Face Flashcards
What are the three divisions of facial innervation
Ophthalmic
Maxillary
Mandíbulas
What provides sensory to face
Trigeminal nerve
Posterior half of skull innervated by
Greater occipital nerve
Motor innervation to muscles of facial expression is
Facial nerve
What are the 5 branches of the the facial nerve
Named in the location in which they travel
Temporal zygomatic, bucal, mandíbular and cervical
What connects the frontal belly of occipitofrontalis to the occipital belly of occipittofrontalis
Gala apnerousis
What is the function of the occipitofrontalis
Frontal portion
Occipital portion
Elevates eyebrows and wrinkles the skin of forehead
Retracts the scalp
What is the function of the orbicularis oculi
Close the eyelids
What are the two parts of the orbicularis oculi
Orbital and palpebral
What is the function of zygomaticus major muscle
Bilaterally elevates both sides of the upper lip to smile
Unilateral elevates the ipsilateral upper lip as in a sneer
Function of orbicularis oris
Compresses and protrudes the lips or resist distention
Function of depressor anguli oris
Depresses angle of mouth when sad
(From)
Function of buccinator muscle
Presses cheek against molar teeth: resist distention
Playsma muscle function
Depresses mandible against resistance
Facial artery branches
Off of the external carotid artery
Facial artery heads
Towards the angle of the mouth where is divides into superior and inferior labial artery
What does the facial nerve ascend toward
Medial eye as the angular artery
What does the terminal end of the external carotid artery divide into
Superficial and temporal artery
What branches off of the superficial temporal artery
Transverse facial artery
What two arteries supply the scalp
Supraorbital and supratrochlear
What arteries supply the middle and posterior portions of the scalp
Superficial temporal, posterior auricular, occipital artery
What is the largest venous drain of face
Facial vein
Facial vein drains into what
Internal jugular vein
What does the retromandibular vein empty into
External jugular vein