| 单词 | stratum basale |
| 例句 | The cells in all of the layers except the stratum basale are called keratinocytes. Anatomy and Physiology 2013-06-19T00:00:00Z Merkel cell Part of the stratum basale of the epidermis, these cells help to relay information about the texture, curvature and shape of objects. Superpowered skin 2018-11-20T05:00:00Z Basal cell carcinoma and squamous cell carcinoma are highly curable, and arise from cells in the stratum basale and stratum spinosum, respectively. Anatomy and Physiology 2013-06-19T00:00:00Z From deep to superficial, these layers are the stratum basale, stratum spinosum, stratum granulosum, and stratum corneum. Anatomy and Physiology 2013-06-19T00:00:00Z As new cells are formed, the existing cells are pushed superficially away from the stratum basale. Anatomy and Physiology 2013-06-19T00:00:00Z The stratum basale also contains melanocytes, cells that produce melanin, the pigment primarily responsible for giving skin its color. Anatomy and Physiology 2013-06-19T00:00:00Z Two other cell types are found dispersed among the basal cells in the stratum basale. Anatomy and Physiology 2013-06-19T00:00:00Z Figure 5.8 Skin Pigmentation The relative coloration of the skin depends of the amount of melanin produced by melanocytes in the stratum basale and taken up by keratinocytes. Anatomy and Physiology 2013-06-19T00:00:00Z Merkel cells, seen scattered in the stratum basale, are also touch receptors. Anatomy and Physiology 2013-06-19T00:00:00Z In the skin, these changes are reflected in decreased mitosis in the stratum basale, leading to a thinner epidermis. Anatomy and Physiology 2013-06-19T00:00:00Z Cells of the epidermis derive from stem cells of the stratum basale. Anatomy and Physiology 2013-06-19T00:00:00Z The cells in the stratum basale bond to the dermis via intertwining collagen fibers, referred to as the basement membrane. Anatomy and Physiology 2013-06-19T00:00:00Z Figure 5.5 Layers of the Epidermis The epidermis of thick skin has five layers: stratum basale, stratum spinosum, stratum granulosum, stratum lucidum, and stratum corneum. Anatomy and Physiology 2013-06-19T00:00:00Z The stratum basale is a single layer of cells primarily made of basal cells. Anatomy and Physiology 2013-06-19T00:00:00Z Figure 5.6 Cells of the Epidermis The cells in the different layers of the epidermis originate from basal cells located in the stratum basale, yet the cells of each layer are distinctively different. Anatomy and Physiology 2013-06-19T00:00:00Z Merkel cells are located in the stratum basale of the epidermis. Anatomy and Physiology 2013-06-19T00:00:00Z Recall that melanin is produced by cells called melanocytes, which are found scattered throughout the stratum basale of the epidermis. Anatomy and Physiology 2013-06-19T00:00:00Z The nail body forms at the nail root, which has a matrix of proliferating cells from the stratum basale that enables the nail to grow continuously. Anatomy and Physiology 2013-06-19T00:00:00Z Basal cell carcinomas start in the stratum basale and usually spread along this boundary. Anatomy and Physiology 2013-06-19T00:00:00Z Before the basal stem cells of the stratum basale can recreate the epidermis, fibroblasts mobilize and divide rapidly to repair the damaged tissue by collagen deposition, forming granulation tissue. Anatomy and Physiology 2013-06-19T00:00:00Z |
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