Final Exam: Abdominal Cavity Flashcards

1
Q

What two plans divide up the abdomen into four quadrats?

A

midsaggital plane and transumbilical plane

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2
Q

If a patient claims of pain in his lower left quadrant, what viscera do you need to consider?

A

sigmoid colon, inferior descending colon, left ovary and fallopian tube, left ureter, left spermatic cord

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3
Q

What parts make up the large intestine, in order?

A
  • the ilium of the SI dumps into the LI, which begins with the cecum
  • cecum -> ascending colon -> transverse colon -> descending colon -> sigmoid colon -> rectum
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4
Q

Describe the flow of the small intestine.

A

1) duodenum comes off pylorus of the stomach; smallest and first part of the SI
2) jejunum
3) ilium

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5
Q

Where would you find pain if a patient has a ruptured appendix?

A

right lower quadrant

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6
Q

What contents make up the right upper quadrant?

A

right lobe of liver, gallbladder, superior ascending colon, pylorus of stomach, some duodenum, head of pancreas, right kidney, right transverse colon, right adrenal gland

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7
Q

Which abdominal quadrant is the spleen in?

A

left upper quadrant

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8
Q

Describe the fascia above and below the umbilicus. What layer continues as colles fascia, and where does this go?

A
  • above: camper fascia (superficial fatty layer)
  • below: camper fascia and scarpa fascia
    • (scarpa = deep membranous layer that continues as colles fascia in perineal region)
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9
Q

What is the superior bony marking of the abdominal wall?

A

xiphoid process and costal margin

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10
Q

The linea alba is a fusion of what? What is the linea semilunaris?

A
  • fusion between the right and left halves of the rectus sheath
  • linea semilunaris = lateral border of rectus sheath
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11
Q

T/F: Rectus abdominus is a major core stabilizer.

A
  • false; doesn’t originate on thoracolumbar fascia so it’s not a core stabilizer
  • external oblique doesn’t core stabilize either
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12
Q

What actions does the internal abdominal oblique do?

A
  • ipsilateral side bend
  • ipsilateral trunk rotation
  • bilateral trunk flexion
  • eccentric extension
    • external oblique does same, just contralateral rotation
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13
Q

What muscle tenses the linea alba?

A

pyramidalis

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14
Q

What way do the external oblique muscle fibers run?

A

same as external intercostals, inward like your hands in your pockets

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15
Q

How do external and internal obliques rotate the trunk?

A

external contralateral rotation, internal ipsilateral rotation

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16
Q

What muscles do the iliohypogastric and ilioinguinal nerves (L1 branches) help innervate?

A

internal obliques and transverse abdominus

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17
Q

Which oblique is a very important core stabilizer?

A

transverse abdominus

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18
Q

What is diastasis recti? What can cause it? How do we treat it?

A
  • condition where the linea alba is stretched and abdominal wall is separated (rectus abdominus sides further apart, 2-3 finger breadths)
  • poor ab strength or pregnancy can cause this
  • treat with core stabilization
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19
Q

What is the conjoint tendon?

A

lower part of transverse abdominus, joints with the internal oblique

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20
Q

The inguinal ligament is a continuation of what? What is the lacunar ligament?

A
  • continuation from aponeurosis of external oblique and attaches to pubic tubercle
  • lacunar lig = medial, thicker part of inguinal ligament
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21
Q

What muscle should be one of the first core contractors for movements such as vacuuming, reaching, etc? What muscle co-contracts with it?

A

transverse abdominus and multifidus

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22
Q

The delayed onset of contraction for the transverse abdominus indicates what?

A

motor control deficit and inefficient muscle stabilization for spine

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23
Q

What is the arcuate line, and why is it significant? What’s found above and below it?

A
  • arcute line is the inferior marker of the rectus sheath; it’s the horizontal division between the umbilicus and pubic symphysis
  • above line = rectus sheath
  • below = no rectus sheath, just transversalis fascia
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24
Q

What is the rectus sheath? How is it formed?

A
  • fibrous compartment of the rectus abdominal muscle

- formed from the lateral abdominal muscles coming in and enclosing the rectus abdominus

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25
Q

T/F: Between the ASIS and pubis, there are still oblique muscles there forming the posterior wall.

A

false, all muscles form anterior wall between the ASIS and pubis area

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26
Q

What muscle splits to enclose the rectus abdominus?

A

internal oblique

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27
Q

What muscles form the anterior and posterior walls ABOVE the arcuate line? What about below the line?

