intestines Flashcards
1
Q
what part of duadenum is intraperitoneal
A
superior
2
Q
ligament of treitz
A
connects celiac trunk to duodenum and separates duo from jej
3
Q
what do doctors use as a land mark to distinguish duodenum from jujenum
A
ligament of treitz
4
Q
four parts of duodenum
A
superior, descending, inferior, ascendling
5
Q
how long is duodenum
A
10in
6
Q
superior part of duodenum
A
2 in, runing upwards and backwards on right side of L1
7
Q
descending part of duo
A
3 in, runs vertically dowanward along right side of L1-l3
8
Q
inferior part of d
A
3in run horrizontally in front of L3
9
Q
ascending part of d
A
2in run upwards and to L and ends at duodenojejunal flexure
10
Q
minor duodenal papilla made by
A
accessory pancreatic duct
11
Q
mucosa of duodenum called
A
plica circularis or circular folds
12
Q
what do the circular folds do
A
increase absorption area of duodenum
13
Q
major duodenal papilla is made by
A
common bile duct and main pancreatic duct
14
Q
blood supply of duo
A
superior and inferior pancreatico-duodenal arteries
15
Q
superior pancreatico-duodenal artery is a branch of
A
gastroduodenal a.
16
Q
inferior pancreatico-duodenal a branch of
A
superior mesenteric a
17
Q
lymph drainage of duo
A
pancreatoduodenal nodes, then celiac nodes and superior mesenteric nodes
18
Q
the sup and inf pancreatico duo a ( )
A
anastome
19
Q
jejun and ileum are how long
A
20 ft long
20
Q
mesentary acts as a
A
conduit for vans
21
Q
jej and ile are ____peritoneal
A
intra so freely mobile, attached by mesentery
22
Q
what accompanies teh sup and inf pancreatico duo
A
superior mesenteric plexus branches called post sup and post inf pancr duo plexus
23
Q
differences between jej and ile
A
- j is coiled in upper part of peritoneal cav il in lower part of cav
- je wider lumen thicker wall redder than ileum (cause more absorption and vascular there)
- je is taller and more circular folds (cause more absorption), ileum has shorter and fewer circular fold
- je mesentery is attached to posterior wall above adn to the left of aorta, ileu mesentery is attached below and to the right of aorta
- je vessels form few arcades with few long branches, il vessels form numerous arcades with short numerous terminal branches (vas erecti)
- jeju mesentery has fat deposited in the root area and thins out towards the intestines, ile even fat distribution throughout the mesentery
- jej has larger and fewer archades and vas erectir are longer
24
Q
peyer’s patches are present in /concentrated in
A
mucous membrane of lower ileum along anti-mesenteric border
25
peyers patch is
connection of lymphode nodules
26
peyers patch are in how much of hte intestine
the whole, but aggregate in il and scattered in je
27
celiac ganglion surround
base of celiac trunk
28
middle colic is a branch of
sup mesenteric
29
middle colic gives blood to
transverse colon
30
first branch of sup mes a on right side
inferior pancreaticduodenal
31
right colic and iliocolic a supplies
ascending colon
32
jejenum found in
left upper part
33
ilium found in
lower right side
34
specifically find peyers patch on intestine
opposite the mesenteric connection
35
intestinal branches are found on
left of sup mese
36
intestinal branchse anastome with
self forming intestinal archandes
37
vas erecti
arteries that go to the intestines
38
vas erecti arise from
archades
39
ilial branches found on what side
on right
40
blood supply of small intestine
superior mesenteric
41
venous drainage of small i
portal system
42
what drains the je and il
superior mesenteric v
43
superior mesenteric vein drains into
portal vein
44
lymp drainage of s.i
mesenteric nodes (in mesentery), then to superior mesenteric nodes, to intestinal lymph trunk, to cisterna chyli
45
nerve supply of s.i
celiac plexus, superior mesenteric plexus
46
the celiac plexus specifically supplies
primarily duodenum
47
superior mesenteric plexus primarily supply the
jej and il
48
the sup mesent plexus follows the
sup mes a.
49
the pre symp fibers of s.i is from
lesser splanchnic
50
what fibers are apart of sup mes plex
gva pre para post symp
51
the post symp fibers of s.i from
superior mesenteric ganglion
52
t5-9
greater splan
53
t10-11
lesser splan
54
t12
least splanc
55
superior mesenteric ganglion surround
base of superior mesenteric a.
