Which cells maintain the blood thymus barrier?
A) T regulatory cells
B) natural killer cells
C) dendritic cells
D) epithelial reticular cells
E) memory cells
Answer: D
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Erythrocytes are synthesized in what organ and under the control of what chemical?
A) kidney, under control of transferrin B) bone marrow, under control of bilirubin C) liver, under control of bilirubin D) bone marrow, under control of erythropoietin E) liver, under control of erythropoietin
The determinant of whether heart valves are open or closed is the pressure difference across them
Indicate whether the statement is true or false.
Cholecystokinin decreases stomach motility and inhibits release of gastrin
Indicate whether this statement is true or false.
a neuron with 2 processes (Axon and Dendrite)
A. Unipolar B. Anaxonic C. Bipolar D. Multipolar