kindly give me easiest and simplest answer.
-
The classic model of wound healing is divided into three or four sequential, yet overlapping,[2] phases: (1) hemostasis (not considered a phase by some authors), (2) inflammatory, (3) proliferative and (4) remodeling.[3] Upon injury to the skin, a set of complex biochemical events takes place in a closely orchestrated cascade to repair the damage.[2] Within minutes post-injury, platelets (thrombocytes) aggregate at the injury site to form a fibrin clot. This clot acts to control active bleeding (hemostasis). The speed of wound healing can be impacted by many factors, including the bloodstream levels of hormones such as oxytocin.[4]
In the inflammatory phase, bacteria and debris are phagocytosed and removed, and factors are released that cause the migration and division of cells involved in the proliferative phase.
The proliferative phase is characterized by angiogenesis, collagen deposition, granulation tissue formation, epithelialization, and wound contraction.[5] In angiogenesis, new blood vessels are formed by vascular endothelial cells.[6] In fibroplasia and granulation tissue formation, fibroblasts grow and form a new, provisional extracellular matrix (ECM) by excreting collagen and fibronectin.[5] Concurrently, re-epithelialization of the epidermis occurs, in which epithelial cells proliferate and 'crawl' atop the wound bed, providing cover for the new tissue.[7]
In the inflammatory phase, bacteria and debris are phagocytosed and removed, and factors are released that cause the migration and division of cells involved in the proliferative phase.
The proliferative phase is characterized by angiogenesis, collagen deposition, granulation tissue formation, epithelialization, and wound contraction.[5] In angiogenesis, new blood vessels are formed by vascular endothelial cells.[6] In fibroplasia and granulation tissue formation, fibroblasts grow and form a new, provisional extracellular matrix (ECM) by excreting collagen and fibronectin.[5] Concurrently, re-epithelialization of the epidermis occurs, in which epithelial cells proliferate and 'crawl' atop the wound bed, providing cover for the new tissue.[7]
-
The questions just asks for what type of cell division. There are two basic types, mitosis and meiosis. meiosis is only for reproduction. It reduces the number of chromososmes in half so that when two cells combine (like an egg and sperm) they will have the correct total number of chromososmes.
For all other divisions in somatic cells (not reproductive cells) you've got mitosis to rely on. This can be used for replication, growth and repair. It takes one cell and makes two identical daughter cells from it. So, if you got hurt, you need to make more cells like skin cells to replace the lost ones. making more cells that are like the old ones is MITOSIS :)
For all other divisions in somatic cells (not reproductive cells) you've got mitosis to rely on. This can be used for replication, growth and repair. It takes one cell and makes two identical daughter cells from it. So, if you got hurt, you need to make more cells like skin cells to replace the lost ones. making more cells that are like the old ones is MITOSIS :)
-
mitosis, because it divides to create new skin cells to replace damaged ones.