stem nucleus
111Parkinson's disease — Parkinson s redirects here. For other uses, see Parkinson s (disambiguation). Parkinson s disease Classification and external resources …
112human embryology — ▪ biology Introduction the process encompassing the period from the formation of an embryo, through the development of a fetus, to birth. The human body, like that of most animals, develops from a single cell produced by the union of… …
113Rejuvenation (aging) — Rejuvenation is the procedure of reversing the aging process, thus regaining youth. As people get older, their health worsens, strength and intelligence generally diminish, and beauty is thought by many to go away. Rejuvenation is distinct from… …
114EVI1 — Ecotropic viral integration site 1 is a human protein encoded by the EVI1 gene. EVI1 was first identified as a common retroviral integration site in AKXD murine myeloid tumors. It has since been identified in a plethora of other organisms, and… …
115Red blood cell — Human red blood cells (6 8μm) Red blood cells (abbreviated RBCs; also referred to as erythrocytes or simply, as red cells[1]) are the most common type of blood cell and the vertebrate organism s principal means of delivering oxygen (O2) to the… …
116Gene expression — For vocabulary, see Glossary of gene expression terms. For a non technical introduction to the topic, see Introduction to genetics. Genes are expressed by being transcribed into RNA, and this transcript may then be translated into protein. Gene… …
117Nodal signaling — is a signal transduction pathway that is important in pattern formation and differentiation during embryo development.[1] The nodal family of proteins, a subset of the transforming growth factor beta (TGFβ) superfamily, is responsible for… …
118RNA interference — (RNAi) is a mechanism that inhibits gene expression at the stage of translation or by hindering the transcription of specific genes. RNAi targets include RNA from viruses and transposons (significant for some forms of innate immune response), and …
119Cerebral peduncle — Brain: Cerebral peduncle Superficial dissection of brain stem. Ventral view. ( Cerebral peduncle visible in red at center right.) …
120Erythropoiesis — is the process by which red blood cells (erythrocytes) are produced. In human adults, this usually occurs within the bone marrow. In the early fetus, erythropoiesis takes place in the mesodermal cells of the yolk sac. By the third or fourth month …
