Dark and white meat. Chickens have fast and slow twitch muscle, too. Dark meat, like in chicken legs, is mainly made up of slow twitch fibres. White meat, like in chicken wings and breasts, is largely made up of fast twitch muscle fibres.Chickens use their legs for walking and standing, which they do most of the time.ark and white meat. Chickens have fast and slow twitch muscle, too. Dark meat, like in chicken legs, is mainly made up of slow twitch fibres. White meat, like in chicken wings and breasts, is largely made up of fast twitch muscle fibres.
When people talk about spina bifida, most often they are referring to myelomeningocele. Myelomeningocele is the most serious type of spina bifida. With this condition, a sac of fluid comes through an opening in the babyâs back. Part of the spinal cord and nerves are in this sac and are damaged.
Totipotent cells differentiate into embryonic and extraembryonic cell types, whereas, pluripotent cells are defined as the descendants of totipotent cells which differentiates into cells derived from any of the three germ layers, although multipotent or unipotent progenitor cells are sometimes referred to as stem cells.ifferentiation of HSCs to lineage specific primitive progenitor cells like Myeloid stem cells (IL-3 and GMCSF) or Lymphoid stem cells (IL-3), permit proliferation of the committed progenitor cells into other categories of major marrow cells. The various progenitor cells are identified by the type of colony they form.