A

ABOVE line:

  • anterior = external oblique, half of internal oblique
  • posterior = half of internal oblique, transverse abdominus

BELOW line:

  • anterior = all muscles
  • posterior = transversalis fascia
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28
Q

What nerve supplies the skin to the upper inguinal region?

A

iliohypogastric

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29
Q

What nerve supplies the skin over lower inguinal region to thigh?

A

ilioinguinal

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30
Q

What makes the border of the lumbar triangles? Why are these potential sites for herniation?

A
  • borders = latissimus dorsi, iliac crest, external oblique

- not much muscle in the triangle, so viscera can get pushed through

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31
Q

What abdominal muscles attach onto the thoracolumbar fascia?

A

transverse abdominus and internal obliques (lats and multifidus do as well)

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32
Q

What is the nerve supply for the abdominal region?

A

thoracoabdominal nervers, ilioinguinal, and iliohypogastric

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33
Q

T/F: External oblique attaches on the thoracolumbar fascia.

A

false

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34
Q

What’s the strongest layer of the thoracolumbar fascia and where is it found? What does it insert on?

A
  • posterior layer is strongest, found superficial to erector spinae
  • surrounds erector spinae and multifidus
  • inserts on SI ligaments, sacral crest, and sacrotuberous ligament
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35
Q

Discuss the three layers of the thoracolumbar fascia.

A

1) anterior layer: in front of quadratus lumborum
2) middle layer: between quadratus lumborum and erector spinae
3) posterior layer: behind erector spinae

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36
Q

How is the iliolumbar ligament formed?

A

via thickening of the anterior layer of the thoracolumbar fasica

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37
Q

During fetal development, what are the walls of the inguinal canal made up of?

A

abdominal muscles

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38
Q

What causes the testes to drop and when?

A

In the 5th week of development, there’s a surge of hormones that cause the testes to drop from posterior abdominal wall because it’s too warm

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39
Q

What tugs on the testes to pull them down?

A

gubernaculum pulls them through inguinal canal

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40
Q

The testes are originally fixed on the posterior abdominal wall by what ligament?

A

suspensatory (diaphragmatic) ligament

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41
Q

What is the opening to the inguinal canal called? What’s the entryway?

A

deep ring is the opening to the inguinal canal, and through the transversalis fascia is the entryway

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42
Q

What is the spermatic cord?

A

the cord of nerves, lymphs, vessels, and muscles brought down with the descention of the testes

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43
Q

What is the exit point of the inguinal canal, and what is the exitway?

A

exit point is superficial ring via the aponeurosis of external oblique muscle

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44
Q

T/F: Layers of the abdominal wall are brought down as the testes descend.

A

true

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45
Q

Explain the path the testes take when they descend.

A
  • tugged by gubernaculum through the deep ring (via transversalis fascia) and then through the superficial ring (via aponeurosis of ext. oblique) and into the scrotum
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46
Q

What’s the path of the round ligament for females?

A

ligaments begins at uterus, pierces through deep ring, exits via superficial ring and inserts on the labia majora

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47
Q

What are potential sites for hernias discussed in this chapter?

A
  • diastisis recti
  • lumbar triangles
  • deep and superficial inguinal rings
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48
Q

Where is the deep ring located?

A

halfway between ASIS and pubic symphysis

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49
Q

T/F: The deep ring lies medial to the inferior epigastric artery.

A
  • false, lies lateral

- the SUPERFICIAL ring lies medial to the inf. epigastric a.

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50
Q

Where is the superficial ring located?

A

slightly above and lateral to pubic tubercle

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51
Q

What is the lacunar ligament?

A

thickening of the external oblique aponeurosis; attaches to pubic tubercle

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52
Q

What does the cremastor muscle do? What’s it innervated by?

A
  • draws testes up to protect them from cold

- supply = genital branch of genital femoral a.

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53
Q

What is cut in a vasectomy?

A

vas deferens; they carry sperm from testes to seminal vessicles

54
Q

T/F: The vas deferens is not a part of the spermatic cord.

A

false, it is

55
Q

T/F: Direct/ indirect hernias can be classified as either inguinal or femoral hernias.

A

false, direct and indirect hernias are strictly INGUINAL hernias

56
Q

Ovarian and gonadal arteries are direct branches of what?

A

abdominal aorta

57
Q

Describe how the testicular/ovarian veins drain.

A
  • L. testicular vein drains into L. renal vein
  • R. testicular vein drains into IVC
    (same goes for ovarian veins)
58
Q

Where are femoral and inguinal hernias located? Which gender has which kind of hernia?

