Stem Cells

Red blood cells are primarily produced in the bone marrow throughout a person's life. In children between ages 5 to 20, the bone marrow in the long bones, such as the femur and tibia, is particularly active in producing red blood cells to support their growth and development.

Differentiate into various specialized cell types and have the ability to self-renew. This allows stem cells and embryonic cells to develop into different tissues and organs during growth and repair processes.

This means there are 0-2 red blood cells visible under a microscope in a urine sample. A normal result typically falls within this range. If the number exceeds 2 red blood cells per high power field, it may indicate a potential health issue that needs further investigation.

The tissue in plants that contains stem cells is called meristematic tissue. This tissue is responsible for cell division and growth in plants, allowing for the formation of new tissues and organs. It is typically found at the tips of roots and shoots.

The embryonic developmental system refers to the processes during which a single fertilized egg develops into a complex multicellular organism. It involves cell division, differentiation, and specialization to form various tissues and organs in a coordinated manner. Genetic and environmental factors play critical roles in regulating this system.

The major producer of blood cells is the bone marrow, which is found in the cavities of bones. In the bone marrow, hematopoietic stem cells give rise to red blood cells, white blood cells, and platelets through a process called hematopoiesis.

Using model organisms allows researchers to study the behavior and characteristics of adult stem cells in a controlled environment. These models provide valuable insights into the biological processes of adult stem cells, which can then be applied to understanding how they function in humans. Additionally, model organisms offer a simpler and more cost-effective way to conduct experiments compared to using human subjects.

Stem cells responsible for lymphopoiesis are primarily located in the bone marrow. As they differentiate, lymphoid progenitor cells move to the thymus (in the case of T lymphocytes) or remain in the bone marrow (in the case of B lymphocytes) to further mature into functional lymphocytes.

Embryonic stem cells are derived from embryos and have the potential to develop into any type of cell in the body. Adult stem cells are found in various tissues and can give rise to specific types of cells in that tissue.

Thymus. It is in the thymus where these stem cells differentiate into T cells through a series of maturation and selection processes. The thymus plays a crucial role in the development of a functional and diverse T cell population in the immune system.

The major issue involving the harvesting of embryonic stem cells is ethical concerns surrounding the destruction of embryos in the process. Critics argue that this raises ethical questions about the sanctity of human life and the moral status of the embryo. This has led to various regulations and debates on the ethical implications of using embryonic stem cells for research and medical purposes.

Human embryonic stem cells are typically extracted from the inner cell mass of a blastocyst, a structure that forms a few days after fertilization. The blastocyst is usually donated for research purposes with informed consent from the donors. Researchers can then extract the stem cells from the inner cell mass by using techniques that dissociate the cells from the embryo.

Erythrocytes are formed from stem cells called hematopoietic stem cells, which are found in the bone marrow. These stem cells have the ability to differentiate into various blood cell types, including red blood cells (erythrocytes).

Adult stem cells can be harvested from the bone marrow, blood, or adipose tissue. The process involves first identifying the source of stem cells, then extracting the cells through procedures such as bone marrow aspiration, apheresis, or liposuction. The harvested stem cells are then processed and purified before being used for therapeutic purposes.

Formed elements that arise from myeloid stem cells include erythrocytes (red blood cells), megakaryocytes (platelets), granulocytes (neutrophils, basophils, and eosinophils), and monocytes (which differentiate into macrophages and dendritic cells).

Yes, embryonic stem cells tend to elicit more controversy and raise ethical concerns compared to adult stem cells. This is because obtaining embryonic stem cells usually involves the destruction of human embryos, which some people view as morally objectionable. Adult stem cells, on the other hand, are obtained without harming embryos and are therefore generally accepted with fewer ethical objections.

Adult stem cells are better than embryonic stem cells in some ways because they have less risk of immune rejection, as they can be collected from the patient's own body. Additionally, the use of adult stem cells avoids the ethical concerns surrounding the use of embryonic stem cells. Adult stem cells have also shown promising results in various treatments and therapies.

No, the thymus does not produce red blood cells. It is responsible for the development and maturation of T cells, a type of white blood cell important for immune function. Red blood cells are produced in the bone marrow.

Hematopoietic stem cells are the seed cells that give rise to T cells. These stem cells are found in the bone marrow and have the ability to differentiate into various types of blood cells, including T cells. T cells play a crucial role in the immune system by recognizing and attacking foreign invaders like viruses and bacteria.

Most likely because embryonic stem cell research is often associated with another controversial social issue-- abortion. Some (but not all) embryos used in stem cell research have been donated for research, but the donors are clinics which perform abortions. Also, even in cases that did not involve abortion, such as excess embryos from fertility clinics, some opponents of using embryos believe life begins when an egg has been fertilized, so therefore, the embryo represents human life, and to destroy any embryo to do stem cell research is thus immoral. Although not everyone agrees that a fertilized egg is the same as a human being, the pro-life community has been very vocal in opposition, keeping embryonic stem cell research mired in controversy.

On the other hand, extracting adult stem cells does not require destroying an embryo nor does it affect a fertilized egg, so some pro-life supporters feel it is morally preferable to use adult stem cells for research. Unfortunately, adult stem cells are not as helpful to utilize in research because they cannot do some of the things that can be done with embryonic stem cells. Thus, this too is controversial, as scientists and researchers believe they are being hampered in finding cures for diseases because of the religious beliefs of certain people who oppose the use of embryonic stem cells.

Adult stem cells have been used and are still being used to cure many ailments as research continues.

Embryonic stem cells have never been useful for anything do to issues of getting the cells to work. Adult stem cells, on the other hand, have been very useful is stem cell research.

There is a hormone produced by the kidneys called erythropoietin that stimulates production of red blood cells. Certain cytokines such as colony stimulating factors and interleukins produced by the red bone marrow drive development of white blood cells. Both white and red come from the same hemopoietic stem cell.

Changing pressure of the flow of liquids around stem cells can induce cells to become artery cells.

If you didn't have stem cells then you wouldn't grow! You see, your body needs Stem cells because they are the master cell of the body from which all other cells, tissues, organs and bone are created.

Stem cells can divide and renew themselves for long periods of time, remain undifferentiated in form, and can develop into a variety of specialized cell types.

The use of stem cells to treat autoimmune diseases remains experimental at this time, but I am optimistic that this will eventually be a useful form of treatment, once the details are figured out.