Salivary Glands

Question 1

What are salivary glands?

Answer 1

are glands that open or secrete into the oral cavity

• most are small glands in the submucosa or mucosa of the oral epithelium
• other larger glands, which include the paired parotid, submandibular and sublingual glands

Question 2

What and the location and what forms the parotid gland?

Answer 2

PG- entirely outside boundaries of the oral cavity in a shallow triangular shaped trench formed by;
1. posteriorly= SCM
2. anteriorly: rams of mandible
3/ superiorly: the base of the tench is formed by external acoustic meatus and posterior aspect of zygomatic arch

Question 3

Where does the parotid duct pass ?

Answer 3

1. ant across etc surface of master ms
2. turns medially to penetrate buccinator ms
3. opens adjacent to crown of 2nd upper molar

Question 4

what does the parotid gland enclose?

Answer 4

1. external carotid artery
2. retromandibular vein
3. facial nerve (VII)

Question 5

What supplies the parotid gland?

Answer 5

1. posterior auricular 2. superficial arteries ( branches of external carotid arty)

Question 6

How is venous drainage of parotid gland achieved?

Answer 6

via retromandibular vein

Question 7

Innervation of parotid gland

Answer 7

sensory: V3
autonomic: CNIX

Question 8

Descirbe hook shaped submandibular glands:

Answer 8

lager arm of hook: is directed forward in horizontal plane below the mylohyoid muscle

smaller arm of hook ( deep par) of gland loops around posterior margin of mylohyoid muscle to enter and lie within the floor of the oral cavity opening on summit of a small sublingual pail beside base of frenulum of the tongue

Question 9

blood supply of submandibular

Answer 9

sublingual and submittal arteries and veins

Question 10

what loops under the submandibular duct?

Answer 10

lingual nerve

Question 11

innervation of submandibular nerve

Answer 11

CNVII

Question 12

Sublingual glands location

Answer 12

immediately lateral to submandibular duct and associated lingual nerve in floor of oral cavity

–.each lies directly against the medial surface of the mandible where it forms a shallow groove ( sublingual fossa) superior to anterior 1/3 of mylohyoid line.

• superior margin raises an elongate fold of mucosa ( sublingual fold) which extends from the poasterolateral aspect of the floor od the oral cavity to the sublingual papilla beside the base of the frenulum of tongue at midline anteriorly

Question 13

blood supply of sublingual gland

Answer 13

submental arteries and veins

Question 14

innervation of sublingual gland?

Answer 14

autonomic CNVII