Disgetive Glands (In Class)- Cole Flashcards Preview

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Exocrine glands have what? how are these glands classified?

ducts; branching of ducts, secretory units, secretory products, or by secretory mechanism

1

what are the 3 major salivary glands?

parotid, submandibular and sublingual

2

what do salivary glands open into?

intercalated ducts

3

submandibular gland has what kind of secretions?

S & M "not that kind"

4

what secretions from parotid gland?

serous gland

5

what secretions from sublingual gland?

mucous

6

plasma cells in glands secrete what?

IgA

7

what are the primary functions of saliva?

lubricate, protective function, and digestive function (ligual lipase, and amylase)

8

what enzymes do parotid glands produce?

amylase, peroxidase, lysozyme

9

What kinds of things lead to tumors of parotid glands?

mumps and rabies

10

what are complications of mumps?

orchitis (inflammation of testes) and meningitis

11

what can orchitis lead to?

sterility

12

what gland is the most prone to slow-growing benign tumors? what is surgery complicated by?

parotid; facial n.

13

what do mucous cells of submandibular glands produce?

mucin

14

what kind of gland is sublingual?

branched

15

what is the endocrine component of pancreas? how much of volume is this?

islet of Langerhans; 2%

16

main function of islet of langerhans?

glucose metabolism

17

exocrine part of pancreas?

acinus

18

ducts from pancreatic acinar cells are lined with?

centroacinar cells

19

centroacinar cells do what?

secrete aqueous bicarb and mucin

20

pancreas secretion are under control of what?

CCK

21

where does CCK bind?

acinar cell receptors

22

where does secretin act?

duct cells to adjust pH

23

what will increase protease synthesis?

protein rich diet

24

carbohydrate rich diet increases synthesis of?

amylases and decrease proteases

25

amylase gene expression is regulated by?

insulin (thru insuloacinar portal system: internal circulation within pancreas)

26

what usually results in acute pancreatitis?

heavy meals or excessive alcohol ingestion

27

acute pancreatitis involves what?

premature activation of pancreatic enzymes (trypsinogen and trypsin) and inactivation of trypsin inhibitor; autodigestion of pancreatic acini

28

Blood is supplied to liver by?

protal vein (75-80%) transports blood from GI, spleen, and pancreas; hepatic artery (20-25%) via interlobar and interlobular a.

29

largest gland in the body?

liver