sperm count – cell cycle – cell division – cell nucleus division – anaphase – chromosome segregation – meiosis – meiotic prophase i – chromosome pairing – synaptonemal complex – pachytene stage – metaphase – mitosis – anaphase – metaphase – prometaphase – prophase – telophase – prometaphase – prophase – meiotic prophase i – chromosome pairing – synaptonemal complex – pachytene stage – telophase – cytokinesis – interphase – g0 phase – g1 phase – g2 phase – s phase – cell death – apoptosis – anoikis – dna fragmentation – autophagy – necrosis – cell differentiation – adipogenesis – embryonic induction – gametogenesis – oogenesis – vitellogenesis – spermatogenesis – sperm maturation – hematopoiesis – erythropoiesis – hematopoiesis, extramedullary – leukopoiesis – lymphopoiesis – myelopoiesis – thrombopoiesis – cell fusion – cell growth processes – cell enlargement – cell proliferation – cell division – cell nucleus division – anaphase – chromosome segregation – meiosis – meiotic prophase i – chromosome pairing – synaptonemal complex – pachytene stage – metaphase – mitosis – anaphase – metaphase – prometaphase – prophase – telophase – prometaphase – prophase – meiotic prophase i – chromosome pairing – synaptonemal complex – pachytene stage – telophase – cytokinesis – cell membrane permeability – cell movement – cell aggregation – chemotaxis – chemotaxis, leukocyte – leukocyte rolling – ovum transport – sperm motility – sperm transport – cell polarity – cell respiration – cell hypoxia – respiratory burst – cell shape – cell size – cell survival – contact inhibition – cytoplasmic streaming – axonal transport – dna packaging – chromatin assembly and disassembly – endocytosis – phagocytosis – autophagy – pinocytosis – exocytosis – cell degranulation – ion channel gating – lymphocyte cooperation – membrane fusion – mitochondrial swelling – receptor aggregation – immunologic capping – receptor cross-talk – signal transduction – ion channel gating – map kinase signaling system – mechanotransduction, cellular – phototransduction – second messenger systems – calcium signaling – synaptic transmission – immunity – antibody-dependent enhancement – antibody diversity – antibody formation – antibody specificity – organ specificity – species specificity – antigen-antibody reactions – agglutination – hemagglutination – sperm agglutination – antibody affinity – antigenic modulation – binding sites, antibody – cross reactions – hemolysis – immunologic capping – passive cutaneous anaphylaxis – rh isoimmunization – autoimmunity – cd4-cd8 ratio – complement activation – complement pathway, alternative – complement