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MD4001 Anatomy > Parotid, submandibular and sublingual glands > Flashcards

Parotid, submandibular and sublingual glands Flashcards

1
Q

what are the functions of the salivary glands

A 
•Begin digestion of starches
•Keep mouth moist
•Lubricate food
•(helps) prevent tooth decay
•Controlling bacterial flora of
oral cavity
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2
Q

what is serous saliva

A

amylase, lysozyme, protein secreting

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3
Q

what is mucous saliva

A

contains sialomucins

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4
Q

what is the largest salivary gland

A

parotid

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5
Q

what is the parotid sheath

A

part of deep investing fascia of the neck

capsule that encloses the parotid gland

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6
Q

where does the parotid gland enter the mouth

A

2nd upper molar

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7
Q

what is the function of the fatty tissue around the parotid

A

allows flexibility around the mandible

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8
Q

leaves via the internal acoustic meatus and exits via the stylomastoid foramen

A

facial nerve

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9
Q

what two branches of the facial nerve are given off before it enters the parotid gland

A

posterior auricular and digastric

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10
Q

what nerve can be damaged in removal of tumours in the parotid gland

A

facial

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11
Q

what structures are found in the parotid gland

A

retromandibular vein

external carotid artery

facial nerve

parotid lymph nodes

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12
Q

what is the secretomotor aka psymp innervation to the parotid gland

A

glossopharyngeal

and auriculotemporal branch of V3

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13
Q

what is the sympathetic innervation to the parotid gland (causes vasocontriction and reduction in saliva)

A

superior cervical ganglia on the ECA

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14
Q

what is the cutaneous innervation over the parotid gland

A

auriculotemporal (v3)

great auricular (c2 and 3)

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15
Q

where are the submandibular glands

A

found along the mandible above and below mylohyoid muscle

the gland wraps around mylohyoid

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16
Q

what nerve loops around the submandibular glands

A

lingual

17
Q

what are the relations of the submandibular gland

A

digastric muscle
facial artery
mylohyoid muscle
hypoglossal nerve

18
Q

where does the submandibular duct open into

A

base of the frenulum (sublingual papilla)

19
Q

what is the blood supply to the submandibular gland

A

submental arteries (branch of facial)

20
Q

what is the venous drainage of the submandibular gland

A

submental veins to lingual and facial veins

21
Q

what gland is mostly mucous secreting

A

sublingual

22
Q

where is the sublingual gland

A

floor of the mouth between the mandible and hyoglossus muscle, lateral to the submandibular duct and lingual nerve

sits in the sublingual fossa of the mandible, superior to the anterior part of the mylohyoid line

23
Q

what is the blood supply to the sublingual gland

A

same as submandibular - sublingual arteries and submental

submental veins to lingual and facial veins

24
Q

what are the relations of the sublingual gland

A

lingual nerve
submandibular duct
hypoglossal nerve

25
Q

what is the parasympathetic innervation of sublingual and submandibular glands

A

chorda tympani (cn 7) plus lingual nerve from v3

26
Q

what is the sympathetic innervation to the submand and subling glands

A

superior cervical ganglia on the eca

27
Q

where in the oral cavity can minor salivary glands be found

A

buccal
palatine
lingual
labial

28
Q

what is the innervation of minor salivary glands

A

cn 7 and 5

29
Q

what is a mucocoeles

A

swelling due to blockage of the associated duct

30
Q

what is mumps

A

virus

painful swelling over the salivary glands (parotid usually)

31
Q

what is the treatment for mumps

A

supportive only

may spread > meningitis

32
Q

what is sialolithiasis

A

salivary calculi

found in ducts- pain, swelling, lack of salivation

usually submandibular

surgical resection

33
Q

what is ptyalism

A

excess salivation

often prior to vomiting

34
Q

what proportion of salivary gland tumours are benign

A

80%

35
Q

what is the most common salivary gland tumour

A

pleomorphic adenoma

painless swelling
numbness/ weakness

resection or parotidectomy

MD4001 Anatomy (45 decks)

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