A
femoral = below and lateral to pubic tubercle (female)
inguinal = above and medial to pubic tubercle (male)
59
Q

What are the qualifications for a direct and indirect inguinal hernia?

A

DIRECT

  • dives straight into inguinal canal, only goes through superficial ring
  • medial to the inf. epigastric a.

INDIRECT

  • must pass through deep ring
  • lateral to the inf. epigastric a.
60
Q

What are the common causes for the direct and indirect hernias?

A

1) direct = superficial ring; weak ab wall, mostly in older men
2) indirect = deep ring; congenital weakness in inguinal canal

61
Q

Name the contents of the spermatic cord.

A
  • testicular v.
  • vas deferens & its arteries
  • genital branch of genital femoral a.
62
Q

Which hernia protrudes through Hasselbach’s triangle?

A

(inguinal triangle) so, direct inguinal hernia does

63
Q

What are the boundaries of Hasselbach’s, or inguinal, triangle?

A

1) lateral border of rectus abdominus
2) inferior epigastric vessels
3) inguinal ligament

64
Q

Where is the direct hernia in regards to the inferior epigastric a.?

A

direct = medial to inf. epigastric a.

65
Q

Where will you find an epigastric hernia? Why are they caused?

A

between xiphoid process and umbilicus; common from obesity

66
Q

Abdominal viscera still piercing through in an infant is an example of what kind of hernia?

A

umbilical hernia

67
Q

What are the three divisions of the gut?

A

foregut, midgut, hindgut

68
Q

What are the contents of the foregut?

A

“Some Prefer Good Liquor Some Like Dirty martinis”

Stomach
Pancreas
Gallbladder
Liver
Spleen
Lower end of esophagus
Duodenum (1st part)
69
Q

What are the innervations of the gut?

A
  • fore and mid = vagus
  • hind = pelvic splanchnic
  • sympathetic fibers throughout, off lateral horns
70
Q

What is the blood supply for the gut?

A
fore = celiac artery
mid = superior mesenteric a.
hind = inferior mesenteric a.
71
Q

In which gut division would you find most of the small intestine?

A

midgut

72
Q

In which gut division would you find the spleen?

A

foregut

73
Q

What enlarges through the physiologic herniation during embryological development?

A
  • liver englarges and the midgut herniates through the umbilicus, but then the liver reduces in size and it unherniates
  • if that doesn’t happen, the baby is born with its organs still outside
74
Q

How do the curvatures of the stomach form?

A

From the midgut rotating around the superior mesenteric a., taking the stomach with it and creating curvatures

75
Q

What portion of the duodenum unites with the jejunum?

A

ascending

76
Q

In what 3 areas can hernias develop on wall?

A

umbilical, epigastric, inguinal

77
Q

How can the transverse abdominus be a cause of low back pain?

A

if it’s not contracting prior to movement, it’s not protecting and stabilizing spine, so poor performance of this muscle can cause low back pain

78
Q

Pelvic splanchnic innervates what part of the gut?

A

hindgut (vagus does the fore and mid)

79
Q

T/F: Spleen is posterior to stomach and lateral to kidney.

A

true

80
Q

Where are the adrenal glands and what do they do?

A

sit atop the kidney and secrete norepi and epi and cortisol

81
Q

Where is bile stored? What’s its path into the small intestine?

A
  • stored in liver
  • goes from liver to gallbladder via hepatic duct
  • released via bile duct into the duodenum
82
Q

If the patient experiences pain when the iliopsoas muscle contracts, what organs lie near this muscle to raise concern?

A

appendix

83
Q

Where do the kidneys lie? Why is this important?

A

posterior abdominal wall from T12-L3; could be reason for back pain and be tender to palpate

84
Q

Where is the esophageal opening?

A

T10

85
Q

When the stomach slips through the diaphragm, what is this called?

A

hiatal hernia

86
Q

What does the hindgut contain?

A

“Descending RATS”

Descending colon
Rectum
Anus
Transverse colon (distal 1/3)
Sigmoid colon
87
Q

What innervates the hindgut?

A

pelvic splanchnic and sympathetic fibers from lateral horns

88
Q

What is the blood supply to the stomach?

A

celiac trunk

89
Q

What is a common cause of peptic ulcers?

A

h pyloric bacterium, so need to take antibiotic

90
Q

What does rebound tenderness indicate?

A
  • something wrong in the parietal layer

pain when rebounding touch from abdomen

91
Q

T/F: Mesentary/omentum is attached to the stomach and can wall off infection.

