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abdominal nerves and vessels Flashcards

1
Q

sympathetic innervation of the abdominal cavity is from

A

lumbar sympathetic trunk and ganglia

splanchnic nerves

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2
Q

parasympathetic fibers in the dorsal and ventral vagal trunks provide

A

visceral MOTOR innervation to the abdominal viscera

The vagus n. also carries visceral SENSORY fibers from abdominal viscera to brain

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3
Q

the sympathetic trunk courses from the thoracic cavity to the abdominal cavity through the

A

lumbocostal arch

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4
Q

preganglionic contributions to the lumbar sympathetic trunk arise from

A

L1-L5 regions of the spinal cord

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5
Q

splanchnic nerves are composed of

A

sympathetic (visceral motor) neurons coursing between the sympathetic trunk and ganglia in the abdomen and visceral sensory neurons coursing to the spinal nerve

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6
Q

most preganglionic axons in the sympathetic trunk ash the level of T10-T13 course to

A

the major splanchnic n.

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7
Q

major splanchnic n. courses from the thoracic cavity to the abdominal cavity through the

A

lumbocostal arch

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8
Q

major splanchnic n. courses to what ganglia

A

the adrenal and celiacomestenteric ganglia and plexus

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9
Q

lumbar splanchnic n.

A

arise from 2nd-5th lumbar sympathetic ganglia

course to the aorticorenal, cranial mesenteric, and caudal mesenteric ganglia and plexus

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10
Q

major splanchnic n. leaves the sympathetic trunk at what thoracic sympathetic ganglion

A

12th or 13th sympathetic ganglion

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11
Q

nerves that branch off of the lumbar sympathetic trunk for sympathetic innervation

A

major splanchnic n.

lumbar splanchnic n.

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12
Q

sympathetic ganglia contain

A

cell bodies of sympathetic and post ganglionic neurons

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13
Q

plexuses are

A

nerve networks made up of branches of vagus and splanchnic sympathetic nerves and visceral afferents

usually located around major abdominal arteries

supply innervation of abdominal viscera and muscular of arteries

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14
Q

hypogastric n.

A

post-ganglionic sympathetic fibers from the caudal mesenteric ganglion provides sympathetic innervation to the pelvic viscera

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15
Q

the cranial mesenteric a. supplies

A

the small and large intestine

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16
Q

parasympathetic innervation of the abdominal cavity is from

A

vagus nerve

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17
Q

nerve plexuses are made up of

A

parasympathetic fibers
sympathetic fibers
visceral sensory neurons

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18
Q

How does the sympathetic nerve impulse get from the major splanchnic nerve to the abdominal viscera?

A

leaves the thoracic sympathetic trunk at 12th or 13th thoracic sympathetic ganglia and goes into the abdominal cavity through the lumbocostal arch and synapses at the celiacomesenteric ganglia and plexus

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19
Q

How does the sympathetic nerve impulse travel from lumbar sympathetic nerves to abdominal viscera?

A

pre-ganglionic neuron travels through lumbar sympathetic nerve to the lumbar sympathetic trunk and then can travel down the trunk either cranially or caudally to synapse at the ganglia nearest to the target organ and then continue to the target organ along a post ganglionic fiber

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20
Q

where does the celiacomesenteric ganglia get its sympathetic pre-ganglionic fibers from?

A

mostly the major splanchnic n.

some from minor splanchnic n. and some from lumbar splanchnic n.’s

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21
Q

where does the celiacomesenteric ganglia and plexus get its parasympathetic fibers from?

A

dorsal vagal trunk
DOES NOT SYNAPSE HERE BECAUSE GANGLIA FOR PARASYMPATHETIC ARE ON THE TARGET ORGAN, so it just becomes part of the mix of the plexus and follows the arteries to the target organ

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22
Q

what route does the parasympathetic innervation take to reach abdominal viscera?

