Duodenum
Introduction
-
:
• It in
first ,
shortest ,
widest and most fixed past a small Intestine .
9T extends from pylorus to duodena
jejunal flexure
•
.
Named its
•
so
by Herophilus as
length = to combined width a 12
finger ,
o
g t in about 25 cm .
°
9T in C -
shaped and in located
abdominal level
in the
cavity above
of umbilicus opposite to 21 , 12,13 .
Parts e
Relations :
duodenum into 4
parts
25
long :
o
cm
(a) Superior = 5cm [ First Part ]
(b) Descending = F. 5cm [ second Part ]
(c) Horizontal = 10cm [ Third Part ]
( d,
Ascending = 2.5 cm
[ fourth Part ]
First Part :
-
°
It
develops from foregut .
It retro peritoneal
only partly
. in
It distensible
.
in
freely mobile d .
. It has no circular folds in mucous membrane
of its initial
2- 5 cm
. gt in site for duodenal ulcer
.
Supplied by branches g coeliac trunk / artery .
② Meditates
( med notes .
in )
, Relations :
•
ANTERIORLY : Quadrate of liver and gallbladder
lobe .
POSTERIORLY Postal Vein gastro duodenal
Artery and CBD
•
: ,
°
SUPERIORLY :
Epilploic foramen being separated from it by
portal viand bile duct .
°
INFERIORLY : Head &
Neck Pancreas
og
.
Second Point :
'
• Its
upper half develops from foregut and lower
half from midgut .
o gt lies behind transverse meso colon -
bile duct the ducts
accessory pancreatic
and
o
Gt receives ,
chief .
It the
. in
only part og intestine supplied by double rows 7 vasa
recta
arising from
,
anterior and
posterior pancreatic o duodenal A .
Relations :
ANTERIORLY Gallbladder and liver traverse colon
°
lobe of
right
:
, ,
meso colon and coils g small intestine .
POSTERIORLY :
Right kidney and
right renal vessels right edge
•
,
inferior and muscle
og vena Cava
Right psoas major .
°
MEDIALLY : Head 7 Pancreas .
colic flexure and sight
° LATERALLY :
Ascending colon ,
right .
lobe g liver .
, Third Pact :
Relation :
•
ANTERIORLY : Root g
mesentery , superior
mesenteric vessels ,
&
coils g
jejunum .
POSTERIORLY right ureter abdominal
Right IVC
°
:
psoas major , , ,
aorta ,
and
right gonadal xeesele .
SUPERIORLY Head with its uncinate
•
:
of pancreas process
.
INFERIORLY Coils
• :
og jejunum .
Fourth Past :
Relation :
°
ANTERIORLY : Transverse colon & transverse meeocolon .
•
POSTERIORLY left psoas major muscle left
: ,
sympathetic chain ,
left gonadal vends and inferior ,
mesenteric vein .
SUPERIORLY :
Body of pancreas
° .
°
ON TO LEFT :
left kidney I left center
ONTO RIGHT :
Upper part Root
•
g 9 .
, Interior of Duodenum :
°
The mucous membrane
of the duodenum presents circular
folds
called Valves
of Kero
Kring but
they begin in 2nd
part .
•
Second Part also have :
( as
Majord papilla :
r 8 -
to cm distal to pylorus
•
on its summit the
opens
common
hepa to pancreatic
duct .
do , minded papilla :
to duodenal papilla
2cm
proximal major
° .
•
Accessory duet its summit
opens on
-
cc , Arc circulars :
forms arch above
major duodenal
the hood
r
papilla like
an
.
( Monk 's hood )
② Meditates
( med notes .
in )
Introduction
-
:
• It in
first ,
shortest ,
widest and most fixed past a small Intestine .
9T extends from pylorus to duodena
jejunal flexure
•
.
Named its
•
so
by Herophilus as
length = to combined width a 12
finger ,
o
g t in about 25 cm .
°
9T in C -
shaped and in located
abdominal level
in the
cavity above
of umbilicus opposite to 21 , 12,13 .
Parts e
Relations :
duodenum into 4
parts
25
long :
o
cm
(a) Superior = 5cm [ First Part ]
(b) Descending = F. 5cm [ second Part ]
(c) Horizontal = 10cm [ Third Part ]
( d,
Ascending = 2.5 cm
[ fourth Part ]
First Part :
-
°
It
develops from foregut .
It retro peritoneal
only partly
. in
It distensible
.
in
freely mobile d .
. It has no circular folds in mucous membrane
of its initial
2- 5 cm
. gt in site for duodenal ulcer
.
Supplied by branches g coeliac trunk / artery .
② Meditates
( med notes .
in )
, Relations :
•
ANTERIORLY : Quadrate of liver and gallbladder
lobe .
POSTERIORLY Postal Vein gastro duodenal
Artery and CBD
•
: ,
°
SUPERIORLY :
Epilploic foramen being separated from it by
portal viand bile duct .
°
INFERIORLY : Head &
Neck Pancreas
og
.
Second Point :
'
• Its
upper half develops from foregut and lower
half from midgut .
o gt lies behind transverse meso colon -
bile duct the ducts
accessory pancreatic
and
o
Gt receives ,
chief .
It the
. in
only part og intestine supplied by double rows 7 vasa
recta
arising from
,
anterior and
posterior pancreatic o duodenal A .
Relations :
ANTERIORLY Gallbladder and liver traverse colon
°
lobe of
right
:
, ,
meso colon and coils g small intestine .
POSTERIORLY :
Right kidney and
right renal vessels right edge
•
,
inferior and muscle
og vena Cava
Right psoas major .
°
MEDIALLY : Head 7 Pancreas .
colic flexure and sight
° LATERALLY :
Ascending colon ,
right .
lobe g liver .
, Third Pact :
Relation :
•
ANTERIORLY : Root g
mesentery , superior
mesenteric vessels ,
&
coils g
jejunum .
POSTERIORLY right ureter abdominal
Right IVC
°
:
psoas major , , ,
aorta ,
and
right gonadal xeesele .
SUPERIORLY Head with its uncinate
•
:
of pancreas process
.
INFERIORLY Coils
• :
og jejunum .
Fourth Past :
Relation :
°
ANTERIORLY : Transverse colon & transverse meeocolon .
•
POSTERIORLY left psoas major muscle left
: ,
sympathetic chain ,
left gonadal vends and inferior ,
mesenteric vein .
SUPERIORLY :
Body of pancreas
° .
°
ON TO LEFT :
left kidney I left center
ONTO RIGHT :
Upper part Root
•
g 9 .
, Interior of Duodenum :
°
The mucous membrane
of the duodenum presents circular
folds
called Valves
of Kero
Kring but
they begin in 2nd
part .
•
Second Part also have :
( as
Majord papilla :
r 8 -
to cm distal to pylorus
•
on its summit the
opens
common
hepa to pancreatic
duct .
do , minded papilla :
to duodenal papilla
2cm
proximal major
° .
•
Accessory duet its summit
opens on
-
cc , Arc circulars :
forms arch above
major duodenal
the hood
r
papilla like
an
.
( Monk 's hood )
② Meditates
( med notes .
in )
