Brainscape's Knowledge GenomeTM

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


See full index

Histology - Junqueira's > Small Intestine to Anus > Flashcards

Small Intestine to Anus Flashcards

1
Q

Small intestine mucosa

A

simple columnar epithelium - with microvilli

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

Number of microvilli per enterocyte increasing absorptive function by 20-fold

A

3000

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

Small intestine villi is composed of

A

Lining epithelium + lamina propria

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

Small intestine plicae circulares is composed of

A

mucosa + submucosa

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

(1) Absorptive cells of the small intestine
(2) Mucous-secreting cells of the small intestine

A

(1) Enterocytes
(2) Goblet cells

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

Cypts of Lieberkuhn morphology

A

Simple tubular gland

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Cells of the crypt of lieberkuhn

A
  • enterocytes
  • goblet cells
  • paneth cells
  • microfold cells
  • enteroendocrine cells

enteroendocrine cells are scattered along the crypts and secrete specific hormones for digestion

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

Paneth Cell secretions

A

*phospholipase
*defensins
*lysozymes

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

Present in the lamina propria of small intestine

A

Lacteals

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

Specialized submucosal structure of duodenum

A

Brunner’s/Duodenal gland

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

Specialized submucosal structure of ileum

A

Peyer’s patches

can also be found in the lamina propria

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

Specialized submucosal structure of jejunum

A

None

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

Microfold cells

A

antigen presenting cells

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

Taenia coli in the large intestine is formed by

A

narrowed thickenings of the outer longitudinal muscle layer

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

(Present/Absent)
Villi in the large intestine

A

Absent

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

(small intestine/large intestine)

More abundant goblet cells

A

large intestine

17
Q

Absorptive cells in the large intestine

A

colonocytes

18
Q

(small intestine/large intestine)

Larger and longer crypts of lieberkuhn

A

large intestine

19
Q

(Present/Absent)
Microvilli in large intestine

A

Present

20
Q

Length of Appendix

A

6 to 7cm

21
Q

Distinguishing structure in appendix

A

Lymphoid nodules

22
Q

(Present/Absent)
Taenia coli in the appendix

A

Absent

23
Q

(Present/Absent)
Villi in Appendix

A

Absent

24
Q

Distinguishing factor in Rectum

A

Transverse rectal folds or Houston’s valves

Histologically, rectal features are similar to large intestinal features

25
Q

3 histological zones of the anal canal

A
  1. colorectal
  2. transitional
  3. squamous
26
Q

Small intestine equivalent to stomach rugae

A

Plicae circularis or valves of kerckring

27
Q

Enteroendocrine cells (#3)

A

(1) s cells - secretin
(2) Mo cells - motilin for peristalsis
(3) I cells - cholecystokinin

28
Q

Secretin action

A

Causes pancreas to release bicarbonate to neutralize acidic chyme

29
Q

Causes gallbladder to contract and release bile

Is triggered by fat

A

CCK - cholecystokinin

30
Q

Shortest portion of the small intestine

A

Duodenum

31
Q

Location of the small intestine’s gut-associated lyphoid tissue

A

Lamina propria

has abundant B-cells, plasma cells, & microfold cells where the loose CT of the lamina propria will appear darker than the dense irregular CT of the submucosa

32
Q

Blind ending capillary for the absorption of dietary fat

Fat absorbed in the form of chylomicrons

A

Lacteals

33
Q

(True/False)

Similar to the ileum, the appendix has lymphoid nodules at the antimesenteric border

antimesenteric - the border that is not protected by the mesentery

A

False

Lymph nodes in the appendix are dispersed throughout the organ

34
Q

Abundant cells in the Peyer’s patches

A

Microfold cells

35
Q

Conspicous accummulations of adipose or fatty tissues on the external surface of the large intestine

A

Epiploic/Omental Appendages

36
Q

Large sacculations on the wall of the colon

A

Haustra

37
Q

What are the secretions of the Brunner’s glands?

aka duodenal glands

A

Alkaline mucous & Bicarbonate

neutralizes acid from incoming chyme

Histology - Junqueira's (7 decks)

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