A

dorsal vagal trunk-> celiacomesenteric ganglia and plexus-> follow the artery towards target organ -> synapse at ganglia on target organ-> very short post ganglionic fiber to target organ

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23
Q

lumbar a. supplies

A

lumbar region of spinal cord, meninges, lumbar muscles and skin

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24
Q

Cranial mesenteric a. supplies

A

small and large intestine (except distal region of intestinal tract)

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25
phrenicoabdominal a. courses to what structure?
adrenal gland
26
phrenicoabdominal a. has what 2 branches?
caudal phrenic a. | cranial abdominal a.
27
caudal phrenic a. courses to
diaphragm and supplies caudal portion of diaphragm
28
cranial abdominal a. courses to
craniodorsal abdominal wall
29
renal a. is paired, which (left or right) branch arises cranially to the other?
right renal a.
30
ovarian a. supplies
ovary and gives rise to uterine branches to the uterus
31
testicular a. courses to
the vaginal ring and then to the testis and part of the spermatic cord
32
caudal mesenteric supplies
distal region of the digestive tract
33
caudal mesenteric divides into
left colic a. (supples descending colon) and cranial rectal a. (supplies rectum)
34
deep circumflex iliac a. supplies
caudodorsal region of the abdominal wall
35
external iliac a. supplies
pelvic limb
36
internal iliac a. supplies
pelvic cavity and pelvic limb
37
median sacral a.
continuation of the aorta, continues in the tail region as the median canal a.
38
major arteries that give blood supply to the stomach and intestines are
celiac a. cranial mesenteric a. caudal mesenteric a.
39
3 branches of celiac a.
hepatic a. left gastric a. splenic a.
40
branches of the hepatic a. are
hepatic brs. right gastric a. gastorduodenal a.
41
hepatic branches of the hepatic a. go to
the liver
42
right gastric a. of the hepatic a. supplies
the lesser curvature of the stomach and lesser omentum on the right side by pylorus
43
gastroduodenal a. branches into
right gastroepiploic a. | cranial pancreaticoduodenal a.
44
right gastroepiploic a. supplies
right side of the greater curvature of the stomach
45
cranial pancreaticoduodenal a. supplies
initial portion of the duodenum and right lope of the pancreas
46
left gastric a. supplies
lesser curvature of the stomach on the left side
47
what branches off of the left gastric a.
esophageal branches that go to the esophagus
48
what artery supplies the left lobe of the pancreas?
Pancreatic branches of the splenic a.
49
what artery supplies the right lobe of the pancreas?
pancreaticoduodenal a.
50
what are the branches of the splenic a.
pancreatic brs. splenic brs. short gastric aa. left gastroepiploic a.
51
splenic brs. of the splenic a. supply the
spleen
52
short gastric aa. supply the
fundus of the stomach
53
left gastroepiploic a. supplies the
left side of the greater curvature of the stomach and greater omentum
54
what are the branches of the cranial mesenteric a.
common colic a. (has more brs.) caudal pancreaticoduodenal a. (has more brs.) Jejunal a. ileal a.
55
what are the branches off the common colic a.?
Middle colic a. accessory colic a. right colic a. ileocolic a.
56
what are the branches of the ileocolic a.
colic branch cecal a anti mesenteric ileal br. mesenteric ileal br.
57
what does the caudal pancreaticoduondenal a. supply
the distal portion of the descending duodenum
58
what does the middle colic a. supply?
distal transverse colon, left colic flexure, and initial descending colon **may arise directly from cranial mesenteric a. rather than off of common colic trunk**
59
what does the right colic a. supply?
distal ascending colon, right colic flexure, and initial transverse colon
60
what does ileocolic a. supply?
colic branch supplies the initial ascending colon cecal branch supplies the cecum and as the anti mesenteric ileal br. which supplies the ileum mesenteric ileal br supplies the ileum
61
What are the 2 arteries that the caudal mesenteric a. branch into?
left colic a. | cranial rectal a.
62
left colic a. supplies the
distal portion of the descending colon
63
cranial rectal a. supplies the
initial rectum
64
terminal portion of the esophagus gets blood supply from what?
esophageal brs. of the left gastric a.
65
how does blood supply get to the greater curvature of the stomach?
left epiploic a. from the splenic a. of the celiac a. | right epiploic a. from the gastroduodenal a. of the hepatic a. of the celiac a.
