Pharynx/Larynx

Question 1

Bony protrusions of nasal cavity

Answer 1

The cohncha

Divides cavity into passageways:

Superior meatus
Middle meatus
Inferior meatus

Question 2

Answer 2

1 - Frontal sinus draining into the middle meatus

2 - maxillary sinus draining into the middle meatus (are beneath the middle concha)

3 - Ethmoid sinus draining into the middle meatus

4 - Nasolacrimal duct

5 - Ethmoid sinus draining into the superior nasal meatus

6 - Sphenoid sinus (located in the sphenoid bone) draining into the sphenoethmoidal recess

7 - Pharyngotympanic (eustachian) tube opening into the nasopharynx

Question 3

Anastomoses of the nasal cavity

Answer 3

The sphenopalatine artery (from the maxillary a.) forms an anastomosis with the enterior ehtmoidal artery via the Kiesselbach plexus

Major anastomosis - internal and external carotid arteries

Question 4

Sensory innervation to the mucosa of the nasopharnx

Answer 4

CN VII from the pterogopalantine ganglion

Hitchhikes on CN V-2

Question 5

Three structures draining into one area each

Answer 5

Question 6

One nasal space receiving drainage from three cavities

Answer 6

Question 7

What supplies blood to the hard and soft palates?

Answer 7

The greater and lesser palantine branches of the maxillary artery

Question 8

Blood supply to the naso mucosa

Answer 8

Maxillary enters the sphenopalatine foramen

Question 9

Trigeminal ganglion

Answer 9

Sensory ganglion

Question 10

Muscles of the tongue and their innervation

Answer 10

Question 11

Levator veli palatini m.

Answer 11

Question 12

Tensor veli palatini m.

Answer 12

Question 13

Palatoglossus m.

Answer 13

Question 14

Palatopharyngeus m.

Answer 14

Question 15

Palatine tonsil

Answer 15

Blood supply -
1. Ascending palatine a. and tonsillar branches from facial a.
2. Descending palatine from maxillary a.
3. Palatine branch from ascending pharyngeal a.
4. Dorsal lingual branches from lingual a.

Innvervation - CN IX (motor) and CN X (sensory)/CN V-2 (palatine branch - sensory)

Question 16

Pharyngeal tonsils

Answer 16

Found in the posterior wall and roof of nasopharynx; also called the adenoids

Question 17

Lingual tonsil

Answer 17

Lymphoid tissue on the dorsal tongue

Question 18

Tubal tonsils

Question 19

Hyoid bone

Answer 19

At level CV3 at superior border of larynx

Question 21

Posterior boundaries of larynx

Answer 21

CV3 - CV6

Question 22

Thyroid cartilage

Answer 22

At level CV5

Question 23

Superior edge of conus elasticus

Answer 23

Vocal cord

Question 24

Abduction of the vocal cords,
opens the glottis

Answer 24

Posterior cricoarytenoid m.

Question 25

Cricothyroid m.

Answer 25

Innervated by the external laryngeal n.

(all other muscles of the larynx innervated by recurrent laryngeal nerves)

Question 26

Relaxes vocal cords

Answer 26

Thyroarytenoid m

Question 27

Tenses vocal cords

Answer 27

Vocalis m.

Question 28

Adduction of vocal cords; closes
glottis

Answer 28

Lateral cricoarytenoid m.
Transverse arytenoid m.
Oblique arytenoid m.
Cricothyroid m.
Thyroarytenoid m.