Face and orbit

Question 1

Answer 1

Facial Artery

It is embedded in a groove on the under surface of the submaxillary gland. It then curves upward over the body of the lower jaw

Branches of the right and left facial arteries anastomose freely with
one another as well as with other arteries supplying the face.

Question 2

Answer 2

facial artery

goes in groove of submandibular, lingual artery does not!

Branches of the right and left facial arteries anastomose freely with
one another as well as with other arteries supplying the face.

Question 3

Answer 3

Masseter Muscle

goes from zygomatic to lateral part of mandible

Question 4

Answer 4

Masseter Muscle

goes from zygomatic to lateral part of mandible

Question 5

what is this what intiatiates secretory activity here?

Answer 5

Parotid Gland

the secretory activity of the parotid is initiated by
parasympathetic fibers originating from the glossopharyngeal nerve

Question 6

Answer 6

Buccinator muscle

posteriro to the memaster. The fibers converge toward the angle of the mouth, where the central fibers intersect each other. different than the memsater which runs vertically.

Question 7

what is this?

where does it receive fibers from?

Answer 7

Submandibular Gland

receives secretomotor fibers from

parasymps mandibular branch of trigeminal (v3) and via the chorda tympani, a branch of the facial nerve

Question 8

Answer 8

superficial temporal artery

the smaller of two terminal branches that bifurcate superiorly from the external carotid. Based on its direction, the superficial temporal artery appears to be a continuation of the external carotid whcih travels under the parotid

Question 9

vein running with the temporal artery

Answer 9

temporal vein

eventually connected to both the external and intenral jugular veins which lioe on top of carotid

The superficial temporal vein joins the maxillary vein to form the retromandibular vein.

Question 10

Answer 10

Temporalis Muscle

Question 11

Answer 11

Temporal branch of facial nerve

• Ten Zebras Bit My Clavicle*
• Temporal, Zygomatic, Buccal, Masseteric, Cervical*

Question 12

Answer 12

buccal branch of facial nerve

• Ten Zebras Bit My Clavicle*
• Temporal, Zygomatic, Buccal, Masseteric, Cervical*

Question 13

Answer 13

zygomatic branch of facial nerve

Ten Zebras Bit My Clavicle

Temporal, Zygomatic, Buccal, Masseteric, Cervical

Question 14

Answer 14

mandibular branch of facial nerve

Ten Zebras Bit My Clavicle

Temporal, Zygomatic, Buccal, Masseteric, Cervical

Question 15

Answer 15

cervical branch of facial nerve

Ten Zebras Bit My Clavicle

Temporal, Zygomatic, Buccal, Masseteric, Cervical

Question 16

Answer 16

Supraorbital nerve (and supratrochlear?)

lateral to the supratrochlear nerve

terminal SENSORY branch of frontal nerve of the ophthalmic nerve, Cr. V 1 of trigeminal

Question 17

Answer 17

infraorbital nerve

The infraorbital nerve, the SENSORY cutaneous termination of the maxillary nerve, Cr. V 2,

exits the infraorbital foramen to supply the skin of the
lateral nose, lower eyelid, upper lip and lateral face.

Question 18

Answer 18

mental nerve

mandibular division of the trigeminal nerve (CN V).

Question 19

artery or vein that is formed by two other structures from the face

Answer 19

Common Facial Vein

The anterior division of the retromandibular vein
joins the facial to become the common facial vein.

drains into INTERNAL jugular

Question 20

Answer 20

facial nerve exiting the Stylomastoid Foramen

SVE – (branchial) muscles of facial expression
GVE - lacrimal, submandibular, sublingual glands (PNS)

SA - inner side of external ear

SA - taste to the anterior 2/3 of the tongue (NTS)

GVA - nasal/oral sensation

Question 21

Answer 21

Frontal Nerve

The frontal nerve is the largest branch of the ophthalmic nerve(V1) of trigeminal nerve (V)

branches into supraorbital (lateral) and supratrochlear

Question 22

Answer 22

Supraorbital Nerve

branch of the frontal nerve, off of the opthlamic (v1), off of the trigeminal nerve

innervates: skin over the medial aspect of the nose and forehead

Question 23

Answer 23

Levator Palpebrae Superioris

muscle directly under the frontal nerve

Question 24

Answer 24

Superior Oblique Muscle

one view

this is past the trochlea

Question 25

Answer 25

Superior Oblique Muscle originating in the upper, medial side of the orbit innervated by trochlear nerve (cn 4)

Question 26

nerve going to top muscle on medial side

Answer 26

trochlear nerve cn 4 goes into superior oblqiue

Question 27

Answer 27

trochlea pulley for the superior oblqieu muscles

Question 28

muscle underneath top muscle attaches to eyeball

Answer 28

Superior Rectus (2) below the l levator palpebrae superioris and unlike the levator palpebrae superioris, actually attaches to the eye itself

Question 29

Answer 29

latera rectus

Question 30

Answer 30

superior rectus

Question 31

Answer 31

levator palpebrae superioris muscle

Question 32

Answer 32

inferior oblqiue

Question 33

Answer 33

tendon of levator palpebrae superioris muscle

Question 34

Answer 34

belly of superiro oblqique muscle

Question 35

Answer 35

**lacrimal gland** is **lateral** parasym secretomor innervagtion from: 1. **greater petrosal nerve** of facial nerve 2. **zygomatic nerve** of maxillary nerve or V2 (branch of trigeminal nerve)

Question 36

Answer 36

medial rectus \*on same side as superior oblqiue

Question 37

Answer 37

lateral rectus

Question 38

describe the course of the occulomotor nerve

Answer 38

occulomotor nerve It enters the orbit via the superior orbital fissure and controls most of the eye's movements, including constriction of the pupil and maintaining an open eyelid by innervating the levator palpebrae superioris muscle innervates: 1. p**arasympathetic innervation** of the constrictora pupillae and ciliary muscles of medial rectus, inferior rectus, inferior oblqiue, superior rectus 2. somatic motor component of CN III also innervates the levator palpebrae superioris muscles bilaterally. These muscles elevate the upper eyelids. sx of lesion could be

Question 39

going to muscle on lateral surface

Answer 39

Abducens Nerve goes to the lateral rectus

Question 40

Answer 40

. The anterior ethmoidal branch of nasociliary nerves continues, entering the nasal cavity where it is sensory to the mucosa.

Question 41

Answer 41

Identify the nasociliary nerve . This nerve can be found running obliquely toward the medial wall of the orbit, passing between the superior oblique muscle and the medial rectus muscle.

Question 42

what is 7

Answer 42

the nasociliary nerve running between the medial rectus and the superior oblqiue

Question 43

Answer 43

optic nerve entirely sensory

Question 44

Answer 44

Superior Ophthalmic Vein * begins at the inner angle of the orbit in a vein named the nasofrontal which communicates anteriorly with the angular vein;* * ends in the cavernosa sinus* * travels with opthalmic artery* important connections: facial vein via the supraorbital vein

Question 45

describe how to find the opthalamic nerve or the v1 branch of trgeminal

Answer 45

1. identify frontal nerve 2. trace it to where it birufcates should be between the trochlear and the occulomotor

Question 46

Answer 46

trochlear nerve

Question 47

Answer 47

abduscens

Question 48

what berve is being compressed by intenral carotid

Answer 48

abduscens

Question 49

7 and 8 going medially

Answer 49

ethmoidal branch of nasociliary nerve

Question 50

14 nerve

Answer 50

lacrimal gland nerve