The Oral Cavity

Question 1

Conveniently divided by the arch formed by the teeth and the gums into ORAL VESTIBULE and ORAL CAVITY PROPER

Answer 1

The oral cavity

Question 2

Anterrior boundary of the oral vestibule

Answer 2

Lips

Question 3

Lateral boundary of the oral vestibule

Answer 3

Cheeks

Question 4

Superior boundary of the oral vestibule

Answer 4

Mucolabial and muccobuccal folds

Question 5

Posterior and medial boundary of the oral vestibule

Answer 5

Teeth and gums

Question 6

Anterior and lateral boundary of the oral cavity

Answer 6

Teeth and gums

Question 7

Superior boundary of the oral cavity

Answer 7

Hard and soft palate

Question 8

Inferior boundary of the oral cavity

Answer 8

Tongue and floor of the mouth

Question 9

Posterir boundary of the oral cavity

Answer 9

Opeing of the pharynx

Question 10

Features the anterior 2/3 of the tongue, lingual frenulum, lingual vein, sublingual caruncle, sublingual folds, and fimbriated fold.

Answer 10

Sublingual region

Question 11

Consist of dense vascular fibrous tissue which is covered by mucous membrane and is attached to the alveolar margins of the jaw.

Answer 11

Gums/gingivae

Question 12

Continuous with the mucosa of the oral vestibule externally and the palate or the floor of the mouth internally.

Answer 12

Gums/gingivae

Question 13

Forms the superior wall or roof of the oral cavity proper.

Answer 13

Hard and soft palate

Question 14

Covered by MUCOPERIOSTEUM and forms a partition between the oral and nasal cavities.

Answer 14

Hard palate

Question 15

Two bones forming the hard palate

Answer 15

Palatine process of the maxilla and horizontal plate of the palatine bone

Question 16

A longitudinal ridge extending from the uvula to the incisive papilla

Answer 16

Median Raphe

Question 17

A small projection of the mucosa indicating the location of the incisive foramen and the anterior limit of the medial raphe.

Answer 17

Incisive papilla

Question 18

About six distinct elevations crossing the anterior part of the hard palate

Answer 18

Transverse palatine process or palatine rugae

Question 19

Are small inconstant pits on the posterior margin of the hard palate on either side of the median raphe.

Answer 19

Fovea palatine

Question 20

Posterior movable portion of the palate, extending from one side of the pharynx to the other, and attached to the posterior border of the hard palate.

Answer 20

Soft palate

Question 21

It is the median conical projection marked by median raphe

Answer 21

Uvula

Question 22

Are free margins of the soft palate and splitting two parts as they approach the lateral wall

Answer 22

Palatine arches

Question 23

Encloses the the palatoglossus muscle. Also called the anterior pillsr of fauces or anterior palatine arch

Answer 23

Palatoglossal arch

Question 24

Encloses the palatopharyngeus muscle. Also called posterior pillar of fauces or posterior palatine arch.

Answer 24

Palatapharyngeal arch

Question 25

Originated from the palatal aponeurosis, insterts to the lateral wall if the pharynx and posterior border of the thyroid cartilage. It elevates the pharupynx and larynx, and closes the oropharyngeal isthmus.

Answer 25

Palatopharyngeus muscle

Question 26

Originates form the palatal aponeurosis and inserted to the dorsum and lateral aspect of the tongue. It closes the oropharyngeal isthmus.

Answer 26

Palatoglossus muscle

Question 27

Originates from the posterior nasal spine, and is inserted to the uvula. It raises the uvula to help seal oral from nasal pharynx.

Answer 27

Uvular muscle

Question 28

Originates form the lateral aspect of the membranous portion of tbe auditory tube, scaphoid fossa of the sphenoid bone. Inserted to the tendon hooks under hamulus and inserts into the palatal aponeurosis. It tenses the palate and opens the mouth of auditory tube during swallowing and yawning.

Answer 28

Tensor Veli Palatini Muscle

Question 29

Originates from the medial aspect of the auditory tube, and inserts directly into the palatine aponeurosis. It elevates the palate during swallowing and yawning.

Answer 29

Levator Veli Palatini Muscle

Question 30

It is a mobile mass of muscles lying on the floor of the mouth and associated with the funtion of taste, chewing, swallowing, and speaking.

Answer 30

Tongue

Question 31

Lower portion of the posterior half of the tongue through which rgeb extrinsic muscles, blood vessels amd nerves become connected with the organ. It attached to the mandible and the hyoid bone.

