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Anatomy 206 > Abdominal Cavity > Flashcards

Abdominal Cavity Flashcards

1
Q

Abdominal cavity

A
  1. Abdomen is trunk part below thorax
  2. Its shape and size vary with distension degree of abdominal organs, respiration phases, abdominal muscles tone, and body positions
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2
Q

Abdominal cavity divided into 2 parts:

A
  1. Abdomen proper cavity:
    Bounded:
    - superior by diaphragm
    - inferior by lesser pelvis inlet
  2. Lesser (true) pelvis cavity:
    - below lesser pelvis inlet
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3
Q

Abdominal planes

A
  1. Transpyloric plane
  2. Subcostal plane
  3. Intertubecular plane
  4. Right and left lateral planes
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4
Q

Transpyloric plane

A
  1. Horizontal plane:
    -midway between suprasteral notch and symphysis pubis
    or
    -midway between xiphisternal junction and umbilicus or hand’s breadth below xiphisternal junction
  2. Lies opposite 1st lumbar vertebra posterior and 9th costal cartilages tips anterior
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5
Q

Transpyloric plane passes through which structures

A
  1. Pylorus
  2. Duodenum beginning
  3. Gall bladder fundus
  4. Kidney hilum
  5. Upper border of pancreas neck and body
  6. Superior mesenteric artery origin
  7. Epiploic foramen
    Structures at 9th costal cartilages tip:
  8. Linear semilunaris upper end
  9. Spinal cord lower end
  10. L1 vertebra body
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6
Q

Subcostal plane

A

Horizontal plane passing at costal margin lower border anterior and 3rd lumbar vertebra posterior

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7
Q

Subcostal plane passes through which structures

A
  1. Duodenum 3rd part
  2. Inferior mesenteric artery origin
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8
Q

Intertubercular plane

A
  1. Horizontal plane extending between iliac crests tubercles (5cm behind ASIS)
  2. Lies opposite 5th lumbar vertebra upper border posterior
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9
Q

Intertubercular plane passes through which structures

A
  1. IVC beginning
  2. Junction between caecum and ascending colon
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10
Q

Right and left lateral planes

A

Each crosses midclavicular point and midinguinal point (midway between ASIS and symphysis pubis) on each side

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11
Q

Abdomen proper is divided for description into 9 regions by:

A

2 horizontal planes
1. Subcostal plane
2. Intertubercular plane
2 vertical planes
3. Right and left lateral vertical planes
4. Right hypochondrium
5. Left hypochondrium
6. Right lumbar
7. Left lumbar
8. Right iliac
9. Left iliac
10. Umbilical
11. Epigastrium
12. Hypogastrium (suprapubic)

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12
Q

Abdomen proper is divided into 4 quadrants by 2 planes:

A
  1. Horizontal transumbilical plane: at disc between L3 and L4 vertebra
  2. Vertical median plane:
    - right and left upper quadrants
    - right and left lower quadrants
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13
Q

Epigastric region content (10)

A
  1. Greater part (or all) of liver left lobe
  2. Gall bladder
  3. Part of stomach
  4. Duodeno-jejunal flexure
  5. Spleen upper end
  6. Part of liver right lobe
  7. Stomach orifices (cardiac and pyloric)
  8. Duodenum 1st and 2nd parts
  9. Pancreas
  10. Suprarenal glands and parts of kidneys
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14
Q

Right hypochondrium content

A
  1. Greater part of liver right lobe
  2. Part of right kidney
  3. Colon right (hepatic) flexure
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15
Q

Left hypochondrium

A
  1. Part of stomach
  2. Colon left (splenic) flexure
  3. Sometimes small part of liver left lobe
  4. Greater part of spleen and pancreas tail
  5. Part of left kidney
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16
Q

Left hypochondrium (5)

A
  1. Part of stomach
  2. Colon left (splenic) flexure
  3. Sometimes small part of liver left lobe
  4. Greater part of spleen and pancreas tail
  5. Part of left kidney
17
Q

Umbilical contents (4)

A
  1. Duodenum 3rd part, some coils of jejunum and ileum
  2. Greater part of transverse colon
  3. Parts of greater omentum and mesentery
  4. Part of both kidneys, sometimes only right kidney can reach umbilical region
18
Q

Right lumbar contents (3)

A
  1. Ascending colon
  2. Part of right kidney
  3. Sometimes part of ileum
19
Q

Left lumbar

A
  1. Descending colon
  2. Part of left kidney
  3. Sometimes part of jejunum
20
Q

Right iliac content

A
  1. Caecum
  2. Appendix
  3. Ileum end
21
Q

Left iliac content (3)

A
  1. Sigmoid colon
  2. Coils of jejunum
  3. Ileum

Anatomy 206 (98 decks)

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