From which embryonic brain region does the medulla oblongata form?
A. telencephalon
B. diencephalon
C. mesencephalon
D. metencephalon
E. myelencephalon
E
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The potential across a cell membrane has changed drastically, from -90mV to +30mV. In other words,
A. there is a positive charge on the inside of the cell, relative to the outside. B. there is a negative charge on the inside of the cell, relative to the outside. C. the resting membrane potential has been established. D. there is no relative charge difference between the inside and the outside of the cell.
The order in which HIV breaches barriers and affects immunity is
A) ingestion, entering the circulation, entering helper T cells. B) crossing the mucosal barrier, then entering macrophages, then B cells, then natural killer cells. C) inhalation, entering the circulation, entering helper T cells. D) crossing the mucosal barrier, then entering macrophages, then entering helper T cells, then cytotoxic T cells.
The process that converts fibrinogen to fibrin and results in the formation of a more solid clot is called __________.
a) coagulation b) thrombolysis c) clot retraction d) platelet plug formation
At rest, blood flow is greatest in the ________.
A. GI tract and liver B. skin and GI tract C. kidneys and skin D. brain and liver