Anatomy

Question 1

Branches of ECA

Answer 1

Superior thyroid
Ascending pharyngeal 
Lingual 
Facial 
Occipital 
Posterior auricular 
Maxillary 
Superficial temporal

Question 2

Infrahyoid muscles and innervation

Answer 2

Thyrohyoid
Omohyoid
Sternothyroid
Sternohyoid

All innervates by ansa cervicalis except
Thyrohyoid by anterior ramus of C1 via hypoglossal

Question 3

Blood supply of scalp (A to P)

Answer 3

Supratrochlear
Supraorbital
Zygomaticotemporal
Superficial temporal 
Posterior auricular 
Occipital

Question 4

Nerve supply of scalp (A to P)

Answer 4

Supratrochlear 
Supraorbital 
Zygomaticotemporal
Auriculotemporal
Lesser occipital 
Greater occipital

Question 5

Face venous drainage

Answer 5

Supraorbital + supratrochlear = facial
Maxillary + superficial temporal = retromandibular
Retromandibular + posterior auricular = EJV

Question 6

Internal carotid artery segment

Answer 6

Cervical 
Petrous
Lacerum
Cavernous
Clinoid 
Ophthalmic
Communicating

Question 7

Subclavian boundaries

Answer 7

Anterior scalene covers 2nd

Lateral to 1st rib = axillary

Question 8

Branches of subclavian artery

Answer 8

1st

1. Vertebral artery
2. Thyrocervical trunk
   - inferior thyroid
   - superficial cervical
   - suprascapular
3. Internal thoracic

2nd

1. Deep cervical
2. Superior intercostal

3rd
Usually none

Question 9

Nasal septum

Answer 9

Ethmoid
Vomer
Septal cartilage

Question 10

Nasal cavity roof (A to P)

Answer 10

Nasal
Frontal
Ethmoid cribiform
Sphenoid

Question 11

Nasal cavity floor

Answer 11

Maxilla palatine process

Palatine horizontal plate

Question 12

Arythenoid relations

Answer 12

A- vocal ligament
L- muscular process- posterior and lateral cricoarythenoid muscles
S- corniculate- gives rise to aryepiglottic fold
I- cricoid

Question 13

Sphenoethmoidal recess

1. location
2. Drains

Answer 13

Posterosuperior to superior choncae

Drains sphenoid sinus

Question 14

Superior nasal meatus drains

Answer 14

Posterior ethmoidal sinus

Question 15

Nasal infundibulum drains

Answer 15

Frontal sinus

Question 16

Hiatus semilunaris drains

Answer 16

Maxillary sinus

Question 17

Middle nasal meatus drains

Answer 17

Middle and anterior ethmoidal sinus

Question 18

Inferior nasal sinus drains

Answer 18

Nasolacrimal duct

Question 19

Nasal cavity blood supply

Answer 19

ECA:
Ophthalmic-> Sphenopalatine
Facial

ICA:
Greater and lesser palatine

Question 20

Sensory and motor supply of larynx

Answer 20

Sensory:
Above vocal fold- internal branch of superior laryngeal nerve
Below vocal fold- recurrent laryngeal nerve

Motor:
All intrinsic muscles- recurrent laryngeal nerve
Cricothyroid- external branch of superior laryngeal nerve

Question 21

Vocal fold vs vestibular fold

Answer 21

Vestibular:
Superior
Vascular
Fixed

Vocal:
Inferior
Avascular
Mobile

Question 22

Larynx intrinsic muscles

Answer 22

2 modify inlet
Narrows- oblique arythenoid
Widens- thyroepiglotic

5 moves vocal folds 
Adduction- lateral cricoarythenoid
Abduction- posterior cricoarythenoid 
Tense- cricothyroid
Relax- thyroarythenoid
Approximate- transverse arythenoid

Question 23

Autonomic inputs of parasympathetic ganglions

Answer 23

Ciliary- 3rd (inferior division)
Otic- 9th
Pterygopalatine- 7th (greater petrosal)
Submandibular- 7th (chorda tympani)

Question 24

Ligaments of mandible

Answer 24

Lateral:
Lateral temperomandibular ligament

Medial:
Sphenomandibular ligament
Stylomandibular ligament