All white blood cells are leukocytes Neutrophils are all phagocytic cells TF - Natural killer cells develop from the lymphoid lineage True Primary lymphoid organs are the sites where lymphocytes _____ develop an
- phagocytic action of macrophages - # and activity of NK cells - # of circulating WBC Decreases - circulating levels of pro-inflammatory cytokine (TNF, CRP, IL-6) What is considered Extreme exercise - Mod to high intensity >1.5 hrs ...