Cervical cancer cells, SEM - Stock Image - M850/0348
Cervical cancer cells. Coloured scanning electron micrograph (SEM) of two cervical cancer cells.
Bone marrow stem cell, SEM - Stock Image - G442/0440
Bone marrow stem cell, coloured scanning electron micrograph (SEM). This cell is known as a multipotential stem cell because it can form the precursors to every type of blood cell.
Conducto de Vida (Passage of Life)
Artery with red blood cells Courtesy of Laura Tormo Cifuentes, Museo Nacional de Ciencias Naturales-CSIC Taken on an FEI Inspect S
Intestinal villi, SEM - Stock Image - C010/7943
Intestinal villi. Coloured scanning electron micrograph (SEM) of villi on the lining of the small intestine.
Human embryo at day four
Scanning electron micrograph of a human embryo at day 4. The protein coat surrounding the egg (zona pellucida, gold) has been slit to expose the embryonic cells inside (red). These cells go on to form the embryo and can be harvested and cultured to give rise to embryonic stem (ES) cells. Microvilli are visible on the surface of the embryonic cells (blastomeres) and numerous sperm (blue) are still visible on the outside of the zona pellucida. Credit: © (CC by-nc-nd 2.0) Yorgos Nikas, Wellcome…
Image BN1637: Skin layers. Colored scanning electron micrograph (SEM) of sectioned human skin. The top layer is the stratum corneum (flaky, pale brown), a cornified layer of the epidermis that is composed of flattened, dead skin cells that form the surface of the skin. The dead cells from this layer are continuously being shed and replaced by cells from the living epidermal layer below it (red). The lowest layer (not seen here) is the dermis, a thick layer of fibrous connective tissue that…
Cross-section of the esophagus showing, from the central region outward, the lumen, mucosa, submucosa, a muscularis externa, and a thin adventia or serosa. SEM X60
False-colour SEM of an egg at ovulation - Stock Image - P632/0027
Ovulation. False-colour scanning electron micrograph of the ovulation process.