Histo Of Stomach

Question 1

GI tract wall has 4 layers:
______
_______
__________
_______

Answer 1

Mucosa

Submucosa

Muscularis Externa

Serosa or Adventitia

Question 2

STOMACH

Epithelium: ______ epithelium

Muscularis ____ has an additional _____ layer of muscle

Answer 2

Simple columnar

oblique

externa

Question 3

Mucosa
(Thin or Thick?)

(smooth or rough?) surface

_______

_______ to ____ in colour

Answer 3

Thick

Smooth

velvety

Reddish brown

pink

Question 4

STOMACH

In contracted state mucosa is folded to form _____.

Answer 4

RUGAE

Question 5

Gastric rugae are _____ & more marked towards _____ and ____

Answer 5

Longitudinal

pyloric & greater curvature

Question 6

Actually rugae are (small or large?) folds in ______ connective tissue

Answer 6

Large

sub mucosal

Question 7

Rugae is Obliterated when stomach is _____

Answer 7

distended

Question 8

Stomach Epithelium

Appears as _____ due to (small or large?) gastric ____ .

Answer 8

honey combed

Small

pits

Question 9

Gastric pits

Aka

Answer 9

foveola

Question 10

Base of gastric pits receives ———- which extend deep into ________

Answer 10

gastric glands

lamina propria

Question 11

Types of gastric glands

_____
____
_____

Answer 11

Cardiac

Principal

Pyloric

Question 12

Principal gastric glands

Found In _____ and _____

Cardiac gastric glands

Situated near the _____

Pyloric glands
numerous _______ and _____ cells predominate

Answer 12

body & fundus

cardia

mucous & entero endocrine

Question 13

Principal gastric glands

Are Highly differentiated

T/F

Answer 13

T

Question 14

Principal gastric glands

Found In _____ and ____

Are made of different types of cells                                                   
                               
\_\_\_\_\_
\_\_\_\_
\_\_\_\_\_
\_\_\_\_\_
\_\_\_\_\_\_

Answer 14

body & fundus

Chief
Parietal
Mucous
Stem
Entero endocrine

Question 15

Cardiac glands

Situated near the _____
_______ cells predominate

Pyloric glands

numerous _______ and ———- cells predominate

Answer 15

cardia

Mucous secreting

mucous & entero endocrine

Question 16

Mucous neck cells: found in the ____ portion

Parietal cells: found in ____ portion secrete ____ and _____

Answer 16

duct

mid

HCl & intrinsic factor for B12 absorption

Question 17

CHIEF CELLS:

Found at ____ of gland

secretes _______

Answer 17

base

pepsinogen

Question 18

pepsinogen is a precursor molecule to _____ (an enzyme that digests ____

Answer 18

pepsin

protein

Question 19

MUCOSAL BARRIER: protects the stomach from its own secretions

__________ overlies a thick coating of _______

_________ between epithelial cells are impermeable to HCl

Epithelium is replaced every _______

Answer 19

Viscous mucous

HCO3- rich mucous

Tight junctions

3-6 days

Question 20

Lamina Propria

Found in between the glands

Contain gastric ______ which are aggregations of lymphoid tissue
A __________ plexus is also present

Answer 20

follicles

periglandular vascular

Question 21

Stomach Muscularis mucosa

______
________
______

Answer 21

Inner circular
Outer longitudinal
Ext circular in some places

Question 22

Muscularis externa of stomach

______ fibres
_____ fibers
______ fibers

Answer 22

Oblique

Circular

Longitudinal

Question 23

Stomach muscularis externa

Oblique fibres
Limited to _______
Most developed near the ______

Circular fibres
Form a uniform layer (internal or external?) to oblique fibres
At the pylorus forms __________

Answer 23

gastric body

cardiac orifice

External

annular pyloric sphincter

Question 24

Longitudinal fibers of muscularis externa

Arranged in 2 groups
1st set radiates from ______, best developed along the ______

2nd set commence in the ____, passes to (left or right?) , some fibres pass to duodenum, deeper fibres interlace with ______

Muscle action: upper region of stomach forms an area of ______, lower region has a ____- like action mixing & delivering the contents to duodenum

Answer 24

cardiac orifice; curvatures

body

Right; pyloric sphincter

storage

pump