A

true; greater at greater curviture, lesser at lesser curviture

92
Q

In what part of the intestine does most absorption take place?

A

jejunum

93
Q

How long does it take food to pass through the SI?

A

4-5 hours

94
Q

What levels of the spine does the duodenum span?

A

L1-3

95
Q

What portion of the duodenum communicates with the stomach?

A

superior portion (1)

96
Q

Which part of the duodenum has little holes for ducts of pancreas and bile duct?

A

descending portion (2)

97
Q

What branches off the celiac a.?

A

splenic a., hepatic a., left gastric a.

98
Q

In what quadrant does the ilium enter into the secum?

A

lower right quadrant

99
Q

What intestine has longitudinal bands and haustra?

A

long intestine

100
Q

Where is most water absorbed in digestion?

A

LI

101
Q

How long does it take for stool to pass through and water to be absorbed?

A

32 hours

102
Q

What is diverticulosis?

A

inflammed pouches/lining in the LI

103
Q

What does the spleen do? At what vertebral level is it found?

A
  • cleans up blood, but we can live without it

- at ribs 9-11

104
Q

Explain where the spleen is in relation to the diaphragm and kidney and stomach.

A
  • stomach lies on top of spleen
  • spleen is lateral to kidney
  • diaphragm is behind spleen
  • tail of pancreas is at medial hylum of spleen (pancreas is behind stomach)
105
Q

T/F: Pancreas is only an exocrine gland.

A

false, endocrine and exocrine

106
Q

What does the pancreas release?

A

insulin and glucagon to control blood glucose

107
Q

What is the uncinate process of the pancreas?

A

beginning of pancreas, followed by head, neck, body, and tail

108
Q

What does the coronary ligament of the diaphragm do?

A

attaches the diaphragm to the liver

109
Q

What is the largest gland in the body?

A

liver

110
Q

Where does the liver get its blood supply?

A

portal vein and hepatic artery

111
Q

Where are vitamin A and glycogen stored?

A

in the liver

112
Q

What makes up the portal triad?

A

bile duct, hepatic artery, portal vein

113
Q

What is the left sagittal fissure of the liver formed by?

A

the ligamentum venosum (used to be ductus venosus)

114
Q

T/F: The portal triad can be found in the left sagittal fissure.

A

false, found in the transverse fissure

115
Q

Discuss the path of bile.

A

made and stored in liver until needed to emulsify fats in digestion, then travels to gallbladder via hepatic duct and then released to duodenum via cystic duct

116
Q

Where’s the opening for the IVC in the diaphragm? Where’s the aortic hiatus?

A

IVC = T8

aortic hiatus = T12

117
Q

What are the actions of quadratus lumborum?

A

bilateral extension, ipsilateral flexion, fixes 12th rib

118
Q

What can cause gallstones?

A

Bile can become a stone wedged in the duct and gallbladder gets inflammed

119
Q

What three areas can constrict the ureter?

A

1) renal pelvis
2) brim
3) bladder

120
Q

T/F: Ureters can cause referred pain from loin to groin.

A

true

121
Q

What nerve roots make up the lumbar plexus? What nerves?

A
L1-5
• iliohypogastric/ ilioinguinal = L1
• genitofemoral  = L1-2
• lateral cutaneous nerve to thigh = L2-3
• femoral and obturator = L2-4
122
Q

T/F: Lateral cutaneous nerve to thigh runs over the inguinal ligament.

A

false, passes deep to it

123
Q

What structure overlies the renal vein?

A

SMA

124
Q

How does an anneurism occur? Where do they typically develop?

A
  • aterial walls weaken and blood wells up, can cause artery to rupture and for the patient to bleed out
  • typically develop below renal artery, right above bifurcation
125
Q

What is the blood supply for the adrenal gland?

A

renal a.

126
Q

T/F: Suprarenal, renal, and gonadal arteries are all directly off the abdominal aorta.

A

true

127
Q

What veins create the portal vein?

A

superior mesenteric and splenic veins

128
Q

Explain drainage of excess water/salts in the kidney.

A

drains into pyramids -> callyces -> major callyces -> renal pelvis

129
Q

What is meralgia parasthetica?

A

extra fat impinging the lateral cutaneous nerve to thigh in obese people

130
Q

What causes caput medusae?

A

anastemosis between the portal vein and the umbilical region; liver engorges and blood backs up into the umbilical region

131
Q

What 4 areas anastemose or communicate with the portal vein system?

A

1) rectum (causing hemrrhoids)
2) lower esophagus
3) periumbilical region
4) abdominal viscera (duodenum/pancreas)