Face And Cutaneous Innervation Flashcards by Amanda Pearman

Where are muscles of facial expression located?

In the subcutaneous tissue of the anterior and posterior scalp, face and neck

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Most facial expression muscles attach to:

How do they produce their effects?

Bone or fascia

By pulling the skin

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Muscles of the face act as ____ and ____ that:

Sphincters and dilators

Close and open the orifices

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OINA for frontal belly of occipitofrontalis

OR: Epicranial aponeurosis

INS: Skin and subcutaneous tissue of eyebrows and forehead

NS: Temporal branch of facial nerve

AC: Elevates eyebrows, wrinkles skin of forehead, protracts scalp

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OINA for occipital belly of occipitofrontalis

OR: lateral 2/3 or superior nuchal line

INS: Epicranial aponeurosis

NS: post. Auricular branch of facial nerve

AC: retracts scap, increasing effectiveness of frontal belly

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OINA for orbicularis oculi

OR: Medial orbital margin and lacrimal bone

INS:skin around margin of orbit

NS: zygomatic branch of facial nerve

AC: Closes eyelids: palpebral part does gently; orbital part tightly

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OINA for Orbicularis oris

OR: Medial maxilla and mandible

INS: mucous membrane of lips

NS: Marginal mandibular branch of facial nerve

AC: closes mouth, compresses and protrudes lips

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OINA for buccinator

OR: Alveolar process of maxilla and mandible, pterygomandinbular raphe

INS: Angle of mouth and orbicularis oris

NS: Buccaneers branch of facial nerve

AC: -Presses cheek against molar teeth

Works with tongue to keep food between occlusal surfaces
Active during sucking, whistling and blowing

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OINA for platysma

OR: Subcutaneous tissue over the pect. Major and deltoid muscles

INS: Base of mandible; skin of cheek and lower lip; angle of mouth; orbicularis oris

NS: cervical branch of facial nerve

AC: -Depresses mandible (against resistance)
-Tenses skin of inf. Face and neck

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Most arteries of the face are branches of the:

External carotid arteries

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What is the major arterial supply to the face?

Facial artery

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The facial artery arises from the:

It winds around the:

It enters to the face up to the:

External carotid artery

Inf. Border of the mandible, just anterior to the masseter

Medial angle of the eye

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What are the branches of the facial artery and where do they pass

Superior labial artery (passes to upper lip)

Inf. Labial artery (passes to inf. Lip)

Lateral nasal artery (passes to side of the nose)

Angular artery (supplies medial angle of the eye)

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The facial artery terminates as the:

Angular artery

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The occipital artery arises from the:

External carotid artery

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The occipital artery passes ____ along the:

It distributes to:

Posteriorly

Inf border of the digastric muscle

Scalp of back of the head, as far as vertex

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The posterior auricular passes ____ along the:

It supplies:

Posteriorly

Superior border of the digastric muscle

Auricle and scalp post to auricle

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The superficial temporal artery is a smaller ______ branch of:

Terminal

External carotid artery

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The superficial temporal artery ascends ____ to ear to ____ region and ends in _____ by dividing into ____ and _____ branches

Temporal

Scalp

Frontal and parietal branches

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What does the superficial temporal supply?

Facial muscles and skin of frontal and temporal regions

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The transverse facial artery arises from the ____ artery within the:

Superficial temporal

Parotid gland

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The transverse facial art crosses the face superficial to the ______ and inferior to the:

Masseter

Zygomatic arch

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The transverse facial art supplies:

Parotid gland and duct, masseter muscle and skin of face

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The mental art is a terminal branch of what?

Inferior alveolar artery

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The mental artery emerges from _____ foramen and passes to the:

Mental Chin

What does the mental artery supply?

Facial muscles and skin of chin

The supraorbital art is a terminal branch of what?

Ophthalmic art— a branch of internal carotid artery

The supraorbital artery passes _____ from the ______ foramen

Superiorly Supraorbital

What does the supraorbital artery supply?

Muscle and skin of forehead and scalp

The supratrochlear art is a terminal branch of:

Ophthalmic art— a branch of internal carotid artery

The supratrochlear art passes ____ from the _______ __. It supplies:

Superiorly Supratrochlear notch Muscles and skin of the scalp

The facial vein begins: It descends: It terminates:

At the medial angle of the eye as the angular vein Obliquely post. To facial artery up to the inf margin of mandible where it’s joined by ant branch of the retromandibular vein and form the common facial vein Into the internal jugular vein

What are the tributaries of the facial vein?

Deep facial vein Superior opthalmic vein

The veins of the face have no ___, and communicate with:

Valves Cranial cavity

What does the deep facial vein drain?

The pterygoid venous plexus of the infatemporal fossa

The superior ophthalmic vein communicates with the ____ vein at the medial angle of the ____. It drains into the _____ ___.

Facial Eye Cavernous sinus

What does the superficial temporal vein drain? What are its tributaries?

Drains the forehead and scalp Receives tributaries from the veins of the temple and face

Where does the superficial temporal vein enter the parotid gland?

Near the auricle

What forms the retromandibular vein?

The superficial temporal and maxillary veins

The retromandibular vein descends within the _____ ____, superficial to the ____ ____ ____ and deep to the ___ ___.

Parotid gland External carotid artery Facial nerve

The anterior branch of the retromandibular vein joins the ____ vein to form the:

Facial Common facial vein

The posterior branch of the retromandibular vein joins the ____ _____ vein to form:

Posterior auricular vein External jugular vein (EJV)

The EJV crosses the superficial surface of the ______ muscle to enter the _______ vein in the root of the neck

Sternocleidomastoid Subclavian

What are the cutaneous nerves derived from the ophthalmic nerve? (CN V1)

Supra-orbital Supratrochlear Lacrimal Infratrochlear External nasal

Origin of supraorbital nerve

Terminal branch from bifurcation of frontal nerve, in middle of the orbital roof

The Supra-orbital nerve emerges from the ______ foramen, ascends the ______, breaking into branches

Supraorbital Forehead

What does the supraorbital nerve supply?

