Answer:
Kupffer cells, also known as stellate macrophages due to their particular structure while viewed under a microscope, were first identified by scientist Karl Wilhelm von Kupffer, after whom the cells were named, in 1876.
These cells, whose origin is in the yolk sack during fetal development, later on move to the liver where they will stay and further differentiate into their mature versions.
These cells are part of the liver cells, and are found particularly on the walls of the sinusoids, where they perform their two most important tasks. First, these cells are part of the immune system, as they are essentially macrophages. However, their role is pretty unique, as they are responsible not just for phagocytosis of invading bacteria, and other pathogens, and initiating immune responses, but also, this cell plays a role in decomposing red blood cells who are dying, and taking up the hemoglobin from them to further break that into reusable globin, and the heme group, from which iron is further extracted to be re-used and also to create bilirrubin, a part of bile.
Finally, these cells have been found to be connected to hepatic cirrhosis, as in their process of detoxifying ethanol, they produce toxins that force the liver cells to produce collagen, and thus to become fibrous.
Answer:
a body mass index (BMI) over 30 is a) the sole marker for obesity b) one of the markers for flexibility c) the sole marker for muscle mass d)one of the markers for obesity
Answer:
Nursing Experience and expertise and evidence from the community in case you are working with a community rather than an individual.
Explanation:
Evidence-based sources includes research studies, evidence from nursing experience and expertise, and evidence from community leaders. When working with communities, Culturally and financially appropriate best practices should be identified and used.
Again, the use of evidence to determine the appropriate use of interventions that are culturally sensitive and cost effective is very important.
