Describe the role of regulatory neurons
A) Regulatory neurons act as part of the defense system to protect the presynaptic neurons from pathogens.
B) Regulatory neurons block presynaptic neurons from drugs and other chemicals in the blood.
C) Regulatory neurons assist in the repair of injured neurons.
D) Regulatory neurons speed the propagation of action potentials between presynaptic neurons and postsynaptic neurons.
E) Regulatory neurons facilitate or inhibit the activities of presynaptic neurons by affecting the membrane of the cell body or by altering the sensitivity of axon terminals.
Answer: E
You might also like to view...
Bipolar disordersA) involve both mania and depression.B) are most effectively treated with drugs that increase availability of dopamine.C) are an exaggeration of normal changes in mood.D) involve hearing voices and other delusions.E) are caused by excessive production of dopamine.
What will be an ideal response?
In a patient taking a hypothetical immunosuppressive drug, all adaptive responses are inhibited. All innate immune responses are still functional, although some are reduced in strength. While taking this drug, which of the following events will still occur in response to infection?
A. Production of antibodies that bind to antigens B. Antigen interaction with lymphocytes C. Activation of lymphocytes D. Vasodilation of local blood vessels E. B-cell differentiation into plasma cells
Which of the following is a normal hematocrit value?
A. 12.5 mg/dL B. 42% C. 78% D. 5.0 X 106 RBCs/L E. 33 mg
If your urine contains fewer potassium ions than your filtrate, then the potassium has been:
A. filtered and secreted. B. filtered and reabsorbed. C. filtered only. D. secreted only.