Term
| What is the liver derived from? |
|
Definition
| The epithelium of the foregut of the gastrointestinal tract. |
|
|
Term
| What produces the hepatocytes of the hepatic diverticulum? |
|
Definition
|
|
Term
| What produces the serous and fibrous stroma of the liver capsule, falciform ligament, and the Kupffer cells? |
|
Definition
| The splanchnic mesenchyme |
|
|
Term
| What kind of cells are responsible for hematopoesis in embryonic life? |
|
Definition
|
|
Term
| While an embryo, what does the hepatic diverticulum divide into? |
|
Definition
| a small ventral potion that will become the gallbladder and a larger liver primordium. |
|
|
Term
| When does hematopoiesis begin? |
|
Definition
| during the 6th embryonic week |
|
|
Term
| When does hematopoiesis cease? |
|
Definition
|
|
Term
| What does the hepatic parenchyma consist of? |
|
Definition
| hepatocytes and Kupffer cells organized into lobules. |
|
|
Term
| within the lobules of the liver, how are the hepatocytes arranged? |
|
Definition
| radially in cords around a central hepatic venule. |
|
|
Term
| is the liver retroperitoneal, intraperitoneal, or extraperitoneal? |
|
Definition
|
|
Term
| Which parts of the liver are not intraperitoneal? |
|
Definition
| gallbladder fossa, porta hepatis, and the bare area (adjacent to the IVC) |
|
|
Term
| Where is the bare area of the liver? |
|
Definition
| on the posterior aspect of the right lobe of the liver |
|
|
Term
| What is the bare area of the liver bounded by? |
|
Definition
| the coronary ligament, right triangular ligament, and left triangular ligament. |
|
|
Term
| How much does an adult liver weigh? |
|
Definition
|
|
Term
| What is the approximate transverse diameter of the normal adult liver? |
|
Definition
|
|
Term
| What is the approximate AP right lobe mid-clavicular measurement of the normal adult liver? |
|
Definition
|
|
Term
| What is the approximate right lobe craniocaudad mid-clavicular line length of a normal adult liver? |
|
Definition
|
|
Term
| When should hepatomegaly be considered? |
|
Definition
| when the craniocaudad measurement of the right liver at the mid-clavicular line is greater than 16 cm. |
|
|
Term
| What is the layer of connective tissue surrounding the liver and portal vessels called? |
|
Definition
|
|
Term
| What region is the Liver located in? |
|
Definition
| the right hypochondriac region |
|
|
Term
| How many segments does the traditional anatomic system divide the liver into? |
|
Definition
4
Right lobe, Left lobe, Quadrate lobe, Caudate lobe |
|
|
Term
the right lobe is approximately how many times larger than the left lobe?
(traditional segments) |
|
Definition
|
|
Term
what separates the right and left lobes of the liver?
(traditional segments) |
|
Definition
| the falciform ligament on the diaphragmatic surface. |
|
|
Term
What are the three fossae along the posterior and visceral surfaces of the right lobe.
(traditional segments) |
|
Definition
| gallbladder, porta hepatis, and the IVC. |
|
|
Term
The Left lobe of the liver lies where?
(traditional segments) |
|
Definition
| left of the falciform ligament and the ascending portion of the proximal left portal vein. |
|
|
Term
Which lobe of the liver lies on the visceral surface?
(traditional segments) |
|
Definition
|
|
Term
The quadrate lobe lies anterior to what?
(traditional segments) |
|
Definition
|
|
Term
what lies between the gallbladder fossa and the falciform ligament fissure for the ligamentum teres.
(traditional segments) |
|
Definition
|
|
Term
which lobe lies posterior to the right lobe and porta hepatis?
(traditional segments) |
|
Definition
|
|
Term
which lobe lies anterior and medial to the IVC?
(traditional segments) |
|
Definition
|
|
Term
which lobe lies posterior to the ligamentum venosum?
(traditional segments) |
|
Definition
|
|
Term
which lobe lies superior to the main portal vein?
(traditional segments) |
|
Definition
|
|
Term
| the functional system divides the liver into how many lobes? |
|
Definition
3
right, left, and caudate |
|
|
Term
| how do major hepatic veins course? |
|
Definition
(between lobes and segments)
interlobar and intersegmental |
|
|
Term
| how do major branches of portal veins course? |
|
Definition
(within segments)
intrasegmental |
|
|
Term
what are four main fissures or ligaments used as divisional landmarks in the liver?
(functional system) |
|
Definition
| main lobar fissure, ligamentum venosum, falciform ligament, ligamentum teres |
|
|
Term
what are three main fossae used as divisional landmarks in the liver?
(functional system) |
|
Definition
| gallbladder, porta hepatis, and IVC |
|
|
Term
what comprises the bulk of hepatic tissue?
(functional system) |
|
Definition
|
|
Term
| what are the right and left lobes of the liver divided by in the functional system? |
|
Definition
| main lobar fissure and the middle hepatic vein. |
|
|
Term
What divides the right lobe of the liver superiorly from the medial segment of the left lobe?
(functional system) |
|
Definition
|
|
Term
What separates the right lobe inferiorly from the left lobe?
(functional system) |
|
Definition
| a plane running within the main lobar fissure. |
|
|
Term
the right lobe is subdivided into what segments?
(functional system) |
|
Definition
| anterior and posterior segments |
|
|
Term
what are the anterior and posterior segments of the right lobe divided by?
(functional system) |
|
Definition
|
|
Term
The dorsal side of the left lobe is separated from the caudate lobe by what?
(functional system) |
|
Definition
|
|
Term
the left lobe is subdivided into what segments?
(functional system) |
|
Definition
| medial and lateral segments |
|
|
Term
The medial and lateral segments of the left lobe are divided sagitally by what?
(functional system) |
|
Definition
| left hepatic vein, anteriorly coursing left portal vein, and the ligamentum teres. |
|
|
Term
which lobe is posterior to the porta hepatis, anterior to the IVC, between the ligamentum venosum and the IVC?
(functional system) |
|
Definition
|
|
Term
Which margin of the caudate lobe forms the hepatic boundary of the superior recess of the lesser sac?
(functional system) |
|
Definition
|
|
Term
Which margin of the caudate lobe extends in a tongue-like projection(the caudate process)between the IVC and portal vein?
(functional system) |
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
| tongue-like projection of the right lobe that may extend to the iliac crest. |
|
|
Term
| Is Riedel's lobe more common in males or females? |
|
Definition
|
|
Term
| What normal variant of the liver displays a mirror image of the liver located on the left side of the body instead of the right? |
|
Definition
|
|
Term
| What normal variant of the liver may cause the liver to be symmetric in appearance of lobes or may affect liver location? |
|
Definition
| Polysplenia/asplenia complex |
|
|
Term
| What are indentations of the diaphragn that subdivide the hepatic parenchyma? |
|
Definition
|
|
Term
| How much bile is normally formed per 24 hrs? |
|
Definition
800mL-1000mL
(approx. 1 Liter) |
|
|
Term
|
Definition
|
|
