H&N Flashcards Preview

BDS 1 > H&N > Flashcards

Flashcards in H&N Deck (409)
Loading flashcards...
241

Forever Losing Notes

V1 - ophthalmic branches
Frontal
Lacrimal
Nasociliary

242

Always Believe Lots Info Actually Matters

V3 mandibular branches
Auriculotemporal
Buccal
Lingual
Inf. alveolar
Masticatory muscles

243

Two Zebras Behind My Car

Branches of facial nerve outside facial canal
Temporal
Zygomatic
Buccal
Mandibular
Cervical

244

Come Great Steed

Branches of facial nerve inside facial canal
Chorda tympani
Greater petrosal
Stapedius muscles

245

Standing Room Only

Exits of V1-3
Superior orbital fissure
Foramen rotundum
Foramen ovale

246

O TOM CAT

Structures in cavernous sinus

Oculomotor

Trochlear
Ophthalmic - V1
Maxillary - V2

Carotid artery
Abducens
Trochlear

247

Live Frankly To See Absolutely No Insult

Nerves passing through sup. orbital fissure

Lacrimal - V1
Frontal - V1
Trochlear
Sup. of oculomotor
Abducens
Nasociliary - V1
Inf. oculomotor

248

LR6 SO4 3

Lateral rectus - VI abducens
Sup. oblique - IV trochlear
Other 4 (sup., med. rectus, levator palpebrae superioris, ciliary ganglion) - III oculomotor

249

My Ass Meets The Toilet

Muscles innervated by V3

Mylohyoid
Ant. belly of digastric
Muscles of mastication
Tensor tympani
Tensor veli palatini

250

Some Like Fucking, Others Prefer S and M

Sup. thyroid
Lingual
Facial
Occipital
Post. auricular
Maxillary
Superficial temporal

251

I See 10 CCs in the IV

Carotid sheath contents

I See = Internal Carotid
10 = X Vagus
CC = Common Carotid
IV = Internal Jugular Vein

252

What muscles make up the occipitofrontalis muscles?

Frontalis
Occipitals

253

Describe the frontalis muscle

Origin: galea aponeurotica
Insertion: skin near eyebrows, root of nose
Action: raise eyebrows, wrinkle forehead

254

Describe the occipitals muscle

Origin: occipital bone
Insertion: galea aponeurotica
Action: scalp backwards

255

Describe the temporalis muscle

Origin: temporal fossa between inf. temporal line
Insertion: med. and ant. aspect of coronoid process of mandible
Action: elevate mandible (close jaw)

256

Describe the masseter muscle

Origin: ant. 2/3 of zygomatic arch and zygomatic process of maxilla
Insertion: lat. surface of angle and lower ramus
Action: elevate mandible - forced closure

257

Describe the auricularis muscle

Origin: galea aponeurotica
Insertion: cartilage of auricle
Action: ear position

258

Describe the buccinator

Origin: alveolar portion of maxilla and mandible
Insertion: orbicularis oris
Action: flatten cheek, retract angle of mouth

259

Describe the orbicularis oculi

Origin: med. orbital margin and lacrimal sac
Insertion: lid of eye
Action: close eye, aid passage and drainage of tears

260

Describe the orbicularis oris

Origin: ant. surface of maxilla and mandible, angle of mouth
Insertion: margin of lips
Action: narrows orifice of mouth, purses lips

261

Describe the zygomaticus major

Origin: frontal process of mandible
Insertion: angle of mouth
Action: lifts angle sup. and lat.

262

Describe the zygomaticus minor

Origin: lat. infra-orbital margin
Insertion: skin and muscle of upper lip
Action: draw skin between philtrum and lip corner obliquely upwards and lat.

263

What are the 3 major extrinsic tongue muscles?

Genioglossus
Hyoglossus
Styloglossus

264

Describe the genioglossus

Origin: sup. mental spine on post. surface of symphysis menti
Insertion: central mass of tongue and mucous membrane
Action: protracts tongue

265

Describe the hyglossus

Origin: sup. border of greater cornu of hyoid bone
Insertion: lat. sides of tongue
Action: depress tongue

266

Describe the styloglossus

Origin: ant. surface and apex of styloid process and upper 1/4 of stylohyoid process
Insertion: superolateral sides of tongue
Action: elevate, retract tongue, aids initiation of swallowing

267

What 4 muscles make up the suprahyoid?

Digastric, stylohyoid, mylohyoid, geniohyoid

268

What are the functions of the suprahyoid muscles?

Anchor tongue
Elevate hyoid
More larynx sup. during swallowing

269

What 4 muscles make up the infrahyoid muscles?

Omohyoid
Sternohyoid
Sternothyroid
Thyrohyoid

270

What is the function of the infrahyoid muscles?

Depress hyoid