Scalp and Superficial Face Flashcards
What are the five layers of the scalp?
Skin
Connective tissue
Aponeurosis
Loose connective tissue
Pericranium
What is the most vascularized layer of the scalp?
Connective tissue
What layer of the scalp can become a potential space for infection?
Loose connective tissue
What direction does the neurovasculature of the scalp travel?
Inferior to superior
What layer of the scalp must be cut through to cause a gaping wound?
Aponeurosis - provides attachment for muscles which can pull back and cause a gaping wound
What layers of the scalp form the scalp proper?
Skin
Connective tissue (dense)
Aponeurosis
Why would a patient with mumps have pain in the cheek?
Parotid gland is swelling and is constricted by parotid fascia and cannot expand
What are the 3 major vessels passing through the Parotid gland?
Facial N. (does not innervate gland)
Retromandibular V.
External Carotid A.
What part of the orbicularis oculi closes the eye tightly?
Orbital part
What part of the orbicularis oculi gently closes the ey?
Palpebral part
What are the branches of Facial N. providing motor innervation?
A - Posterior Auricular N.
Tiny - Temporal N.
Zebra - Zygomatic N.
Bit - Buccal N.
My - Mandibular N.
Cheek - Cervical N.
What branch of Facial N. provides sensory information to the anterior 2/3 of the tongue?
V3 - Chorda Tympani
What branch of Facial N. transmits parasympathetic fibers to the lacrimal gland?
Greater petrosal N.
What branch of Facial N. carries parasympathetic fibers to the submandibular and sublingual salivary glands?
Chorda Tympani
If CN VII was damaged proximal to the Stapedius N., what sx would be seen?
Hyperacoustic in the ipsilateral ear (loud)
Ipsilateral Bell’s palsy and loss of submandibular and sublingual gland production
What is the sensory innervation of the bridge of the nose?
Opthalmic V1
What is the sensory innervation of the sides of the nose?
Maxillary V2
What is the sensory innervation of the upper eyelid?
Opthalmic V1
What is the sensory innervation of the lower eyelid?
Maxillary V2
What is the sensory innervation of the cornea?
Opthalmic V1
What provides motor innervation to the Buccinator M.? What provides sensory innervation?
Motor: Buccal branch of Facial N. CN VII
Sensory: Buccal branch of Trigeminal N. CN V3
What provides motor innervation to Parotid gland? Sensory innervation?
Motor: parasympathetic fibers traveling with Glossopharyngeal N. CN IX
Sensory: Auriculotemporal N. and Great Auricular N.
What provides cutaneous sensation to the angle of the mandible?
Cervical plexus
What provides motor innervation to the muscles of mastication?
Mandibular V3
What do the Supratrochlear and Supraorbital Ns. arise from? What do they innervate?
Ophthalmic V1
Sensory innervation to eyelid, forehead, scalp, and vertex
What are the branches of the Maxillary N.?
Infraorbital N.
Zygomaticofacial N.
Zygomaticotemporal. N.
What are the branches of the Mandibular N.?
Auriculotemporal N.
Buccal N.
Mental N.
Where does Herpes Zoster normally lie dormant?
Sensory root ganglia/dorsal root ganglia
A 50 y/o patient presents with a rash to her forehead and bridge of her nose. She has a history of chicken pox as a child. What nerve has the virus taken the distribution of? Specifically what division?
Trigeminal N V1 (opthalmic)
What is the anastamosis between ICA and ECA on the forehead?
Superficial Temporal A. (Frontal branch) (ECA)
Supraorbital A. (ICA)
What two arteries anastamose around the eyes?
Supratrochlear A. (ICA)
Angular A. of Facial A. (ECA)
What do the Mastoid LNs drain?
Posterior lateral sides of the head (posterior to ear)
What do the Parotid LNs drain?
Forehead, lateral face, eyes
What do the submandibular LNs drain?
Top lip and lateral lower lips
What do the Submental LNs drain?
Central lower lip
Chin
