Match the units associated with a bone. 1.central hollow shaft
2. fat cells
3. blood vessel
4. protective covering
5. makes blood cells

perlosteum
red marrow
marrow cavity
yellow marrow
Haverslan canal

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.