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20 Cards in this Set

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  • Back
The spleen arises from which embryologic tissue?
Mesoderm
The spleen begins to develop during which week of gestation?
5th
Which function of the spleen ends shortly after birth?
Hematopoiesis
Normal measurement of the spleen superior to inferior length
12-13cm
What is a decrease in the number of platelets withing circulation?
Thrombycytopenia
What type of organ is the spleen?
Intraperitoneal
Cells within the spleen that perform the primary lymphocytic function of the spleen
Malpighian Corpuscles
Phagocytosis of degenerating RBCs occurs within which portion of the spleen?
Red Pulp
The spleen lies ______ to the tail of the pancreas
Lateral
The left kidney lies _____ to the spleen
Posterior
The most common splenic pigment is:
hemosiderin
The malpighian corpuscles are found within which portion of the spleen?
White pulp
How does the spleen appear sonographically?
Homogeneous with an echogenicity similar to the liver
What body system is the spleen part of?
Reticuloendothelial system
The reticuloendothelial system is primarily responsible for:
Phagocytosis of pathogens and damaged or worn RBCs
Lymphocytes are able to differentiate themselves into:
Plasma and memory cells
What do plasma cells do?
Identify and produce antibodies to destroy invading microorganisms
What do memory cells do?
"remember" microorganisms that have previously attacked the body and enable antibodies to be activated more quickly
The avg. adult splenic volume is:
350mL
Most common reason to image the spleen:
Splenomegaly