104 terms

Head and Neck Final - Face and Scalp

Dr. Mercy Navis
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Scalp
Extends from superior nuchal lines on occipital bone to supra-orbital margins of frontal bone?
Skin
Thin except in occipital region, containing many sweat and sebaceous glands and hair follicules?
Connective tissue
Forms a think, dense, richly vascularized, subcutaneous layer that is well supplied with
cutaneous nerves?
Aponeurosis
Serves as attachment for muscle bellies covering from the forehead to occiput (occipitofrontalis)?
Pericranium
Dense layer of connective tissue, forms the external periosteum of neurocranium?
Supraorbital nerve
Supplies skin and pericranium of anteromedial forehead to vertex?
Supratrochlear nerve
Supplies skin and pericranium of anteromedial forehead?
Zygomaticotemporal nerve
Supplies hairless skin and anterior part of temporal fossa?
Auriculotemporal nerve
Supplies skin of posterior 2/3 of temporal region?
Motor nerve
Temporal branch of facial nerve supplies frontalis muscle?
Great auricular nerve, lesser occipital nerve
Arises from ventral/anterior rami of C2 C3 via cervical plexus?
Skin overlying angle of mandible, inferior lobe of auricle and parotid sheath
Great auricular nerve supplies?
Greater occipital nerve
Arises from dorsal/posterior ramus of C2 spinal nerve?
Third occipital nerve
Supplies lower occipital region of scalp and suboccipital regions?
Motor nerve
Posterior auricular nerve, branch of facial nerve, supplies occipitalis muscle?
Supratrochlear artery,
supraorbital artery
The terminal branch of ophthalmic artery from internal carotid artery?
Superficial temporal artery
Smaller terminal branch of external carotid artery?
Occipital artery
Supplies posterior part of scalp?
Posterior auricular artery
Branch of external carotid artery?
Supratrochlear vein
Unites with supraorbital vein and forms angular vein?
Facial vein
Angular vein continues as?
Superficial temporal vein
Unites with maxillary vein and forms retromandibular vein?
Occipital vein
Drains into suboccipital venous plexus?
Posterior auricular vein
Joins with posterior division of retromandibular vein and forms the external jugular vein?
Into the skin and subcutaneous tissue of eyebrows and forehead
Insertion of frontal belly?
Temporal branch of facial nerve
Nerve supply of frontal belly?
Elevates eyebrows and wrinkles skin of forehead
Action frontal belly?
From lateral 2/3 of superior nuchal line
Origin occipital belly?
Posterior auricular nerve, branch of facial nerve
Nerve supply occipital belly?
Loose connective tissue layer of scalp is danger area of scalp b/c pus or blood spreads easily, infection in this layer can also pass into cranial cavity through emissary veins
Scalp infections?
Ducts of sebaceous glands associated with hair follicles in scalp may become obstructed, resulting in retention of secretions and formation of ________________
Sebaceous cysts?
Sometimes after difficult birth bleeding occurs b/t baby's pericranium and
calvaria usually over one parital bone, blood becomes trapped in area causing ________________
Cephalhematoma?
Mesoderm in second pharyngeal arches
All muscles of facial expression develop from?
The occipitofrontalis is a flat muscle with occipital and frontal bellies
Muscles of forehead?
Corrugators supercilli
Muscle of eyebrows?
Medial end of superciliary arch
Origon Corrugator supercilli?
Temporal branch of facial nerve
Nerve supply Corrugator supercilli?
Skin of inferior forehead between eyebrows
Insertion of procerus and transverse part of nasalis?
Zygomatic branch of facial nerve
Nerve supply procerus and transverse part of nasalis?
Major alar cartilage
Insertion of alar part of nasalis and levator labii superioris alaque nasi?
Zygomatic branch of facial nerve
Nerve supply of alar part of nasalis and levator labii superioris alaque nasi?
Buccal branch of facial nerve
Nerve supply orbicularis oris?
Infraorbital margin of maxilla
Origin of levator labii superioris?
Buccal branch facial nerve
Nerve supply?
Anterior aspect zygomatic bone
Origin zygomaticus minor?
Mandible, alveolar process of maxilla and mandible, pterygomandibular
raphe
Origin buccinators?
Lateral aspect of zygomatic bone
Origin zygomaticus major?
Elevates labial commisure bilaterally to smile (happiness)
Action zygomaticus major?
Canine fossa of maxilla
Origin levator anguli oris?
From parotid fascia
Origin risorius?
Marginal mandibular branch of facial nerve
Nerve supply?
Angle of mouth
Insertion depressor anguli oris?
Marginal mandibular branch of facial nerve
Nerve supply depressor anguli oris?
Retracts (depresses) and everts lower lip (sadness)
Action depressor anguli oris?
Anterolateral body of mandible
Origin depressor labii inferioris?
