Throat Anatomy

Question 1

What level is the hyoid?

Answer 1

C3

Question 2

Where does the submandibular gland enter mouth?

Answer 2

At the sublingual caruncle

Question 3

What is the sting like feature called that connects under tongue to floor of mouth?

Answer 3

Frenulum

Question 4

What two muscles make up the floor of the mouth?

Answer 4

Mylohyoid

Geniohyoid

Question 5

What is the innervation to the geniohyoid?

Answer 5

C1 via hypoglossal nerve

Question 6

What is innervation to the mylohyoid?

Answer 6

CNV3

Question 7

What is the innervation to the sublingual gland?

Answer 7

CNVII (via chorda tympani then V3)

Question 8

What is the innervation to the submandibular gland?

Answer 8

Parasympathetics of CNVII (via chorda tympani then V3)

Question 9

What is the innervation of the parotid nerve?

Answer 9

CNIX, glossopharyngeal (via V3)

Question 10

What innervates the anterior 2/3rd of tongue?

Answer 10

Sensory = CNV3
Taste = CNVII

Question 11

What innervates the posterior 1/3rd of the tongue?

Answer 11

CNIX, glossopharyngeal

Question 12

Name the types of papillae

Answer 12

Vallate
Foliate
Fungiform
Filiform

Question 13

What type of papillae does not contain taste buds?

Answer 13

Filiform

Question 14

What is the name for the division between anterior and posterior tongue?

Answer 14

Sulcus terminalis

Question 15

Where does the thyroid descend through the tongue?

Answer 15

foramen caecum

Question 16

What are the four external muscles of the tongue?

Answer 16

Genioglossus
Hypoglossus
Styloglossus
Palatoglossus

Question 17

What innervates the external muscles of the tongue?

Answer 17

All CNXII (hypoglossal) except palatoglossus which is CNX

Question 18

Is CNXII mostly motor or sensory?

Answer 18

Motor

Question 19

Where does CNXII leave CNS?

Answer 19

Medulla oblongata

Question 20

Where does CNXII leave the skull?

Answer 20

Hypoglossal canal

Question 21

What are the muscles of the soft palate?

Answer 21

Tensor veli palatini
Levator veli palatini
Palatopharyngeus 
Palatoglossus
Musculus uvulae

Question 22

What is the innervation to the soft palate muscles?

Answer 22

All CNX except Tensor veli palatini which is V3

Question 23

The circular (constrictor) layer of muscle of the pharynx is outer. T/F?

Answer 23

True

Question 24

What are the circular muscles of the pharynx?

Answer 24

Superior, middle and inferior pharyngeal constrictor

Question 25

What is the innervation to the circular muscles of the pharynx?

Answer 25

CNX

Question 26

What are the longitudinal muscles of the pharynx?

Answer 26

Stylopharyngeus Palatopharyngeus Salpingopharyngeus

Question 27

What is the innervation to the longitudinal muscles of the pharynx?

Answer 27

All are CNX except Stylopharyngeus which is CNIX

Question 28

What is the function of longitudinal and circular pharyngeal muscles?

Answer 28

Longitudinal muscles lift up pharynx then circular muscles constrict to hold there

Question 29

Name the tonsils

Answer 29

Pharyngeal (adenoids) Tubal (around eustachian tube) Palatine Lingual

Question 30

What lymph node would be inflamed in palatine tonsil pathology?

Answer 30

Jugulo-digastric node because palatine tonsils drains to here

Question 31

What is the level of the Larynx?

Answer 31

C4-C6

Question 32

Name the joints in the cricoid cartilage

Answer 32

Cricothryoid | Cricoarytenoid

Question 33

What are the two processes of the arytenoid cartilage?

Answer 33

Vocal and muscular process

Question 34

Looking from the back, what are the three areas/feature of the larynx?

Answer 34

Layngeal vestibule Laryngeal ventricle Infra-glottic cavity

Question 35

What is the name for the space between vocal cords?

Answer 35

Rima Glottidis

Question 36

Where is a laryngoscope placed?

Answer 36

Into the vallecula: between epiglottis and tongue

Question 37

What is the innervation to the vocal cord muscles?

Answer 37

CNX

Question 38

What muscles tenses vocal cords?

Answer 38

Cricothyroid muscles

Question 39

What muscle relaxes vocal cords?

Answer 39

Thyroarytenoid muscles

Question 40

What muscle causes adduction of vocal cords?

Answer 40

Lateral crico-arytenoid muscle AND | Arytenoid muscles

Question 41

Which laryngeal muscle has a transverse and oblique section?

Answer 41

Arytenoid muscles

Question 42

What muscle causes abduction of the vocal cords?

Answer 42

Posterior crico-arytenoid muscles

Question 43

What nerve provides sensation above the vocal folds?

Answer 43

Internal laryngeal nerve

Question 44

What nerve provides sensation below the vocal folds?

Answer 44

Inferior laryngeal nerve