The length of an axon is 5mm, and its time constant is 4 msec. A voltage change at one end of the axon is 120 mV, which results in a change of about 10.35 mV at the opposite end after 4 msec. Given this information, what is the length constant of the neuron? (Enter your

Imagine a self-reactive t cell that has not undergone clonal deletion in the thymus (that is to say, it has escaped central tolerance). if it encounters self antigen in the absence of an infection or inflammation, what will happen to this self-reactive t cell? (select two answers) (a) the t cell undergoes clonal expansion. (b) the t cell gains effector functions. (c) the t cell undergoes apoptosis. (d) the t cell becomes activated. (e) the t cell becomes anergic.