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Sectional Anatomy > Abdomen-Part 1, 2, 3 > Flashcards

Abdomen-Part 1, 2, 3 Flashcards

1
Q

What are the anatomical landmarks that mark the upper and lower extent of the abdominal cavity?

A

Diaphragm and pelvic brim

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2
Q

What is the serous membrane that lines the abdominal walls and organs?

A

Peritoneum (visceral and parietal)

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3
Q

What are the retroperitoneal structures of the abdomen?

A

S=Suprarenal (adrenal) Glands
A = Aorta/IVC
D =Duodenum (except the duodenal cap aka sup. part)
P = Pancreas (except the tail)
U = Ureters
C = Colon (ascending and descending parts)
K = Kidneys
E = Esophagus
R = Rectum (prostate gland in males)

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4
Q

What is the liver bordered by medially?

A

Duodenum, stomach and transverse colon.

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5
Q

What is the liver bordered by posteriorly?

A

right kidney

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6
Q

What is the inner surface of the kidney bordered by?

A

hepatic flexure

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7
Q

What are the ligaments that come off the liver?

A

Falciform ligament
Round ligament (ligamentum teres)
Ligamentum venosum

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8
Q

What lobe of the liver is most anterior?

A

The left lobe of the liver

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9
Q

What is the largest lobe of the liver?

A

The right lobe

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10
Q

Where does the falciform ligament sit?

A

Falciform sits in the interlobar fissure between the R and L lobe of liver

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11
Q

What is the smallest lobe of the liver?

A

Caudate lobe

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12
Q

What structures surround the caudate lobe?

A

IVC & fissure for ligamentum venosum.

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13
Q

Where is the caudate lobe located?

A

Located on the inferior and posterior lower surface

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14
Q

Where is the quadrate lobe located?

A

Located on the inferior and anterior lower surface of the liver

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15
Q

What structures are located around the Quadrate lobe of the liver?

A

Gall bladder and the round ligament

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16
Q

T/F

If you see the quadrate on an axial slice, you will be able to see the gall bladder

A

True

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17
Q

Where is the caudate lobe located in relation to the IVC?

A

Medial and anterior to the IVC

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18
Q

Where is the gallbladder located in relation to the liver?

A

Anteroinferior surface of the right lobe.

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19
Q

T/F

The gallbladder is not situated close to the first portion of the duodenum, but on the other side of the abdomen.

A

False; gall bladder is situated close to the first portion of the duodenum

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20
Q

What are the 3 portions of the stomach?

A

Fundus, body, pylorus

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21
Q

What part of the stomach is most dialted?

A

Dilated at the fundus

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22
Q

What is the most narrow part of the stomach called?

A

Pylorus

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23
Q

In which direction does the stomach tilt?

A

Inferoanterior

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24
Q

What is the first portion of the stomach that we see in an axial slice?

A

Fundus

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25
Q

What are the sections of the pancreas?

A

Head, Neck, Body & Tail

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26
Q

At what vertebral level is the pancreas located at?

(don’t need to memorize, good for reference)

A

T12-L3

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27
Q

T/F

The head end of the pancreas is more superior than the tail

A

False; The tail end of the pancreas is more superior than the head

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28
Q

Where is the pancreas located in realtion to the stomach?

A

Posterior to the stomach

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29
Q

What structure does the tail of the pancreas sit against?

A

The spleen

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30
Q

Where does the head of the pancreas sit?

A

In the curvature of the duodenum

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31
Q

What is the uncinate process?

A

The part of the pancreatic head that extends medially towards the jejunum.

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32
Q

What vessel is located on the posterior surface of the pancreas?

A

Splenic vein

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33
Q

What vessel is located just posterior to the pancreatic neck?

A

The portal vein

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34
Q

What is the portal vein formed by?

A

Formed by the merging of the superior mesenteric and splenic vein.

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35
Q

Where is the spleen located in relation to the stomach?

A

Just lateral to the stomach

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36
Q

T/F

In a normal spleen, the splenic artery appears homogenous

A

True

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37
Q

What structures surround the right adrenal gland?

A

-IVC right crus, and right kidney surrounds the right adrenal gland

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38
Q

What structures surround the left adrenal gland?

A

-L crus, L kidney and pancreas surround the Left adrenal gland

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39
Q

T/F

The kidney sits in the layer of peritoneal fat

A

True

40
Q

T/F

Without contrast you wouldn’t see the sections of the kidney

A

True

41
Q

What vertebral level do the kidneys sit at?

(Don’t need to memorize, good for reference)

A

Kidneys sit from T12-L3/L4

42
Q

Which kidney sits more inferior in the body? Why?

A

The right kidney because of the liver

43
Q

What structure does the right kidney sit against?

A

The liver

44
Q

Where do the ureters travel in relation to the kidneys?

A

Inferior and medially to the kidneys

45
Q

Which is more anterior, the ureters, or the PSOAS muscle?

A

The ureters

46
Q

T/F

We can see PSOAS muscle even if we cannot see the kidneys

A

False; We cannot see the PSOAS muscle until we see the kidneys

47
Q

What structures is the duodenum located between?

A

Duodenum located btwn gallbladder and pancreas

48
Q

T/F

The pancreas should have uniform density

A

True

49
Q

T/F

When we see the jejunum and duodenum, we will see head and uncinate process of the pancreas

A

True

50
Q

Where does the duodenum travel in relation to the IVC?

A

Anterior to the IVC

51
Q

Where does the duodenum travel in relation to the superior mesenteric vein?

