Immunoglobulins, formed of five subunits, that are the first antibodies to be produced in response to infection, are
A) IgA.
B) IgD.
C) IgE.
D) IgG.
E) IgM.
Question 2
In the corticospinal pathway, the neuron that exits the spinal cord and enters the spinal nerve is called the ________ neuron.
A) upper sensory
B) lower sensory
C) upper motor
D) lower motor
E) pyramidal