Which is not correct regarding the white pulp of the spleen?
A. Its cells are arranged in clusters that are circular in shape.
B. It contains a central artery.
C. Its cells include T-lymphocytes, B-lymphocytes, and macrophages.
D. It serves as a blood reservoir.
Answer: D
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An amine group that is removed from an amino acid within a hepatocyte is then
A. used to form a peptide bond between a protein and a lipid. B. used to generate bile salts and excreted in the feces. C. converted to urea and eliminated as part of urine. D. sent to a mitochondria to enter the citric acid cycle.
Interactions between B cells and helper T cells stimulate the actions of cytotoxic T cells.
Answer the following statement true (T) or false (F)
Which of the following occurs during repolarization?
A) Voltage-gated potassium channels open, potassium flows into the cell and some voltage-gated sodium channels inactivate. B) Voltage-gated potassium channels open. C) Potassium flows into the cell. D) Some voltage-gated sodium channels inactivate. E) Voltage-gated potassium channels open and potassium flows into the cell.
Which bones form the nasal septum?
A. Vomer and maxilla B. Palatine and sphenoid C. Ethmoid and inferior nasal conchae D. Sphenoid and vomer E. Ethmoid and vomer