Marginal mandibular branch of facial nerve
Nerve supply depressor labii inferioris?
Incisive fossa of body of mandible
Origin mentalis?
Marginal branch of facial nerve
Nerve supply mentalis?
Base of mandible
Insertion platysma?
Cervical branch of facial nerve
Nerve supply platysma?
Tenses skin of inferior face and neck (convey tension and stress)
Action platysma?
Medial palpebral ligament, lacrimal bone
Origin orbicularis oculi?
Superior and inferior tarsal plates
Insertion orbicularis oculi?
Trigeminal nerve is sensory supply
Nerves of face?
Facial nerve
Supplies all the muscles of facial expression?
Trigeminal nerve
Supplies skin of major part of face by its three major branches?
Supraorbital nerve
Supplies skin and pericranium of anterolateral forehead and scalp to vertex?
Supratrochlear nerve
Supplies skin and conjunctiva of medial aspect of upper eyelid?
Lacrimal nerve
Supplies lacrimal gland?
Intratrochlear nerve
Supplies skin lateral to root of nose?
Infraorbital nerve
Skin and conjunctiva of inferior eyelid, lateral nose, nasal septum and mucosa of superior lip?
Zygomaticofacial nerve
Supplies skin on prominence of cheek?
Auriculotemporal nerve
Encircles middle meningeal artery?
Buccal nerve
Sensory branch of anterior trunk?
Temporal branch
Supplies auricularis superior, anterior, frontal belly of occipitofrontalis and superior part
orbicularis oculi?
Zygomatic branch
Supplies inferior part of orbiucularis oculi and other facial muscles inferior to orbit?
Buccal branch
Supplies buccinators, upper part of orbicularis oris and inferior fibers of levator labii superioris?
Marginal mandibular branch
Risorius and muscles of lower lip and chin?
Cervical branch
Supplies platysma?
Facial artery
Courses over face to medial angle of eye and joins dorsal nasal branch of ophthalmic artery?
Angular artery
Distal to lateral nasal branch, terminal of facial artery is called?
Superficial temporal artery
Smaller terminal branch of external carotid artery?
Transverse facial artery
Supplies parotid gland, parotid duct, masseter and skin of face?
Supratrochlear vein
Communicates with supraorbital vein and forms angular vein?
Facial vein
Forms the common facial vein which joins the internal jugular vein?
Communications of facial vein
Deep facial connects to pterygoid venous plexus, superior ophthalmic vein connects it to
cavernous sinus?
Retromandibular vein
Unites with posterior auricular vein and forms external jugular vein?
Injury to facial nerve or its branches produces paralysis of some of
facial muscles on affected side (bells palsy)
Paralysis of facial muscles?
Careless injection could result in passage of anesthetic fluid into orbit
causing temporary paralysis of extraocular muscles
Infraorbital nerve block?
Sensory disorder of sensory root of trigeminal nerve
Trigeminal neuralgia?
Cause wide spread anesthesia involving face, except for an area
around angle of mandible, the cornea, and conjunctiva
Lesions of trigeminal nerve?
Ophthalmic nerve most commonly affected
Herpes zoster infection of trigeminal ganglion?
Most common Nontraumatic cause of facial paralysis is inflammation of nerve near stylomastoid foramen, produces edema and compression of nerve in facial canal
Injuries of facial nerve?
Loss of motor functions, gustatory (taste) function, autonomic functions
Lesions near origin of facial nerve from pons of proximal to origin of greater petrosal nerve
result in?
Usually involves lower lip
Squamous cell carcinoma of lip?
Parotid gland
Has pure serous secretion that empties into vestibule of oral cavity, enclosed within a tough,
unyielding fascial capsule, the parotid sheath derived from investing layer of deep cervical
fascia?
Parotid duct
Pierces buccinator and enters oral cavity through small orifice opposite to second maxillary
molar tooth?
Parotid plexus of facial nerve and its branches, retromandibular vein, external carotid artery, parotid lymph nodes
Structures embedded within the substance of the parotid gland?
Ariculotemporal
nerve
Supplies sensory fibers to the parotid sheath as well as the overlying skin?
Great auricular nerve
Supplies sensory fibers to the parotid sheath as well as the overlying skin?
Glossopharyngeal nerve
Supplies presynaptic secretory fibers to the otic ganglion?
Surgical excision of the parotid gland (parotidectomy) is often
performed as part of the treatment
Parotidectomy?
May become infected by infectious agents that pass through the bloodstream, as occurs in mumps, an acute communicable viral disease, or infection of the
gland causes inflammation (parotiditis) and swelling of the gland
Infection of parotid gland?
May be blocked by a calcified deposit called a sialolith or calculus, the resulting pain in the parotid gland is made worse by eating
Blockage of parotid duct?