Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Histology Exam III Material > Upper GI II > Flashcards

Upper GI II Flashcards

1
Q

________ opens into bottom of gastic pit

A

Narrow isthmus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

______ of the gastric gland extends into the lamina propria

A

Fundus (base)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Cells of the gastric gland

A
  • mucous neck cells
  • Stem cells in neck
  • Chief cells (zymogenic cells)
  • Parietal cells (oxyntic cells)
  • Enteroendocrine Cells (APUD cells)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Mucous neck cells of the gastric glands secrete

A

soluble mucous

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Chief cells (zymogenic cells) secrete

A

Pepsinogen

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Parietal cells (oxyntic cells) manufacture _______ and secrete ______

A 
Manufacture HCl (note that they secrete H+ and Cl-) 
They secrete intrinsic factor
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Enteroendocrine cells (APUD cells) function of gastric glands

A
  • secrete hormones

- Amine Precursor uptake and decarboxylation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Parietal cells are unique cell of the

A

gastric gland

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Histological characteristics of parietal cells

A

Large pyramidal shaped, eosinophilic cell

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Parietal cells produce ______ and secrete ____-

A

Produce HCl

Secrete intrinsic factor

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Parietal cells generate hydrogen ion from _______ similar to osteoclast

A

carbonic acid

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Parietal cells have prominent __________ lined by ______

A

Parietal cells have a prominent intracellular canaliculi lined by microvilli

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

_________ of the parietal cells are part of exocytosis-endocytosis funciton

A

Turbulovesicle pools

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Function of gastric intrinsic factor secreted by parietal cells

A

necessary for absorption of Vitamin B12 by the ileum

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Chief cells secrete

A

pepsinogen

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

small cells of gastric glands with secretory vesicles polarized toward basal surface in proximity to blood vessels

A

Enteroendocrine (APUD cell)

17
Q

The enteroendocrine cell (APUD cell) produce

A

peptide hormone and serotonin

18
Q

What increases surface area of the Intestines

A

= Length of small and large intestine

  • Plicae circulares (valves of Kreckring)
  • Villi
  • Microvilli
19
Q

What are the 3 levels of folding in the small intestine that increase surface area

A
  • Plicae
  • Crypt-Villus System
  • Microvilli
20
Q

These are folds of the mucosa, each with a submucosal core

A

Plicae

21
Q

Each villus contains a core of

A

lamina propria

22
Q

The crypts extend down between the _____ below the

A

Villi, below the bases of the villi

23
Q

Crypts and villi constitute _______ of the small intestine

A

glands

24
Q

Wall of villus is composed of ________ epithelium with _______

A

simple columnar epithelium with goblet cells

25
Q

Each villus contains a blind-ending lymphatic referred to as a

A

lacteal

26
Q

Each villus contains a ______ plexus

A

Capillary plexus

27
Q

Each villus contains

A
  • A core of lamina propria
  • A capillary plexus
  • a blind-ending lymphatic referred to as a lacteal
28
Q

Microvilli are covered with ______ and _______

A

Glycoprotein and glycocalyx (glycolipid coat)

29
Q

Glycocalyx (glycolipid coat of microvilli) contains an array of ________ enzymes . Name them? and who produces them

A

Brush-boarder enzymes

  • Maltase
  • Sucrase
  • Isomaltase
  • Lactase
  • Lipase
  • Peptidases
  • Produced by small intestinal epithelial cells
30
Q

Gastric glands are simple ______ ______ glands

A

Gastric glands are simple branched tubular glands

31
Q

Bundles of actin filaments within microvillus are covered by a

A

formin cap

32
Q

The actin filaments of a microvillus are tied to terminal web intermediate filaments (cytokeratins) via

A

spectrin fibrils

33
Q

Microvilli are supported by

A

actin microfilaments

34
Q

Actin filaments of microvilli are tied to ________ via spectrin fibrils

A

Terminal web intermediate filaments (cytokeratins)

35
Q

Actin filaments of microvilli are bound to plasma membrane covering villus via membrane-linking proteins____ and ____

A
  • Myosin I

- Calmodulin

36
Q

Actin filaments of microvilli are bound to each other via actin cross-linking proteins _____ and _____

A

villin and fimbrin

Histology Exam III Material (15 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions