Lecture 7 And 8 8/30/18

Question 1

What are the three types of major salivary glands?

Answer 1

Parotid Glands

Submandibular Glands

Sublingual glands

Question 2

What is a parotid gland?

Answer 2

Composed of only serous acini Apical regions contain zymogen granules RER predominates in basal regions of secretory cells

Question 3

What is a submandibular gland?

Answer 3

Mixed w/ both muscles and serous acini but serous is predominate For me crescent shape around mucous acini and are called serous demilunes Myoepithelial cells around acini

Question 4

What is a sublingual glands?

Answer 4

Mixed glands but mucous acini are predominate Flatten nuclei at basal poles of cells Mucous acini (pale in appearance and PAS+)

Question 5

When looking at diagrams, what are the differences b/w striated and intercalated ducts

Answer 5

Striated ducts are…… Simple Cuboidal to simple high Cuboidal Bigger than acini

Question 6

What are ways to differentiate a interlobular duct from an intralobular duct?

Answer 6

Surrounded Connective tissue

Question 7

How do connective tissue and epithelial tissue compare?

Answer 7

CT. Epithelial Low cellularity High cellularity abundant matrix Varying protein fibers Classified (matrix,density,organization)

Question 8

What are the categories of connective tissue

Answer 8

Embryonic - Wharton jelly Adult - Elastic,Reticular, Loose, and Dense Special- adipose, cartilage, bone, Hematopoietic

Question 9

What is the fibrous composition of adult CT?

Answer 9

Loose - Collagen & ELastic; Loosely arranged Dense - Collagen (includes regular and irregular forms) Reticular - reticular fibers Elastic - Elastic Fibers

Question 10

What is embryonic tissue and where is it located?

Answer 10

Umbilical cord and pulp of developing teeth Called Wharton jelly in umbilical cord Composed of some collagen and elastic fibers and an abandons of ECM

Question 11

What is loose (areolar) CT

Answer 11

*(Adult) *Fibroblasts > Fibrous components *Type 1 Collagen +elastic fibers Beneath Epi T of most organs Fibroblasts,mast cells, macro phases and capillaries

Question 12

What is dense connective tissue?

Answer 12

Dense Fibrous components > Fibroblasts Regular Run parallel Thick organize bundles separated rows of fibroblasts tendons and ligaments Irregular Not organized parallel boundless Thick bundles of Collagen fascia, submucosa of GI

Question 13

What is reticular CT

Answer 13

Dense irregular w/ reticular fibers Lymphatic T Show up brown or black in Sliver stain Does not work with H and E stain

Question 14

What is elastic T?

Answer 14

Dense irregular w/ elastic fibers creating discounting lamellae Assoc blood vessels

Question 15

What are the differences b/w white and brown fat

Answer 15

White Unilocular Brown Multilocular Abundant mitochondria =brown color More cytoplasm

Question 16

What is adipogenesis?

Answer 16

Mesenchymal cells that have not differentiated become white adipose cells. White cells can only become Brown. But once you go brown you come back around

Question 17

What is lepton? (Not testable, just in case)

Answer 17

Tells you if you release fat or store fat. Assoc with insulin

Question 18

How are Collagen type 1 created??

Answer 18