Morphological Studies Of The Stomach Of Malayan Pangolin, Manis javanica
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CHAIRUN NISA'. Morphological Studies of the Stomach of Malayan
Pangolin, M$nb fivaniia, under the supervision of KOESWINARNING SIGIT,
JUNZO YAMADA and SRIHADI AGUNGPRTYONO.
The morpholcgy of the stomach of Malayan pangolin, Mank@mn/;cawas
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by
maawmpic,
scanning
electron
microscopic,
histological,
IfYrtochemiGl and immunohistochernical methods. The stomach was of a cashew
4red-bean
shape with short I-r
curvature. Instead of the simple columnar
9,
-
qithelium, almost the entire luminal stomach was lined by keratinized stratified
s&amous epithelium, except the pyloric gland region. Asymmetrical sphincterP
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I&shape was detected in lhe esophagml junction. The gasbic gland consisted
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4-. mucous, oxyntic, and pyloric glands. Mucous glands were clustered in three
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of the stomach: tbe median of the 1r-
curvature, around h e duct
c&fice of the oxyntic gland, and the pyioric a n t r ~ mregiofis. The mucous glands
9,
*re
-
lobulated and each lobe had a duct orifice. The glands consisted of mucous
$x cells which were rather cuboidal in shape with an oval or spherical basally
nudeus and endocrine cells. Oxyntic glands gathered to form a big
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glandular mass located in the median greater curvature. The gland consisted of
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mucous surface epithelium, mucous neck cells, parietal cells, chief cells and
endmine cells. The gland drained into the stomach lumen through a single
x-.
g
common duct positioned centrally at the pyloric site. Pyloric gland was located in
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the most distal portion of the stomach, near the junction of duodenum. The
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gland consisted of mumus type cells and endouine cells resembled those of
cous glands. Unlike the other two glands, the pyloric gland was lined by
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umnar epithelium, as those of common mammals. A big murosal fold named
s
ma shape' covered by numerous hard spines of pyloric teeth, was found in
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lesser curvature of the antnrm pyloric region. This structure was supported
considerable thickened of muscle layers and contained of small pebbles,
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icating that it might sewe as a triturating fundon, similar to the avian's
rd.
c"
3
B
By alcian blue-periodic acid Schiff (AB-PAS) staining, acid rnucopoly&rides were detected onty in duct orifice of mucous glands and n d c or pits
2
'Qss
" "53, 1
$5
~ Qs Q ss '
r
*
Q
~
CHAIRUN NISA'. Morphological Studies of the Stomach of Malayan
Pangolin, M$nb fivaniia, under the supervision of KOESWINARNING SIGIT,
JUNZO YAMADA and SRIHADI AGUNGPRTYONO.
The morpholcgy of the stomach of Malayan pangolin, Mank@mn/;cawas
Qdied
I
by
maawmpic,
scanning
electron
microscopic,
histological,
IfYrtochemiGl and immunohistochernical methods. The stomach was of a cashew
4red-bean
shape with short I-r
curvature. Instead of the simple columnar
9,
-
qithelium, almost the entire luminal stomach was lined by keratinized stratified
s&amous epithelium, except the pyloric gland region. Asymmetrical sphincterP
n r .
5 D S
5
Sn"
g kg
j 33
."r-.-. K:gP
2.
-
P
n
$2
3 3
I&shape was detected in lhe esophagml junction. The gasbic gland consisted
'
1
-
4-. mucous, oxyntic, and pyloric glands. Mucous glands were clustered in three
&om
D
of the stomach: tbe median of the 1r-
curvature, around h e duct
c&fice of the oxyntic gland, and the pyioric a n t r ~ mregiofis. The mucous glands
9,
*re
-
lobulated and each lobe had a duct orifice. The glands consisted of mucous
$x cells which were rather cuboidal in shape with an oval or spherical basally
nudeus and endocrine cells. Oxyntic glands gathered to form a big
-I7
glandular mass located in the median greater curvature. The gland consisted of
fD
Y
Q 0-
mucous surface epithelium, mucous neck cells, parietal cells, chief cells and
endmine cells. The gland drained into the stomach lumen through a single
x-.
g
common duct positioned centrally at the pyloric site. Pyloric gland was located in
2 9'r
-z
the most distal portion of the stomach, near the junction of duodenum. The
2
=.
d
r
%
Q
gland consisted of mumus type cells and endouine cells resembled those of
cous glands. Unlike the other two glands, the pyloric gland was lined by
s
4
-.Q
umnar epithelium, as those of common mammals. A big murosal fold named
s
ma shape' covered by numerous hard spines of pyloric teeth, was found in
3
$
lesser curvature of the antnrm pyloric region. This structure was supported
considerable thickened of muscle layers and contained of small pebbles,
B
=
icating that it might sewe as a triturating fundon, similar to the avian's
rd.
c"
3
B
By alcian blue-periodic acid Schiff (AB-PAS) staining, acid rnucopoly&rides were detected onty in duct orifice of mucous glands and n d c or pits