Face and Scalp Flashcards
Which of the following muscles is NOT directly involved in smiling?
A.Orbicularis orisB.RisoriusC.Zygomaticus majorD.Zygomaticus minor
A –orbicularis oris m. is sometimes referred to as the “kissing muscle”and it functions to close the mouth and pucker the lips. It is also in use when playing brass instruments and some woodwind instruments.
The skin of the chin is innervated by which nerve?
A.buccal B.infraorbital C.marginal mandibularD.mentalE.supratrochlear
D –mental n. which is a branch of the mandibular division of Trigeminal n.
Which layer of the scalp contains the superficial temporal artery?
A.Layer 1–Skin B.Layer 2–Connective tissue C.Layer 3–Aponeurosis D.Layer 4–Loose areolarE.Layer 5 –Periosteal
B –the second layer of the scalp, connective tissue layer contains the vasculature
Which nerve innervates the orbicularis oculi?
A.auriculotemporalB.infraorbitalC.supraorbitalD.zygomatic branch of facial E. zygomaticofacial
D –muscles of facial expression are all innervated by the facial nerve (CN VII) –orbicularis oculi m. is more specifically innervated by the zygomatic branch of the facial nerve
Most of the face is supplied with blood from the external carotid artery. Which area is supplied by the internal carotid artery?
A.cheekB.chinC.foreheadD.side of the noseE. upper lip
C –supraorbital a. and supratrochlear a. are branching from ophthalmic a. which is a branch from the internal carotid a. The facial a.and superficial temporal a. are branches of the external carotid a. and give off branches that supply the remainder of the face.
The left side of your patient’s mouth is drooping and he cannot close it properly. This is most likely due to a lesion involving which nerve?
A.CN III B.CN V C.CN VII D.CN IX E.CN XII
C –Facial n. provides motor innervation to the muscles of facial expression. When this nerve is compromised, the face may droop due to inactivity (disuse) of the mm. of facial expression.
An infection of the parotid gland that is contained within the parotid sheath could compress what structure?
A.External carotid a.B.Facial a. C.Facial v. D.Internal jugular v.E. Maxillary a.
A –external carotid a. and retromandibular v. are located within the parotid gland, so these are the structures most likely to be compressed in this instance
The muscles of facial expression are associated with which pharyngeal arch?
A.1st B.2nd C.3rd D.4th E.5th F.6th
B –this is an integrated question –facial mm. are developed from mesoderm in the second pharyngeal arches
The cell bodies of sensory neurons that innervate the face are located in which of the following?
A.brainstem B.spinal cord C.superior cervical ganglion D.trigeminal ganglion E.trigeminal nucleus
D –the Trigeminal n. provides sensory innervation of the face. The cell bodies associated with this nerve pathway is the trigeminal ganglion.
Which nerve provides sensory innervation to the lateral aspect of the scalp?A.auriculotemporal B.buccal C.facial D.mental E.zygomaticofacial
A –auriculotemporal nerve, a branch of the mandibular division of trigeminal, provides sensory innervation to the lateral aspect of the scalp
