Answer:
Medullary sinuses contain histiocytes (immobile macrophages) and reticular cells. A lymph node contains lymphoid tissue, i.e., a meshwork or fibers called reticulum with white blood cells enmeshed in it. The regions where there are few cells within the meshwork are known as lymph sinus.
Explanation:
<span>All of the following can be the focus of an apprenticeship program except athletics. The correct option among all the options that are given in the question is the second option or option "B". The other choices can be negated. I hope that the answer has actually come to your help.</span>
