Oral Cavity, Tongue, Floor of Mouth

Question 1

what are the boundaries of the oral cavity

Answer 1

hard and soft palate, tongue, cheeks

Question 2

what does the dental arches separate the oral cavity into

Answer 2

oral vestibule and oral cavity proper

Question 3

what is the oral fissure

Answer 3

opening between lips

Question 4

what is the oral vestibule

Answer 4

space between teeth and cheeks

Question 5

which arteries anastomose in the lips

Answer 5

superior and inferior labial arteries (from facial artery)

Question 6

what is the nerve supply to the lips

Answer 6

trigeminal nerve (maxillary and mandibular)

Question 7

where does the lymph drainage of the lips go to

Answer 7

submandibular and submental nodes

Question 8

what is the main muscular component of the lips

Answer 8

orbicularis oris

Question 9

what is the main muscular component of the cheeks

Answer 9

buccinator

Question 10

what is the innervation of the cheeks

Answer 10

buccal branches of mandibular nerve

Question 11

what is the blood supply to the cheeks

Answer 11

buccal branches of maxillary artery

Question 12

what is the labial frenulum

Answer 12

mucosal fold connecting gingiva to lips in midline

Question 13

what is the buccal frenulum

Answer 13

mucosal folds observed laterally

Question 14

what is the floor of the mouth formed by

Answer 14

mylohyoid

Question 15

where does the mylohyoid attach to

Answer 15

mylohyoid line and body of hyoid

Question 16

what do the mylohyoids attach in the midline to

Answer 16

mylohyoid raphe

Question 17

what is the mylohyoid supplied by

Answer 17

nerve to mylohyoid

Question 18

which salivary gland wraps around the free edge of the mylohyoid

Answer 18

submandibular

Question 19

what are the different types of papilla in the tongue

Answer 19

fungiform, foliate, vallate, filiform

Question 20

where are the fungiform papilla

Answer 20

apex and margins of tongue

Question 21

where are the foliate papilla

Answer 21

lateral border of superior surface of tongue

Question 22

where are the vallate papilla

Answer 22

anterior to terminal sulcus ( posterior tongue )

Question 23

what is the only papilla that doesnt have taste budes

Answer 23

filiform

Question 24

what lies behind the terminal sulcus on the tongue

Answer 24

lymphoid nodules

Question 25

what are the lymphoid nodules collectively known as

Answer 25

lingual tonsils

Question 26

what is the midline of the tongue marked by

Answer 26

lingual frenulum

Question 27

what can be seen on each side of the lingual frenulum

Answer 27

lingual vein and sublingual and submandibular ducts

Question 28

what are the muscles of the tongue separated by

Answer 28

sagittal septum

Question 29

what are the intrinsic muscles of the tongue

Answer 29

superior longitudinal vertical transverse inferior longitudinal

Question 30

what do the intrinsic muscles of the tongue do

Answer 30

change size and shape of tongue

Question 31

what do the superior longitudinal and inferior longitudinal muscles work together to do

Answer 31

make tongue short and thick and retract tongue

Question 32

what do the vertical and transverse muscles of the tongue do

Answer 32

make it long and narrow

Question 33

what are the extrinsic muscles of the tongue

Answer 33

palatoglossus styloglossus hyoglossus genioglossus

Question 34

what do the extrinsic muscles of the tongue do

Answer 34

protrude, retract, elevate and depress the tongue

Question 35

where does the genioglossus attach

Answer 35

superior mental spines of mandible, hyoid bone

Question 36

what does the genioglossus do

Answer 36

protrudes tongue

Question 37

where does the genioglossus lie

Answer 37

superior to geniohyoid muscles

Question 38

where does the hyoglossus attach to

Answer 38

greater horn of hyoid and intrinsic muscles on lateral aspects of tongue

Question 39

what does the hyoglossus do

Answer 39

depress the sides of the tongue

Question 40

which artery supplies the tongue

Answer 40

lingual artery (from ECA)

Question 41

where does the lingual artery enter the tongue

Answer 41

between hyoglossus and genioglossus

Question 42

where do the hypoglossal and lingual nerve enter the tongue

Answer 42

on external surface of hyoglossus

Question 43

where does the styloglossus attach to

Answer 43

styloid process of temporal bone and intrinsic muscles of tongue

Question 44

what does the styloglossus do

Answer 44

elevates and retracts the tongue

Question 45

what does the palatoglossus attach to

Answer 45

palatine aponeurosis and intrinsic muscles on lateral surface of tongue

Question 46

what are the muscles of the tongue innervated by

Answer 46

hypoglossal nerve (palatoglossus supplied by vagus)

Question 47

what is the innervation for general sensation to the tongue

Answer 47

anterior 2/3 = mandibular posterior 1/3 = glossopharyngeal

Question 48

what is the innervation for special sensation to the tongue

Answer 48

anterior 2/3 = facial nerve (chorda tympani) posterior 1/3 = glossopharyngeal

Question 49

which veins drain the tongue

Answer 49

deep lingual and dorsal lingual