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T1 - Histology Midterm 3 > Histo. Digestive Glands > Flashcards

Histo. Digestive Glands Flashcards

Salivary gland, liver, pancreas, GB

1
Q

_______ gland secretions are to lubricate and moisten the oral mm

A

accessory Salivary gland

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2
Q

Name 4 accessory salivary glands

A
  1. labial
  2. buccal
  3. lingual
  4. palatine
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3
Q

name 3 major salivary glands

A

parotid
submandibular
sublingual

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4
Q

_____ splits starches and immunoglobulin (IgA)

A

Amylase

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5
Q

____ are the secretory untis

A

acini

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6
Q

_____ acini are rounded. Cells are pyramidal with rounded nuclei and granular cytoplam. They secrete a watery albuminous secretion

A

serous acini

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7
Q

Serous acini secrete a _____ secretion

A

watery albuminous

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8
Q

_____ acini secrete mucous

A

Mucous

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9
Q

_____ acini are mucous acini with a group of serous cells in the form of a demilune

A

Mixed acini

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10
Q

Serous __ overlie the acinar cells under cover of a basement membrane in mixed acini

A

serous demilunes

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11
Q

The secretion of serous cells reach lumen of mixed acini via _____ btw mucous cells

A

intercellular canaliculi

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12
Q

Name the 3 acini secretory units in the salivary gland

A
  1. serous acini
  2. mucous acini
  3. mixed acini
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13
Q

The secretion of the acini is collected by a system of ____

A

ducts

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14
Q

____ ducts lie inside lobules and between acini

A

intralobular ducts

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15
Q

Intralobular ducts start as narrow ducts draining acini called ____ ducts (in salivary glands)

A

intercalated ducts

simple squamous

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16
Q

Intercalated ducts unit to form ___ ducts

A

Secretory striated ducts

simple cuboidal

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17
Q

______ ducts lie in CT trabeculae btw lobules . They are a union of several striated ducts

A

Interlobular ducts

simple columnar

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18
Q

______ ducts run btw lobes and result from union of several interlobular ducts

A 
Interlobar ducts 
(psuedostratified)
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19
Q

____ ducts are a union of several interlobar ducts . They open into the oral cavity

A

main ducts

stratified squamous non keratinized

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20
Q

____ ducts open into the oral cavity

A

Main ducts

stratified squamous non keratinized

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21
Q

_______ cells help to squeeze secretions out of acini and propagation along the ducts

A

Myoepithelial or basket cells

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22
Q

__ glands have 100% serous acini and intercalated ducts are long

A

parotid glands

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23
Q

IN _____ glands the acini are 80% serous and 20% mucous and mixed . Intercalated ducts are short

A

submandibular ducts

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24
Q

____ glands have 99% acini mucous and mixed, serous acini are rare (1%). Intercalated ducts are absent

A

sublingual glands

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25
mucous acini with a group of serous cells for a _____
demilunes
26
_____organ is a mixed exo-endocrine gland
Pancreas
27
The acini in the pancrease secrete ___
pancreatic juice | exocrine portion
28
The exocrine portion of the pancrease secretes ______ through the _____
pancreatic juice through the acini
29
The pancreas acini are 100% __
serous
30
In the pancreas the iintralobular ducts line their lunima as ______
centro-acinar cells
31
there are no _____ ducts in the pancreas, unlike in the oral cavity
striated ducts
32
The _____ duct opens into the duodemun and is limed by simple columnar with some goblet cells
main pancreatic duct
33
The main pancreatic duct is lined with ____ cells
simple columnar with some goblet cells
34
**______ is the endocrine portion of the pancreas
Islet of langerhans
35
Islet of langerhans are endo/exo crin?
endocrine
36
**"A" cells (Alpha cells) secrete _____ hormone
glucagon
37
"A" cells are a part of the exo/ end crine portion of the pancreas
endocrine
38
______ elevates blood glucose level . | It is secreted by ______ cells in the pancreas
glucagon secreted by alpha cells
39
_____ forms 20% of the islet of langerhans
Alpha cells
40
_____ form about 75% of the islet of langerhan
Beta cells
41
_____ secrete hormone insulin which reduces blood glucose level
beta cells
42
What does insulin do?
reduce blood glucose levels
43
What does glucagon do?
elevate blood glucose level
44
The reserve cell for "A" and "B" cells
C cells no granules
45
____ secrete the hormone somatostatin
D cells
46
______ causes inhibition of surrounding endocrine cells. Secreted by D cells
Somatostatin
47
Largest gland in the body
Liver
48
The liver is a mixed _________ gland
exo-endocrine gland
49
The exocrine secretion in the liver is ___
bile
50
The endocrine secretion in the liver is _____
plasma proteins
51
What passes through the portal hepatis
1. portal vein 2. Hepatic art. 3. Hepatic ducts (bile ducts)
52
The opening in the liver
portal hepatis
53
The liver is covered by a capsule of CT under its visceral peritoneum called _____
glisson's capsule - capsule thickens around the portal hepatis
54
**_____ is the functional unit of the liver
hepatic lobules
55
_____ are in the center of the hepatic lobules
central venules
56
Hepatic art, bile duct, and portal vein make up the _____
portal triad
57
___ are the areas of CT containing the portal triad vessels
portal area
58
portal veins that are unaccompanied by branches of hepatic artery or bile duct are ______
sublobular central venules
59
The parenchyma of hepatic lobules is made up of : (3)
hepatocytes bile canaliculi hepatic sinusoids
60
______ drain all hepatic sinusoids
central venules
61
_____ are branching cords radiating from te central venule and separated by hepatic sinusoids
Liver cells or hepatocytes
62
Hepatic sinusoids are lined by phagocytic cells called_______
von kupffer cells
63
phagocytic cells in the liver
von kupffer cells
64
____ are the sites where bile secreted by liver cells is discharged
bile CANALiculi
65
_______ are ducts that bile canaliculi drain into
Herring's ductules
66
Liver Sinusoids drain into ____
central venules
67
Central venules drain into ____
sublobular veins
68
Sublobular veins unite to form the ____ in the liver
Hepatic vein
69
____--> central venules --> sublobular vein --> ______
sinusoids hepatic vein
70
Sinusoids --> _______ --> ______--> hepatic vein
central venules --> sublobular
71
2 fxn of the GB
1. concentrated bile | 2. stores bile
72
**The surface area of the GB mucosa is made of _______ cells
simple columnar
73
The musculosa of the GB is _____ muscle
smooth
74
_____ is the outer most fibrous layer of the GB
adventitia
75
Peritoneum is made of _____ cells called ___
simple squamous called mesothelium
76
What is mesothelium
simple squamous peritoneum cells
77
______ regulates the flow of bile into the intestine
Sphincter of Oddi

T1 - Histology Midterm 3 (5 decks)

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