 38

Infraorbital artery

Question 39

What three branches does the infraorbital artery give rise to on the face?

Answer 39

Inferior palpebral Lateral nasal Superior labial

Question 40

Which two arteries both give rise to a lateral nasal and a superior labial artery?

Answer 40

``` Infraorbital artery (of maxillary artery) Facial artery (of external carotid that comes up from the neck area). ```

Question 41

Where does the maxillary artery that comes via the pterygopalatine fossa and the facial artery that comes from below the mandible both arise?

Answer 41

External carotid?

Question 42

Which facial blood supply artery arises from the internal carotid artery?

Answer 42

Ophthalmic via its branches emerges on the face

Question 43

Which of the following arteries emerge unto the face?Ophthalmic--->Lacrimal--->Zygomatic---> zygomaticofacial(ZF) and zygomaticotemporal(ZT)

Answer 43

Lacrimal ZF and ZT The ophthalmic and zygomatic do not actually emerge onto the face.