INTERNAL LOWER FACE

Question 1

ORAL VESTIBULE

Answer 1

space between teeth/gingivae and the lips and cheeks

Question 2

WHAT MUSCLE FORMS THE FLOOR OF THE MOUTH AND WHERE DO BOTH SIDES JOIN

Answer 2

formed by the mylohyoid muscles that join in the midline at the mylohyoid raphe

Question 3

WHAT MUSCLES ATTACH TO THE INFERIOR MENTAL SPINE AND FORM PART OF THE FLOOR OF THE MOUTH

Answer 3

geniohyoids - they sit superior to the mylohyoids either side of the midline

Question 4

WHAT SEPARATES THE ANTERIOR 2/3 AND POSTERIOR 1/3 OF TONGUE

Answer 4

terminal sulcus

Question 5

MIDLINE GROOVE (OF TONGUE)

Answer 5

divides anterior section into L and R

Question 6

SUBLINGUAL CARUNCLE

Answer 6

opening of sublingual duct found inferior to tongue
also known as sublingual papilla

Question 7

WHERE ARE THE DEEP LINGUAL VEINS FOUND

Answer 7

on either side of the frenulum of the tongue
deep lingual veins and sublingual folds overly the sublingual glands

Question 8

WHAT SEPARATES L AND R TONGUE MUSCLES

Answer 8

sagittal septum
both intrinsic and extrinsic are separated by this

Question 9

FUNCTION OF INTRINSIC TONGUE MUSCLES

Answer 9

alter shape and size of tongue
attachments are entirely within tongue no bony attachments involved

Question 10

FUNCTION OF EXTRINSIC TONGUE MUSCLES

Answer 10

move the tongue e.g protrude, retract, elevate and depress

Question 11

WHAT ARE THE INTRINSIC MUSCLES OF THE TONGUE

Answer 11

superior longitudanal
inferior longitudanal
vertical
transverse

Question 12

WHAT ARE THE EXTRINSIC MUSCLES OF THE TONGUE

Answer 12

genioglossus
hyoglossus
styloglossus
palatoglossus

Question 13

FUNCTION OF SUPERIOR AND INFERIOR LONGITUDANAL MUSCLES OF TONGUE

Answer 13

intrinsic muscles - make tongue short and thick

Question 14

GENIOGLOSSUS

Answer 14

found superior to geniohyoid muscles
originates from superior mental spines of mandible
inferior fibres attach to hyoid and superior fibres blend with intrinsic muscles
protrudes tongue

Question 15

HYOGLOSSUS

Answer 15

found lateral to genioglossus muscles
originates from greater horn of hyoid and fibres blend with intrinsic muscles on lateral aspects of tongue
important for depressing sides of tongue

Question 16

STYLOGLOSSUS

Answer 16

originates from styloid process
fibres blend with intrinsic muscles and fibres of hyoglossus
elevates and retracts tongue

Question 17

PALATOGLOSSUS

Answer 17

Muscle of tongue AND soft palate
originates from palatine aponeurosis and fibres pass inferiorly to blend with intrinsic muscles of lateral tongue

Question 18

WHAT INNERVATES TONGUE MUSCLES

Answer 18

All CN XII except palatoglossus which is CN X

Question 19

WHAT GIVES GENERAL SENSATION TO TONGUE

Answer 19

anterior 2/3 = CN V3 via lingual nerve
posterior 1/3 = glossopharyngeal CN IX

Question 20

WHAT GIVES SPECIAL SENSATION TO TONGUE I.E TASTE

Answer 20

anterior 2/3 = CN VII via chorda tympani
posterior 1/3 = CN IX glossopharyngeal

Question 21

ARTERIAL AND VENOUS DRAINAGE OF TONGUE

Answer 21

arterial supply = lingual artery (branch of ECA)
venous drainage = deep lingual and dorsal lingual veins (both drain into IJV)

Question 22

WHERE DOES THE LINGUAL ARTERY ENTER THE TONGUE

Answer 22

between hyoglossus and genioglossus

Question 23

WHERE DO THE LINGUAL AND HYPOGLOSSAL NERVES ENTER THE TONGUE

Answer 23

external surface of hyoglossus

Question 24

WHAT PORTION OF THE GLAND DOES THE SUBMANDIBULAR DUCT ARISE FROM

Answer 24

the portion that lies between the mylohyoid and hyoglossus

Question 25

WHAT NERVE LOOPS UNDER THE SUBMANDIBULAR DUCT

Answer 25

lingual

Question 26

WHAT ARTERY SUPPLIES THE SUBLINGUAL AND SUBMANDIBULAR GLANDS

Answer 26

submental
lingual also by sublingual

Question 27

WHAT VEIN DRAINS THE SUBMANDIBULAR AND SUBLINGUAL GLANDS

Answer 27

submental

Question 28

WHAT FASCIA ENCLOSES THE SUBMANDIBULAR GLAND

Answer 28

deep investing cervical fascia

Question 29

WHERE IS THE SUBLINGUAL GLANDS FOUND

Answer 29

paired gland found in the sublingual fossa of the mandible superior to mylhyoid line - between mandible and genioglossus

Question 30

PARASYMPATHETIC INNERVATION OF THE SUBMANDIBULAR AND SUBLINGUAL GLANDS

Answer 30

From CN VII
preganglionic parasympathetic fibres originate in superior salvatory nucleus and travel with chorda tympani towards lingual nerve
Fibres synapse in submandibular ganglion then postsynaptic fibres make their way to the glands eithe rvia lingual nerve or without a nerve

Question 31

SYMPATHETIC INNERVATION OF THE SUBLINGUAL AND SUBMANDIBULAR GLANDS

Answer 31

comes from the superior cervical ganglia

Question 32

SUBLINGUAL DUCTS

Answer 32

sublingual ducts are numerous and drain into oral cavity via openings in the sublingual folds

Question 33

SUBMANDIBULAR DUCT

Answer 33

arises from portion of gland that lies inbetween hylohyoid and hyoglossus muscles, duct runs anteriorly opening into one of 3 orifices beside the sublingual papilla’s either side of the frenulum of the tongue

Question 34

MINOR SALIVARY GLANDS LOCATION

Answer 34

found diffusely embedded throughout submucosa of oral cavity
buccal , palatine , labial and lingual

Question 35

MINOR SALIVARY GLAND INNERVATION

Answer 35

above oral fissure - CN VII
below oral fissure - CN VII and CN V3

Question 36

MUMPS

Answer 36

viral infection seeing painful swelling of salivary glands - usually parotid
painful due to capsule

Question 37

SIALOTHIASIS (SALIVARY STONES/CALCULI)

Answer 37

stones that block salivary ducts
pain , swelling and lack of salivation
submandibular most common as duct runs anterior/ superior

Question 38

PTYALISM (EXCESSIVE SALIVATION)

Answer 38

occurs before vomiting but also assosciated with some diseases