Quote [Peng D, Ando K, Hußmann M, et al. Proper migration of lymphatic endothelial cells requires survival and guidance cues from arterial mural cells. eLife. 2022.]
Representative confocal time-lapse imaging of lymphatic endothelial cell migrating and interacting with mural cels in trunk at 2 days post fertilization.
It shows mucosa of stomach. Reticular blood vessels stretched underneath the mucosa have been seen. Gastric mucosa with its secreting mucus is protected from gastric acid and digestive juice in order not to be digested by them. It is known that NSAIDs (Nonsteroidal Anti-Inflammatory Drugs), which provides pain-killing and antipyretic effects, cause the suppression of gastric mucous secretion by immediate dysfunctions of mucous cell besides the inhibition of blood flow in stomach. As hydrochloric acid is added in the concentration equal to gastric acid over gastric mucosa whose defense has been weakened by the administration of NSAIDs, the mucosa is being damaged and starts bleeding. In this way, when the balance between protection and aggressive factors gets upset, gastric ulcer can occur by gastric mucosa’s desquamating.
There are a lot of tiny lines on fingertips and palm called epidermal ridges. The ducts of sweat glands is open on tops of the ridges causing prints that are left on a surface.
毛も細胞でできています。毛母細胞は毛球で分裂増殖し、新しく生まれた細胞が毛幹を押し上げるようにして毛を伸ばし、やがて角質化します。黒くみえる顆粒はメラニン色素です。
Hair is made of cells. Hair matrix cells are dividing and multiplying at the hair bulb. These new born cells push the hair shaft upward (hair growth) and become keratinized. Many black granules you can see is melanin. They are pigment produced by melanocytes and gives color to your hair.