The expanded head at each end of a long bone is called the ________.
A. diaphysis
B. epiphysis
C. endosteum
D. periosteum
E. articular cartilage
Answer: B
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Which is not an action of interferon?
A. It stimulates macrophages and NK cells to destroy virus-infected cells. B. It triggers synthesis of enzymes that destroy viral nucleic acids. C. It signals the immune system that the secreting cell is part of the body and so should not be attacked. D. It binds to receptors of neighboring cells preventing them from being infected.
Homeostasis refers to an organism's ability to regulate its internal environment despite changes in the external environment.
Indicate whether this statement is true or false.
The fluid portion of blood that remains after centrifugation of whole blood to remove the cells is called ________.
A. effluent B. plasma C. liquor D. solvent
A nurse is caring for a patient who exhibits the following symptoms:(1) Inability to maintain balance while walking(2) Normal intelligence(3) Can initiate voluntary movements, although they are somewhat uncoordinated(4) Decreased tone in the skeletal musclesThe patient is probably suffering from a condition that affected the ________.
A. basal ganglia B. cerebral cortex C. brainstem D. cerebellum E. midbrain