Skin and conjunctiva of superior eyelid; skin and pericardium of anterolateral forehead and scalp to vertex

Origin of supratrochlear nerve : Pathway:

Terminal branch from bifurcation of frontal nerve Passes lateral to trochlea and ascending forehead

What does the supratrochlear nerve supply?

Skin and conjunctiva of medial aspect of superior eyelid; skin and pericardium of anteromedial forehead

The lacrimal nerve is a branch of ______. | It runs superolaterally through ______, receiving ________ fibers via a communicating branch from the ________ nerve.

CN V1 Orbit Secretomotor Zygomaticotemporal

Lacrimal nerve supplies what?

Lacrimal gland (secretomotor fibers); small area of skin and conjunctiva of lateral part of superior eyelid

The infratrochlear nerve is one of the terminal branches of _____ nerve, which comes from the _____ nerve.

Nasociliary Ophthalmic

The infratrochlear nerve runs along the _____ wall of the orbit and exits:

Medial Inferior to trochlea

What does the infratrochlear nerve supply?

Skin lateral to roof of nose, skin and conjunctiva of eyelids adjacent to medial angle, and lacrimal sac

The external nasal Nerve is a terminal branch of: It emerges from _____ cavity BY passing between ___ ___ and ___ ___ ____.

Anterior ethmoidal nerve Nasal cavity Nasal bone Lateral nasal cartilage

The external nasal nerve supplies what?

Ala and dorsum of nose

What are the cutaneous nerves derived from maxillary nerve (CN V2)?

Infraorbital Zygomaticofacial Zygomaticotemporal

The infraorbital nerve is a continuation of ______ nerve distal to its entrance into the ___ via the:

Maxillary Orbit Inferior orbital fissure

The infraorbital nerve transverses the _______ _____ and ____ in orbital floor, giving rise to ___ ____ branches; then emerges via ____ foramen, immediately dividing into:

Infraorbital groove and canal Superior alveolar Infraorbital Inferior palpebral, external nasal, superior labial branches

What does the infraorbital nerve innervate

Skin and conjunctiva of inferior eyelid Skin of cheek, lateral nose and nasal septum Skin and organ mucosa of upper lip

Which nerve is the smaller terminal branch of the zygomatic nerve? Which is the larger terminal branch?

Zygomaticofacial Zygomaticotemporal

The zygomaticofacial nerve passes through the _______ canal in the zygomatic bone at the ______ angle of orbit

Zygomaticofacial Inferolateral

Zygomaticofacial nerve supplies:

Skin on prominence of cheek

The zygomaticotemporal nerve sends a communicating branch to the _____ nerve in orbit, then passes to ____ fossa via the _______ canal in zygomatic bone

Lacrimal Temporal Zygomaticotemporal c

What does the zygomaticotemporal nerve supply

Skin overlying anterior part of temporal fossa

Cutaneous nerves derived from the mandibular nerve (CN V3)

Auriculotemporal Buccaneers Mental

The auriculotemporal nerve is found in the ______ fossa via two roots from:

Infratemporal Posterior division of mandibular nerve

The auriculotemporal nerve encircles:

The middle meningeal artery

The auriculotemporal passes posteriorly deep to ______ of _____, and emerges posterior to the _______ joint.

Ramus of mandible Temporomandubular

The auriculotemporal nerve supplies what?

Skin anterior to auricle and posterior two thirds of temporal region Skin of Travis Helix auricle, rook of external acoustic meatus Skin of superior tympanic membrane

Buccal nerve arises in _______ fossa as :

Infratemporal A sensory branch of anterior division of CN V3

The buccal nerve passes between: It emerges anteriorly from: Uniting with:

Two heads of lateral pterygoid muscle Cover of ramus of mandible and masseter Buccal branches of facial nerve

The buccal nerve supplies:

Skin and oral mucusa of cheek (overlying and deep to anterior part of buccinator) Buccal gingiva adjacent to second and third molars

The mental nerve is a terminal branch of _____ ______ nerve

Inferior alveolar nerve (branch of mandibular nerve)

The mental nerve branches from the _____ foramen in anterolateral aspect of:

Mental Body of mandible

The mental nerve supplies:

Skin of chin Oral mucosa of lower lip

Cutaneous nerves derived from anterior rami of cervical spinal nerves

Great auricular Lesser occipital

The great auricular nerve arises from what spinal nerves?

C2 and C3 via cervical plexus

The great auricular neve ascends vertically across _________, posterior to:

Sternocleidomastoid External jugular vein

What does the great auricular nerve supply?

Skin overlying angle of mandible and inferior lobe of auricle

The lesser occipital nerve arises from what spinal nerves?

C2 and C3 via cervical plexus

The lesser occipital nerve follows _____ border of ____, then ascends:

Posterior SCM Posterior to auricle

What does the lesser occipital nerve supply

Scalp posterior to auricle

Cutaneous nerves derived from posterior rami of cervical spinal nerves

Greater occipital nerve

The greater occipital nerve is a branch of:

Posterior ramus of spinal nerve C2

The greater occipital nerve emerges between ____ and ____ ____ inferior, then ____

Axis Obliques capitis Pierces trapezius

What does the greater occipital nerve supply?

Scalp of occipital region

Face And Cutaneous Innervation Flashcards

(87 cards)