56
large intestine extends from, and how long
ileum to anus , 5ft
57
what is the large intestine divided into
cecum, appendix, ascending colon, transverse colon, descending colon, sigmoid colon, rectum, anal canal
58
what are the big 3 characteristics of large in
tenia colia, haustrations, epiploical appendages
59
tenia colia
longitudinal muscles grouped into 3
60
haustrations are
segments of large i (hastrau plrl)
61
epiploical appendages
fat deposits/potrusions surrounded by visceral peritoneum
62
sigmoid looks like a
s
63
appendix is a
narrow muscular tube, 3-5 in long, contains lots of lymphoid tissue
64
where does appendix lie
right iliac fossa, mcburneys point
65
blood supply of appendix
appendicular artery, branch of posterior cecal a
66
lymph drainage of appendix
mesenteric nodes to superior mesenteric nodes
67
nerve supply of the appendix
superior mesenteric plexus, afferent fibers for pain enter t10 segment
68
signs of appendicitis
1. beginning sign of appendicitis: refered pain from t10 to umbilical area
2. as enlarges, touches parietal peritoneum so localize to right lower quadrant, PERITINITIS
3. point tenderness at mcburneys pt
4. rebound tenderness (press in pain disapears, release hurt)
5. ROVSING'S SIGN- press left side of abd, no pain relase and get pain on right side (peritoneal irritation)
6. iliopsoas sign: lay down and lift up R leg with resistence and cause pain or extend R leg
69
ascending colon extends from what and how long
extends upward from cecum to inferior surface of right lobe of liver, 5in
70
what does ascendinc colon end with
right colic flexure
71
ascending colon is ()peritoneal
retro
72
blood supply of ascending
ileocolic and right colic a
73
nerve supply of ascending colon
superior mesenteric plexus
74
ileocolic and right colic a are branches of
superior mesenteric a
75
right colic flexure aka
hepatic flexure
76
transverse colon extend and length
extend from across abdomen occupying ulbilical region, 15 in, from r colic flexure to l colic flexure
77
the transverse colon is supsended by
transverse mesocolon from anterior surface of pancreas
78
blood suppy of transverse colon
middle colic and left colic aa
79
nerve supply of tc
superior and inferior mesenteric plexus
80
middle colic is a branch of
superior mesenteric
81
left colic as is brnach of
inferior mesentery
82
the right 2/3 of tc is derivative of what embryologic
midgut
83
lat 1/3 of tc is derived from
hind gut
84
right 2/3 tc blood supply
middle colic
85
lat 1/3 tc blood supply
left colic as
86
descending colon how long and extends from
10 in, extend left colic flexure to pelvic brim
87
pelvic brim aka
superior pelvic aperature, pelvic inlet
88
descending col is ()peritoneal
retroperitoneal
89
blood supply of descendign colon
left colic and sigmoidal a
90
nerve supply descendi col
inferior mesenteric plexus
91
inferior mesenteric plexus derived from
inferior mesenteric ganglion
92
sigmoidal arteries branches of
inferior mesenteric a
93
sigmoid colon length and extends
10-15in, extend pelvic brin to front of S3
94
sigmoid colon attached to post wall by
sigmoid mesocolon
95
blood supply of sigmoid colon
sigmoid branches of the inferior mesenteric a.
96
lymph drainage of sig col
inferior mesenteric nodes
97
nerve supply of sig col
inferior mesenteric and hypogasatric plexus
98
hypogastric plexus supplys
lower part in pelvic cavity
99
inferior mesenteric plexus supplys
upper part of sigmoid
100
rectum how long and begins and end
5in, begins in front of S3 and ends 1in in front of tip of coccyc
101
rectum is ()peritoneal
retro
102
outerlongitudinal muscle surrounds () of rectum
entire circumfrence
103
blood supply of rectum
superior, middle, and inferior rectal arteries
104
lymph drainage superior half of rectum
pararectal lymph
105
lymph drainage inferior half of rectum
internal iliac lymph nodes
106
nerve supply of rectum
hypogastric plexuses
107
rectosigmoid junction
bend at rectum
108
why rectum normally empty
cuase of rectosigmoid junction
109
when does rectum get filled
when theres a peristaltic rush
110
anal canal how long and passes what
1.5 in, downward and backward from rectal ampulla to the anus
111
involuntary internal sphincter made from
smooth muscle
112
external sphincter is
voluntary
113
blood supply of anal canal
superior and inferior rectal arteries
114
upper half of anal canal lymph drainage
internal iliac nodes
115
lower half of anal canal lymph drainage
superficial inguinal nodes
116
nerve supply upper portion of anal canal
hypogastric plexus
117
nerve supply lower portion of anal canal
inferior rectal nerve and perineal branch of s4 nerve
118
slight dilation at bottom of anal canal
rectal ampulla
119
anorectal angle
bend/angle from puborectalis muscle, 80 degrees downwards and backwards
120
the involuntary internal anal sphincter is a thickening of
smooth circular muscle
121
what sphincter automatically relaxes when feces get into rectal ampulla
internal anal sphincter
122
nerve supply upper portion of anal canal
hypogastric plexus
123
nerve supply lower portion of anal canal
inferior rectal nerve and perineal branch of s4 nerve
124
slight dilation at bottom of anal canal
rectal ampulla
125
anorectal angle
bend/angle from puborectalis muscle, 80 degrees downwards and backwards
126
the involuntary internal anal sphincter is a thickening of
smooth circular muscle
127
what sphincter automatically relaxes when feces get into rectal ampulla
internal anal sphincter
128
anal columns
longitudinal ridge
129
anal columns aka
columns of morgagny
130
lower half of anal canal supplied by nerve
pudendal nerve (s2-4 keep ding dong off floor)
131
tissue type of lower anal canal
stratified squamous kertinized (like skin) with apocrin glands
132
anocutaneous line aka
mucocutaneous line
133
the ancocutaneous line is the
junction of the two diff kinds of tissue in the anal canal
134
the lower half of the anal canal is from the
ectoderm
135
the upper half of the anal mucosa is from
endoderm
136
the upper half of anal canal is what type of tisseu
simple columnar et
137
where do the longitudinal columns connect
anal valve
138
what prevents liquid material from getting out
anal valve
139
what makes the dentate line
the anal valve
140
the end of upper half/middle zone of the anal canal is
stratified squamous nonkertanized
141
branches of superior mesenteric artery
inf pancreaticoduo, middle colic, right colic, ileocolic, post cecal, ant cecal
142
branches of inferior mesenteric a
left colic, sigmoidal, superior rectal a
143
superior rectal a gives blood to
upper half rectum and upper portion of anal
144
branches of internal iliac a
middle rectal a, inferior rectal a
145
middle rectal a. and inferior rectal a supplies
inferior rectum
146
middle colic a supplies
right 2/3 of transverse
147
the 2 ascending branches of left colic supply
lat 1/3 of transverse colon
148
the ilieocolic branches supplies
cecum