A

Posterior to the SMV

52
Q

T/F

The jejunum is located in the left abdominal area

A

True

53
Q

T/F

The Ileum is located in the left abdominal area

A

False; Located in the right abdominal area

54
Q

T/F

The large bowel is typically radiopaque

A

False; Typically has a lot of air and feces in it contributing to multiple densities

55
Q

T/F

Axial slice of the cecum, you will see the appendix

A

True

56
Q

T/F

The transverse colon is retroperitoneal

A

False; Intraperitoneal

57
Q

T/F

We may see small bowel loops in the pelvic cavity

A

True

58
Q

At what vertebral segment is the PSOAS muscle located at?

A

Lumbar segment

59
Q

What vein of the liver becomes visible if the tail of the pancreas is visible?

A

If you see the tail of the pancreas, you will see the portal vein

60
Q

T/F

Once you see the neck of the pancreas, that means that the SMV will become visible

A

True

61
Q

What are the 3 openings into the diaphragm, and what vertebral level are they located at?

A

Caval hiatus (T8-T9)
Esophageal hiatus (T10)
Aortic hiatus (T12)

62
Q

What runs through the Caval hiatus?

A

The IVC

63
Q

What is the most anterior and superior opening into the diaphragm?

A

The caval hiatus

64
Q

What wraps around the esophageal hiatus?

A

The crus

65
Q

What is the most posterior opening into the diaphragm?

A

Aortic hiatus

66
Q

Where does the abdominal aorta begin?

A

Begins at the aortic hiatus (of the diaphragm).

67
Q

What does the abdominal aorta bifricate into? At what level?

A

Right and left common iliac arteries (at approximately L4)

68
Q

What are the paired and unpaired branches that come off the abdominal aorta prior to the bifrication?

A

1 Paired:
-Renal arteries
3 Unpaired:
-Celiac trunk
-Superior mesenteric artery
-Inferior mesenteric artery

69
Q

What is the first branch that comes off the abdominal aorta

A

Celiac trunk

70
Q

Where does the celiac trunk originate?

A

The anterior aspect of the abdominal aorta

71
Q

What arteries does the celiac trunk give rise to?

A

splenic, L gastric, common hepatic artery

72
Q

T/F

The L gastric moves superior and towards the stomach form the celiac trunk

A

True

when you see the L gastric, the other arteries that come off the celiac trunk are not visible until you move inferior

73
Q

How do you distinguish btwn splenic vein and artery?

A

Artery is squiggly

74
Q

Where is the Superior Mesenteric Artery located in relation to the celiac trunk and the renal arteries?

A

1cm inferior to the Celiac trunk and 1 cm superior to the renal arteries

75
Q

What part of the aorta do the renal artery come off of?

A

The renal arteries will come off the lateral part of the aorta

76
Q

As the SMA takes off at the AA, anterior to it lies what?

A

The pancreas

77
Q

What makes up the SMV?

A

Portal vein + splenic vein

78
Q

Following take off from the AA, the SMA travels anteriorly and curves inferiorly over what?

A

Following take off from the AA, the SMA travels anteriorly and curves inferiorly over the left renal vein.

79
Q

Where do the renal arteries arise from?

A

The renal arteries arise from the lateral walls of the aorta just below the superior mesenteric artery

80
Q

T/F

The renal arteries travel obliquily to the corresponding kidney.

A

False; The renal arteries travel horizontally to the corresponding kidney.

81
Q

T/F

R renal artery is slightly longer than the left. Why or why not?

A

True: Because of the position of the aorta on the L side of the body

82
Q

As the right renal artery travels towards the right kidney, does it pass anteriorly or posteriorly to the IVC?

A

The right renal artery passes posterior to the IVC on its course to the right kidney!!

83
Q

Where is the Inferior Mesenteric Artery located in relation to the bifurcation of the aorta?

A

Located 3-4cm above the bifurcation of the aorta.

84
Q

What does the inferior mesenteric artery arise from? What directions does it travel prior to supplying blood to structures?

A

Emerges from the aorta, descends anteriorly and inferiorly and then courses to the left

85
Q

What is the smallest of the anterior branches of the aorta?

A

Inferior Mesenteric Artery

86
Q

What is the largest vein of the body?

A

IVC

87
Q

What is the IVC formed by and at what vertebral level?

A

Formed by the union of left and right common iliac veins at ~L5 vertebral level.

88
Q

Where is the IVC located in relation to the liver?

A

Passes posterior to the liver

89
Q

What muscle forms a large portion of the posterior abdominal wall?

A

Quadratus Lumborum

90
Q

What muscle is this describing?

Extends from the iliac crest to the inferior border of the 12th rib and transverse processes of all lumbar vertebrae.

A

Quadratus Lumborum

91
Q

T/F

PSOAS is much more lateral than the Quadratus Lumborum

A

False; PSOAS is much more medial than the Quadratus Lumborum

92
Q

What muscle forms the anterior abdominal wall? Is it paired or unpaired?

A

-The Rectus Abdominis
-Paired

93
Q

What muscle is this describing?

Originates from the pubic symphysis and inserts at the xiphoid process

A

Rectus Abdominis

94
Q

T/F

The transverse oblique muscles are deep to the internal oblique muscles

A

True

95
Q

From what 2 points does the External & Internal Obliques extend from and to?

A

Extends from lower ribs to the iliac crest.

96
Q

What muscle is this describing?

Group of muscles and tendons that run the length of the spine from the sacrum and hip up to the base of the skull. They lie on either side of the spinous processes of the vertebrae.

A

Erector Spinae

97
Q

What muscle is this describing?

Longitudinal fibrous band that forms a central anterior site of attachment for the muscle layers of the abdomen.

A

Linea Alba

Sectional Anatomy (17 decks)

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