Head And Neck - Dry Room (Week 2)

Question 1

The vestibule of the oral cavity refers to what space?

Answer 1

Anterior to the teeth

Question 2

The muscle innervated by the facial nerve that lies in the lateral walls of the oral cavity is the ______?

Answer 2

Buccinator

Question 3

The muscle that causing closing/pursing of the lips is called what?

Answer 3

The orbicularis orbis

Question 4

The posterior opening of the oral cavity is called what?

Answer 4

The oropharyngeal isthmus

Question 5

What are the functions of the tongue?

Answer 5

Moving food during chewing
Swallowing
Speech

Question 6

What is the embryological significance of the foramen caecum?

Answer 6

Remnant of the thyroglossal duct

Question 7

What three types of papillae does the dorsal surface of the tongue have? Which doesn’t have taste buds?

Answer 7

Filiform (no taste buds)
Fungiform
Vallate

Question 8

The dorsal surface of the posterior 1/3 of the tongue has elevations due to lymphoid tissue, what is this called?

Answer 8

The lingual tonsil

Question 9

Name the fold of the mucous membrane that fixes the tongue to the floor of the mouth?

Answer 9

Frenulum (fimbriated fold)

Question 10

What supplies the general sensory information for the anterior two thirds of the tongue?

Answer 10

Mandibular division of CN V

Question 11

What supplies the general sensory and taste information for the posterior third of the tongue?

Answer 11

Glossopharyngeal (IX) nerve

Question 12

What supplies the special sensory information for the anterior two thirds of the tongue?

Answer 12

Chorda tympani branch of the facial nerve

Question 13

What is the collective function of the extrinsic muscles of the tongue?

Answer 13

Change the position of the tongue

Question 14

What is the collective function of the intrinsic muscles of the tongue?

Answer 14

Change the shape of the tongue

Question 15

Name the extrinsic muscles of the tongue?

Answer 15

Genioglossus
Hypoglossus
Palatoglosus
Styloglossus

Question 16

What is the attachment of the genioglossus muscle?

Answer 16

Inner surface of the mandible close to the midline

Question 17

What is the attachment of the hypoglossus?

Answer 17

Upper border of the mandible

Question 18

What is the attachment of styoglossus muscle?

Answer 18

Styloid process

Question 19

What is the attachment of palatoglossus?

Answer 19

Soft palate

Question 20

What is the action of the genioglossus?

Answer 20

Protrudes tongue to opposite side

Question 21

What is the action of the hypoglossus?

Answer 21

Depresses and retracts the tongue

Question 22

What is the action of the styloglossus?

Answer 22

Retraction and elevation of the tongue

Question 23

What is the action of the palatoglossus?

Answer 23

Raise posterior tongue

Question 24

Which extrinsic muscle of the tongue is not innervated by the hypoglossal nerve?

Answer 24

Palatoglossus

Question 25

What innervates the palatoglossus?

Answer 25

Vagus (CN X)

Question 26

Name the three large paired salivary glands?

Answer 26

Sublingual Submandibular Parotid

Question 27

What innervates the parotid gland?

Answer 27

Glossopharyngeal nerve (CN IX)

Question 28

What innervates both the sublingual and submandibular salivary glands?

Answer 28

Chorda tympani of CN VII

Question 29

What two bones form the hard palate?

Answer 29

Maxilla and palatine bone

Question 30

Name the muscles of the soft palate?

Answer 30

1. Tensor veli palatini 2. Palatoglossus 3. Palatopharyngeus 4. Levator veli palatini 5. Musculus uvulae

Question 31

What nerve supplies the soft palate?

Answer 31

Vagus via the pharyngeal plexus

Question 32

What structures lie in-between the mucosal folds of the palatoglossus and palatopharyngeus muscles?

Answer 32

Palatine tonsils

Question 33

What type of tissue makes up the palatine tonsils?

Answer 33

MALT

Question 34

What are the three parts of the pharynx

Answer 34

Nasopharynx, oropharynx and laryngopharynx

Question 35

What bone for s the roof of the nasopharynx?

Answer 35

Body of the sphenoid

Question 36

In relation to the the larynx, the larygnopharynx lie where?

Answer 36

Superoposteriorly

Question 37

What prevents a oral bolus from entering the nasopharynx?

Answer 37

The soft palate

Question 38

What prevents a oral bolus from entering the larynx?

Answer 38

The epiglottis

Question 39

What are the three layers of the wall of the pharynx?

Answer 39

Outer - superior, middle and inferior constrictors and inner longitudinal muscles Middle - Merges with deep fascia Inner - mucous membrane

Question 40

What are the three inner longitudinal muscles of the pharynx called?

Answer 40

Stylopharyngeus Salpingopharyngeus Palatopharyngeus

Question 41

What neural structure innervates the pharynx?

Answer 41

Pharyngeal plexus

Question 42

The branches of which two cranial nerves form the pharyngeal plexus?

Answer 42

Vagus and Glossopharyngeal

Question 43

Which cranial nerve provides the sensory innervation to the pharyngeal plexus?

Answer 43

IX

Question 44

Which cranial nerve provides the motor innervation to the pharyngeal plexus?

Answer 44

X

Question 45

What is the action of the constrictor muscles of the pharynx?

Answer 45

Propels bolus down

Question 46

What is the action of the inner longitudinal muscles of the pharynx?

Answer 46

Shortens and widens pharynx

Question 47

What is Waldeyer's ring?

Answer 47

Circle of lymphoid tissue surrounding the entrance to the oropharynx

Question 48

What structures comprise Waldeyer's ring?

Answer 48

Adenoids (pharyngeal tonsils), tubal, palatine and lingual tonsils

Question 49

What structures form the laryngeal inlet?

Answer 49

Epiglottis (anteriorly), Aryepiglottic fold (laterally) and Arytenoid cartilage (posteriorly)

Question 50

What nerve provides innervation to the larynx?

Answer 50

Recurrent laryngeal nerve (except for the cricothyroid muscle)

Question 51

What nerve provides innervation to the cricothyroid muscle?

Answer 51

Superior Laryngeal nerve (branch of Vagus)

Question 52

Describe the position of the true vocal folds during normal respiration

Answer 52

Abducted

Question 53

Describe the position of the true vocal folds during rapid breathing e.g. after exercise

Answer 53

Fully abducted

Question 54

Describe the position of the true vocal folds while speaking/singing

Answer 54

Closed (adducted)