Lecture 4-Superficial Face Flashcards
Name the 5 layers of the scalp from superficial to deep
Skin Dense CT Aponeurotic layer Loose CT Periosteum
Which layer of the scalp contains the occiptofrontalis muscle?
Aponeurotic (3rd) layer
What is the function of the occipitofrontalis muscle?
move scalp
wrinkle forhead
raise eyebrows
What branch of CN VII innervates the occiptofrontalis muscle?
posterior auricular branch of CN VII
What pharyngeal arch are the muscles of facial expression derived from?
Pharyngeal arch 2
What is the function of the orbicularis oculi muscle?
close the eyes
What is the function of the corrugator supercilii?
Draws eyebrows to midline
vertical wrinkles
What muscle creates vertical wrinkles between the eyebrows and is thus a common target for botox?
corrugator supercilii
What muscle creates horizontal wrinkles over the nose?
procerus
Which part of the nasalis muscle compresses the nares?
transverse part
What does the alar part of the naslis muscle do?
opens the nares
Name the lower group of oral muscles from medial to lateral
mentalis, depressor labii inferioris, depressor anguli oris
What muscle protrudes the lower lip and is called the pouting muscle?
mentalis
What nerve provides sensory innervation to the face?
Trigeminal Nerve (CN V)
What nerves provide sensory innervation to the posterior scalp?
Cervical Nerves:
- Great auricular
- lesser occipital
- greater occipital
- third occipital
What nerve is injured in Bell’s Palsy?
Facial Nerve (CN VII)
What does the facial artery terminate as at the medial corner of the orbit?
angular artery
Where does the transverse facial artery branch from?
maxillary artery
What are the two branches of the Internal Carotid artery that supply blood to the scalp?
Supratrochlear artery
Supra-orbital artery
What are the three branches of the external carotid artery that supply blood to the scalp?
Posterior auricular artery
Occipital artery
Superficial temporal artery
List the five branches (2 from ICA & 3 from ECA) that supply blood to the scalp?
Supratrochlear artery Supra-orbital artery Posterior auricular artery Occipital artery Superficial temporal artery
What is the largest salivary gland?
parotid gland
What three structures pass through the parotid gland?
Facial Nerve
External Carotid artery and branches
Retromandibular vein
What two veins join within the parotid gland to form the retromandibular vein?
superficial temporal and maxillary vein
