W1: Face/Scalp & facial expression muscles Flashcards
What bones are derived from meckels cartilage?
mandible, incus, malleus
What bones are derived from the reicherts cartilage?
styloid process, stylohoid, lesser Cornu, stapes
What bone is derived from the third arch and 4/6 arch
Greater cornu (3rd)
Thyroid and cricoid cartilage (4th/6th)
What muscles are derived from the 1st, 2nd, 3rd, 4th, 5th, 6th pharyngeal arch
1st- muscles of mastication
2nd- facial expression muscles
3rd- stylopharngeus muscles
4th/6th- pharyngeal muscles
What are three structures supplied by the ophthalmic division
Cornea, lacrimal gland, paranasal sinuses, skin of the forehead to the apex of the nose
What are three structures that get sensory innervation by the maxillary division
Mx teeth, upper lip, palate, gingiva, maxillary air cells, nasal cavity, middle region of face
What are three structures that get sensory innervation by the mandibular division of the trigeminal nerve
Mandibular teeth, chin, lower lip, buccinator, skin of cheek and mucosa and TMJ.
List the nerves that supply the posterior region of the head and neck?
anterior rami: - greater occipital, third occipital
Posterior rami- greater auricular and the lesser occipital
List the layers of the scalp?
Which layers of the scalp form the true scalp(scalp proper)
Skin, dense connective tissues, aponeurosis
which layer of the scalp may we see neurovascular structures?
dense connective tissues
Where does pooling of blood of blood occur when our head faces any sort of trauam?
loose connective tissue
What ganglion is primarily targeted by herpes zoster
trigeminal ganglion
what nerve supplies sensory innervation to the TMJ?
auriculotemporal nerve
List the branches of arteries that arise from the internal common carotid artery?
Supratrochlear and supraorbital artery
What structures pierce the parotid gland
External common carotid artery, retromandibular and the 5 anterior branches of the facial nerve
List the branches of arteries that arise from the external common carotid artery
- Superior thyroid
- Ascending pharyngeal
- Occipital
- Posterior auricular
- Superficial temporal
- Lingual
7 facial - Maxillary
What nerve travels posterior to the external acoustic meatus
posterior auricular nerve
what nerve travels anterior to the external acoustic meatus
auriculotempral nerve
True or False. All emissary veins are valveless.
false
What two emissary veins conists of valves
Facial vein and superior ophthalmic vein
What is the origin, insertion,action, and nerve innervation of the occiptiofrontalis?
frontal belly: temporal
Occipital belly: posterior auricular
What is the action and nerve innervation of the orbicularis oculi?
Temporal and zygomatic
What is the origin, insertion,action, and nerve innervation of the Corrugator suppercilli?
innervation: temporal
What is the origin, insertion,action, and nerve innervation of the Procerus?
innervation: temporal and zygomatic
What is the origin, insertion,action, and nerve innervation of the Transverse part of the nasalis?
Innervation: buccal
What is the origin, insertion,action, and nerve innervation of the Alar part of the nasalis
innervation: buccal
What is the origin, insertion,action, and nerve innervation of the Depressor septi nasi
Innervation: buccal
What is the origin, insertion,action, and nerve innervation of the Orbicularis or is?
innervation: marginal mandibular and buccal
what is the Modiolus?
chiasm of facial expresssion muscles?
What is the origin, insertion,action, and nerve innervation of the buccinator
Innervation: buccal
What muscle inserts into the petrygomandibular raphe
Superior pharyngeal constrictor muscle
What is the origin, insertion,action, and nerve innervation of the depressor anguli oris?
Innervation: buccal and marginal mandibular
What is the origin, insertion,action, and nerve innervation of the Depressor labii inferiosis
Innervation:marginal mandibular
What is the most lateral/ superficial muscle of the lower oral muscles
depressor anguli oris
What is the deepest and most medial muscle of the lower oral muscles
mentalis
What is the origin, insertion,action, and nerve innervation of the Mentalis
innervation: marginal mandibular
What is the origin, insertion,action, and nerve innervation of the risorius?
innervation: buccal
What is the origin, insertion,action, and nerve innervation of the Zygomaticus major/minor?
innervation: zygomatic and buccal branch
What is the origin, insertion,action, and nerve innervation of the Levator labii superiosis and Levator labii superiosis Alaque nasi?
innervation: buccal and zygomatic
What is the origin, insertion,action, and nerve innervation of the Levator anguli oris
innervation: zygomatic and buccal
What is the origin, insertion,action, and nerve innervation of the anterior aricular, superior auricular, posterior auricular
innervation: posterior auricularand temporal (most anterior one)
What is the origin, insertion,action, and nerve innervation of the Platysma
innervation: cervical
what two muscles are regulated when frowning?
procerus and depressor anguli oris
What muscles are regulated when smiling?
Zygomaticus major, minor, Levator anguli oris, and risorius depending on extent of smile
A 75 year old patient has visited the clinic and is shown to unable lift their upper lip. What nerve may be potentially impacted and the muscles involved?
Levator labii superiosis and Levator labii superiosis alaque nasi.
Nerve: buccal and/or zygomatic