66
blood supply to the duodenum
cranial portion: cranial pancreaticoduodenal a. from gastroduodenal a. from hepatic a. from celiac a. caudal portion: caudal pancreaticoduodenal a. from cranial mesenteric a.
67
blood supply to the jejunum
jejunum a. from the cranial mesenteric a.
68
blood supply to the ileum
ileal aa. from the cranial mesenteric a. anti mesenteric ileal a. from the cecal a. from the ileocolic a. from the common colic a. from the cranial mesenteric a. mesenteric a. from the ileocolic a. from common colic a. from cranial mesenteric a.
69
blood supply to the colon
initial ascending colon: colic br of ileocolic a. of the cranial mesenteric a. distal ascending colon, right colic flexure, initial transverse colon: right colic a. of the common colic a of the cranial mesenteric a. distal transverse colon, left colic flexure, initial descending colon: middle colic a. of the common colic a. of the cranial mesenteric a. distal descending colon: left colic a. of the caudal mesenteric a. initial rectum: cranial rectal a. of the caudal mesenteric a.
70
blood supply to the liver
hepatic brs. of the hepatic a. of the celiac a.
71
blood supply to the gal bladder
cystic br. from the hepatic branches of the hepatic a. from the celiac a.
72
blood supply to the spleen
splenic brs. of the splenic a. of the celiac a.
73
blood supply to the pancreas
right lobe: pancreatic brs of cranial pancreaticoduodenal a. from the gastroduodenal a. from the hepatic a. from the celiac a. AND pancreatic brs. of caudal pancreaticoduodenal a. of the caudal mesenteric a. left lobe: pancreatic brs. from the splenic a. of the celiac a.
74
what veins drain into the caudal vena cava in the abdomen?
``` lumbar v. hepatic v. phrenicoabdominal v. right testicular/ovarian v. deep circumflex iliac v. ```
75
what 2 veins join to form the portal v.
cranial and caudal mesenteric veins
76
where does cranial mesenteric v. drain blood from?
caudal duodenum, jejunum, ileum, and pancreas
77
where does caudal mesenteric v. drain blood from?
cecum and colon
78
gastroduodenal and splenic vv. drain into the
portal v.
79
gastroduodenal v. drains blood from where?
duodenum, pancreas, stomach, greater omentum
80
splenic vein drains blood from where?
spleen, stomach, pancreas, greater omentum
81
lumbar lymphocenter includes what lymph nodes?
lumbar aortic lnn. | renal lnn.
82
the celiac lymphocenter includes what lymph nodes?
gastric lnn. hepatic lnn. splenic lnn. pancreaticoduodenal lnn.
83
the cranial mesenteric lymphocenter includes what lymph nodes?
jejunal lnn. | colic lnn.
84
caudal mesenteric lymphocenter includes what lymph nodes?
caudal mesenteric lnn.
85
lumbar aortic lnn.
drains a lot of more cranial structures | efferent vessels drain into lumbar trunks which drain into the cisterns chyli
86
renal lnn.
associated with renal vessels afferent lymph vessels from kidneys efferent lymph vessels drain into lumbar aortic nodes or lumbar lymphatic vessels
87
hepatic lnn.
located on each side of the portal vein near hills of liver afferent vessels drain stomach, duodenum, pancreas and liver efferent vessels go to visceral trunks which drain into cisterna chyli
88
splenic lnn.
located along terminal brs. of splenic a. afferent vessels drain esophagus, liver, stomach, pancreas, spleen, omentum, diaphragm efferent vessels drain into cisterns chyli
89
gastric lnn.
located in lesser omentum near lesser curvature of stomach afferent drain esophagus, stomach, liver, diaphragm, mesentery, peritoneum efferent drain into left hepatic or splenic lnn.
90
pancreaticoduodenal lnn.
located initial portion of duodenum afferents drain duodenum, pancreas, omentum efferent drain into hepaic or right colic lnn.
91
jejunal lnn.
largest lymph nodes of the abdomen located along cranial mesenteric a. afferents drain jejunum, ileum, pancreas efferent drains into cisterna chyli
92
colic lnn. (right, middle and left)
located mesocolon close to colon afferent drain ileum, cecum, colon efferent drain into visceral trunks or medial iliac or lumbar ln.
93
caudal mesenteric lnn.
located along caudal mesenteric a. drains descending colon drains into medial iliac lnn. or into cisterna chyli via visceral trunks
94
cisterna chyli
enlarged lymph duct formed by the joining of lumbar and visceral lymphatic trunks located on the right and dorsal aspects of aorta in L1-L3 region carries lymph to thoracic duct

Gross Anatomy (13 decks)

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