Lecture 9

Question 1

What is the Difference between Parenchyma and Stroma?

Answer 1

Parenchyma derive from Epithelium

Stroma is entirely surrounded by CT.

Question 2

What are septa?

Answer 2

Extensions of the capsule into the epithelial components of the gland. Divide the gland into subdivisions called LOBEs and LOBULES

Question 3

What are Lobes?

Answer 3

Subdivisions of a compound gland that is separated from adjacent Lobes by Septa

Question 4

What are Lobules and what are they equivalent to?

Answer 4

Subdivisions of a lobe. Each is equivalent to a simple, branched gland.

Question 5

What are 4 things about Acinus?

Answer 5

1. Secretory parts of lobule
2. Can be serous, mucous, mixed
3. Basement membrane covers outer surface of acinus
4. Myoepthelial cells are between basement membrane and secretory cells of acinus

Question 6

Where are myoepithelial cells derived from and what are their functions?

Answer 6

Derived from epithelium.

Help express secretions of the Acini into intercalated ducts.

Question 7

Where are INTRAlobular Ducts and what are they two types?

Answer 7

Lie within a lobule.

1. Intercalated Ducts: Cl-/ Bicarbonate exchange
2. Striated Ducts: Cl- (passive), Na (active) absorption and passively secrete Potassium

Question 8

What are INTERlobular Ducts, where are they found, and what are they lined with?

Answer 8

Formed by confluence of two or more striated ducts.

Found in Septae between adjacent lobes.

Lined with Pseudostratified columnar epithelium

Question 9

What are Minor Salivary glands made of?

Answer 9

Von Ebner
Labial
Palatal
Buccal

Question 10

What are Parotid glands made of?

Answer 10

Serous Acini

Question 11

Submandibular and Sublingual are what type of glands?

Answer 11

Mixed