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30 Cards in this Set
- Front
- Back
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When does the liver mass start to protrude into the abdominal cavity?
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At about 6 weeks into the gestational period
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Which lobe is larger in size at first?
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The lobes are about the same size at first. Later, the right lobe grows larger.
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When does hemopoiesis begin?
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At about 6 weeks gestation.
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What is another name for the right umbilical vein?
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The ductus venosum
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What are the 2 divisions of the patent umbilical vein, and where do they go?
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1. The left umbilical vein goes into the portal vein.
2.The right umbilical vein, which is the ductus venosum, goes directly to the IVC. |
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Where does the patent umbilical vein originate?
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In the placenta
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What happens to both the left and right umbilical veins after birth?
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They deteriorate into fibrous cords
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What does the left umbilical vein become after birth?
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The ligamentum teres
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What does the right umbilical vein become after birth?
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The ligamentum venosum
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If a patient has portal vein hypertension, what can happens which helps alleviate this conditon?
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The ligamentum teres can recanalize to form a venous collateral pathway through the portal system
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What is the purpose of other ligaments which develop in the liver?
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They help keep the liver in place, so it doesn't shift all over the abdomen.
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The ventral surface of the mesentery, between the liver and the anterior body wall, becomes the _______.
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Falciform ligament
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What is the form and function of the falciform ligament?
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It is a cord that attaches the liver to the abdominal wall.
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What is the english equivalent of the Latin words "ligamentum teres?"
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Round ligament
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What does the ligamentum teres lie within?
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The falciform ligament
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Where does the liver sit?
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Below the costal cartilages in the right and left hypochondriac spaces, and extending past the midline, as far left as the mammary line. It occupies the greater portion of the epigastrium. Both the right and left lobes are primarily covered by ribs.
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How does the fundus of the stomach lay with respect to the liver?
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It is posterior and lateral
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Where do the body and pylorus of the stomach lay with respect to the liver?
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Inferiorly
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What sits adjacent to the inferior portion of the right lobe of the liver?
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The duodenum
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What comes in contact with the posterior border of the right lobe?
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The right kidney, accompanied by the aorta and IVC.
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What covers the superior portion of the liver?
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The diaphragm
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The subphrenic spaces are common sites for _______ and/or ________.
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1. Abscess formation
2. Fluid collection |
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In certain views, you can see a reflection of liver tissue on the diaphragm. What does this indicate?
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That there is no fluid collection in that subphrenic space. (If there were, the image would be anechoic (black) in that area).
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Elevation of the liver can occur in patients with what 4 conditions?
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1. Bowl obstruction
2. Distention of the colon 3. Abdominal tumors 4. Uterine enlargement in pregnancy |
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What are the 3 parts of the diaphragm?
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1. Sternal
2. Costal 3. Lumbar |
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Upon what is the classification of the 3 parts of the diaphragm based?
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The origins of the muscle fibers which form each part of the diaphragm
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What are the crura of the diaphragm?
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Tendinous structures that extend inferiorly from the diaphragm to attach to the vertebral column.
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What is the singular of crura?
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crus
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Which crus is longer?
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The right one
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What is the right crus posterior to?
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The caudate lobe
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