The common name for an oocyte is egg cell. A de­veloping egg is called an oocyte. It is important to define Oocytes before ex­plaining how their qual­ity relates to Polycystic ovary syndrome (PCOS) ...

In 1827, with the discovery of the human ovum, the mistaken biology of Aristotle was discredited. Scientists increasingly understood that the union of sperm and egg at conception produces a new ...

Life takes shape with the motion of a single cell. In response to signals from certain proteins and enzymes, a cell can start ...

Among the many marvels of life is the cell's ability to divide and thus enable organisms to grow and renew themselves. For ...

Scientists have found a way to study early embryonic development without real embryos. Using CRISPR, they programmed stem cells to self-organize into structures mimicking early embryos. The cells show ...

Mar. 19, 2025 — The cells that make up the walls of the finest of all lymphatic vessels have a lobate, oak leaf-like shape that makes them particularly resilient to changes in fluid volume.

The researchers observed that light activated the enzyme, causing predictable cell movements. For example, specific light ...

Skin stem cells are multipotent adult stem cells present in the adult skin, which can self-renew and differentiate into different cell lineages of the skin. Skin stem cells are active during skin ...

Feb. 5, 2025 — A newly discovered line of communication between body muscle and the pituitary gland may play an unexpected role in female fertility, according to a new study. Researchers found ...

Healthy semen looks off-white or slightly yellow with a consistency similar to raw egg whites and a slight scent of ammonia ... When viewed under the microscope, sperm appear as oval-shaped cells with ...