8-Mouth & Tongue brainscape

Question 1

Actions of the soft palate during swallowing

Answer 1

Tensor veli palatine tenses uvula Levator veli palatine raises uvula to seal off nasal cavities

Question 2

Arteries of the palate

Answer 2

Sphenopalatine Palatine

Question 3

Attachments of the Tongue

Answer 3

*Attached to mandible, hyoid, styloid process & palate by muscles*Rooted to epiglottis by Medial & Lateral glossoepiglottic folds *Lingual frenulum attaches surface to floor of mouth

Question 4

Blood Supply to the Oral Cavity

Answer 4

Maxillary: 1) Inferior Alveolar artery 2) Sphenopalatine Artery 3) Descending palatine artery Facial Lingual All from external carotid artery

Question 5

Extrinsic muscles of the tongue, action, & Innervation

Answer 5

Genioglossus: Protrudes tongue Hyoglossus: Depresses & retracts Styloglossus: Elevates & retracts Palatoglossus: Elevates - only one that is not CN XII ==> CN X

Question 6

Functions of the Mouth

Answer 6

*Grasping *Chewing of food *Preparing food for digestion *Phonation

Question 7

Gag Reflex Innervation

Answer 7

Afferent: Glossopharyngeal (IX) Efferent: Vagus (X)

Question 8

Gomphosis

Answer 8

type of joint in which a conical process is inserted into a socket-like portion **ie TEETH

Question 9

Greater Palatine Foramina

Answer 9

1) Greater palatine nerve (from pterygopalatine ganglia) 2) Greater palatine vessels (from maxillary artery)

Question 10

Incisive canal

Answer 10

1) nasopalatine nerve (from the pterygopalatine ganglion) 2) Sphenopalatine artery (from maxillary artery)

Question 11

Innervation of the Lower Jaw

Answer 11

Inferior alveolar branch of mandibular nerve

Question 12

Innervation of the Upper Jaw

Answer 12

Superior alveolar branch of the Maxillary Nerve (V2)

Question 13

Intrinsic Muscles of the Tongue & Innervation

Answer 13

Alter shape of tongue- all Hypoglossal CN XII1) Longitudinal 2) Transverse 3) Vertical

Question 14

Labial Frenula (frenulum)

Answer 14

Question 15

Lesser palatine foramina

Answer 15

1) Lesser Palatine nerve (from pterygopalatine ganglia) 2) Lesser palatine artery (from maxillary artery)

Question 16

Lymph drainage of the lip

Answer 16

Submandibular lymph nodes –> Deep lymph nodes Green: Submental lymph nodes, less likely to metastisize

Question 17

Lymph drainage of the tongue

Answer 17

Teal- deep cervical nodes (median - inferior deep, posterior third to superior deep) Pink- Submandibular lymph nodes Red- Submental lymph nodes

Question 18

Nasolabial Groove

Answer 18

Question 19

Nerve block for mandibular alveolar processes:

Answer 19

Anesthetize the inferior alveolar nerve at the mandibular foramen and this will anesthesize the whole bottom of the jaw **Look for the lingula- a bony projection on the mandible where the lower alveolar nerve enters the jaw through the mandibular foramen

Question 20

Nerve Block for Upper Jaw

Answer 20

1) Nasopalatine nerve: through incisive foramen, innervates the mucosa, gingivae, and palate of the anterior six maxillary teeth 2) Greater Palatine Nerve: through greater palatine foramen, innervates the mucosa, lingual gingivae, and palatine posterior to the canine teeth 3) Nerves on exterior aspect of specific tooth facing the vestibule

Question 21

Papillae of hte Tongue

Answer 21

1) Vallate - taste, serous 2) Foliate - taste, touch 3) Fungiform- taste 4) Filiform- touch only one without taste buds

Question 22

Parotid papilla

Answer 22

opening of the parotid duct

Question 23

relationship between submandibular salivary duct and lingual nerve

Answer 23

The lingual nerve loops under the submandibular duct, and ascends into the tongue on the external and superior surface of the hyoglossus muscle

Question 24

SKeleton of mouth

Answer 24

Maxilla & mandible mostly, posterior roof of mouth = horizontal process of palatine bond

Question 25

Skin of the transitional zone

Answer 25

Part of your lips that is actually red

Question 26

Squamous cell carcinoma of the lip (where does it occur?)

Answer 26

transitional area of epithelium - usually the lower lip!

Question 27

Stages of Swallowing

Answer 27

1) Tongue forces compacted bolus into orpharynx via styloglossus 2) Pharyngeal constrictors narrow the oropharynx \*\*\*\*\*Nasal cavity is sealed by soft palate musclces \*\*\*\*\*Salpingopharyngeus & stylopharyngeus elevate the laryngopharynx (auditory tube opens) 3) Laryn closes \*\*\*\*Bolus moves along esophagus, larynx returns to normal position

Question 28

Sublingual & Submandibular ducts in the goneu

Answer 28

open on the floor of the mouth Submandibular on the anterior midline Sublingual along the lingual nerve - Opening of submandibular duct 3- opening of sublingual duct

Question 29

Sulcus Limitans

Answer 29

Separates the root from the body of the tongue- includes the foramen cecum (remnant of thyroglossal duct)

Question 30

Teeth in adults

Answer 30

32: 16 in maxillary alveoli, 16 on mandibular alveoli Each Half = 2 incisors, 1 canine, 2 premolars, 3 molars

Question 31

Tongue Deviation in Hypoglossus Injury

Answer 31

Tongue deviates toward side of lesion due to unopposed action of the genioglossus muscle

Question 32

True Lips

Answer 32

Extend from nasolabial groove to the mucosa of the mouth

Question 33

Vermillion border

Answer 33

border between transitional zone and regular skin of the face

Question 34

Vestibule

Answer 34

U shaped region between cheeks and lips and teeth & gums - contains labial frenula and parotid papilla

Question 35

Which teeth hurt more when doing dental work, why?

Answer 35

Maxillary - mucosa is more tightly related to the bone on the upper jaw