Answer 31

Rootof the tongue

Question 32

Anterior part of the tongue, made up of interlacking skeletal muscles

Answer 32

Body of tongue

Question 33

Lateral portion of the tongue, free and blunt, in relation to the gums and teeth.

Answer 33

Margins

Question 34

The pointed and free anterior end

Answer 34

Tip or apex

Question 35

Seen when the tongue is turned upwards

Answer 35

Inferior surface

Question 36

Slightly convex antero-posteriorly and is divided into two parts by a V-shaped groove

Answer 36

Dorsum linguae

Question 37

V-shaped groove on the dorsum liguae

Answer 37

Sulcus terminalis or linea terminalis

Question 38

Opened when the mouth is opened, covered by papillae

Answer 38

Palatine part

Question 39

A faint groove spreading the palaine part into symmetrical parts

Answer 39

Median sulcus

Question 40

A small pit at the apex of the sulcus terminalis

Answer 40

Foramen caecum

Question 41

Posterior 2/3s of the tongue which contaisns serous glands and nodules of lymphoid tissue or lingual follicles

Answer 41

Pharyngeal part

Question 42

In the reflection of the mucous membrane of the tongue on to the epiglottis producing elevation

Answer 42

Glosso-epiglottic fold

Question 43

Largest, numbering form 7-12, and are arranged in front of the sulcus terminalis

Answer 43

Vallate or circumvallate papillae

Question 44

Fewer in number, and are limited to the tip and margins of the tongue

Answer 44

Fungiform papillae

Question 45

Smallest and most numerous, scattered all over the anterior 2/3s of the dorsum of the tongue

Answer 45

Filiform papillae

Question 46

Receptor organs for the special sensation of taste

Answer 46

Taste buds

Question 47

The py are pale oval bodies most of which are located surrounding the vallate papillae; few are found on the fungiform and folliate papillae

Answer 47

Taste buds

Question 48

Muscles resposible for changing position of the tongue

Answer 48

Extrinsic muscles

Question 49

Originates from the genial tubercke of mandible and insters to the tongue. It retracts and depresses the tongue.

Answer 49

Genioglossus muscle

Question 50

Orogin: hyoid bone Insertion: posterior half of the side of the tongue Action: depresses the tongue

Answer 50

Hyoglossus muscle

Question 51

Origin: styloid process of temporal bone Insterion: whole length of the tongue Action: pull the tongue upwards and backwards

Answer 51

Styloglossus muscle

Question 52

Changes the shape of the tongue

Answer 52

Instrinsic muscles

Question 53

Located close to the dorsum of the tongue and shortens the length of the tongue and to curl the tip of the tongue and back.

Answer 53

Superior and Inferior Longitudinal Muscles

Question 54

Narrows the tongue

Answer 54

Transverse muscle

Question 55

Flattens the tongue

Answer 55

Vertical muscles

Question 56

A fractured mandible may damage the WHAT NERVE to pull tongue to the same side.

Answer 56

Hypoglossal nerve

Question 57

A large lingual frenulum can limit mobility of the tongue and interfere with speech. This condition can be easily repaired by cutting the frenulum.

Answer 57

Tongue tied

Question 58

Procedure in cutting the frenulum

Answer 58

Lingual frenectomy

Question 59

One of the three major salivary glands that oriduce and secrete saliva for the oral cavity.

Answer 59

Parotid gland

Question 60

Location of the parotid gland on the superior surface

Answer 60

Posterior border of the ramus of the mandible

Question 61

Location of the parotid gland on the posterior surface

Answer 61

External auditory meatus and SCM Muscle

Question 62

Location of the parotid gland, where it is lobulated, covered by skin, fascia, lymph nodes and facial branches of the great auricuoar nerve

Answer 62

Superficial surface

Question 63

Styloid process and its muscles as well as under the mastoid and sternocleidomastoid muscles

Answer 63

Deep surface

Question 64

Anterior thickening of the capsule, which runs from the styloid process to the angle of the mandible.

Answer 64

Stylomandibular ligament

Question 65

Duct for parotid gland

Answer 65

Stensen's duct

Question 66

Found partly in the submandibular fossa BELOW the mylohyoid muscle and partly in the floor of the mouth.

Answer 66

Submandibular gland

Question 67

Type of secretion of the submandibular gland

Answer 67

Mixed, mostly serous

Question 68

Duct for the submandibular gland

Answer 68

Wharton's duct

Question 69

A mucous secreting gland, and smallest of the three major salivary glands, which rests UPON/ABOVE the mylohyoid muscle

Answer 69

Sublingual gland