Keratinized Stratified Squamous Epithelium (White Skin): Vertical Section (Slide 7) List of Tissue: This section shows white skin which is composed of keratinized stratified squamous epithelium. The structures of the white skin includes the keratinized stratified squamous epithelium, merocrine sweat glands, apical (free) surface, basal membrane, sebaceous gland, dense irregular connective tissue, collagen fibers in bundles, a blood vessel, and nuclei of the epithelium. Description of the tissues:
region. Thickest on the soles of the feet and thinnest in the area around the eyes. The epidermis is divided into 4 layers from the bottom are stratum basale, stratum spinosum, stratum granulosum, and stratum corneum. For the hand palms and the foot soles, between stratum corneum and stratum granulosum also has a transparent layer called stratum lucidum. Stratum Basale is the bottom layer of the epidermis, directly adjacent to the
In this discussion post, I'll discuss how the structure of the epidermis and dermis contribute to their functions. I'll also describe all the structures of each and describe how each structure contributes to the function of their respective tissue layer. The epidermis and dermis are tissue layers that make up the skin (integument) covering the body. The layers (strata) of the epidermis range from four to five, depending on where they are on the body; and are classified into two types of skin: thin
It is much thicker than the epidermis and contains collagen, reticular and elastic fibers, and is vascular. The area where the dermis meets the epidermis is unique in that the epidermis contains ridges at the stratum basale layer which interlocks with the dermal papillae, which are upward projections, like waves, on the uppermost surface of the dermis. The dermis had two sublayers. The papillary layer is in the dermal papillae and near it and is made up of areolar
excretion of urea, excretion of salts and water are a few things that the skin is also capable of. The top layer of the skin is called the epidermis. The epidermis contains five different layers. These layers are the stratum corneum, the stratum lucidum, the stratum spinosum, and the stratum basale. In the epidermis there are four different cell types. The keratinocytes which produce keratin, the merkel cells that are sensitive to touch, the langerhans cells which is a dendritic type off cell, and the
generally divided into two layers, the epidermis and the dermis. Below the dermis a subcutaneous fat layer is found. The epidermis can be further divided into several sub-layers. These are the stratum corneum, the stratum lucidum, the stratum granulosum, the stratum spinosum, and the stratum germinativum. The stratum germinativum is usually referred to as the basal layer. Skin optics is the manner in which skin reflects and transmits light of different colors, or wavelengths, is determined by the
*Stratum corneum is absent. *Stratum corneum is absent. *Dermis is less vascularised. *Dermis is highly vascularised. *Dermis is not differentiated. *Dermis is differentiated into stratum . . spongiosum and stratum compactum
are Langerhans cells, melanocytes, Merkel cells and sporadic T-lymphocytes. Epidermis is subdivided into the following strata (beginning with the outermost layer): stratum corneum (SC), stratum granulosum, stratum spinosum (SS) and stratum basale (SB). In the thick skin on the soles of the feet and the palms of the hands, the stratum lucidum (SL) can be found (Murphy, 1997, James et al.,
epidermis, which is the outer layer of the skin, is made up of four to five layers in some parts (Shier, Butler, & Lewis, 2009). In the majority of the areas, just four layers can be differentiated: the stratum basale, stratum spinosum, stratum granulosum, and stratum corneum (p.119). Another layer is the stratum lucidum which can be found in the thicker part of the skin of the palms and ... ... middle of paper ... ...be also highly affected in people with albinism. Usually people with albinism wait until
Foot and Mouth Disease Synonym : Aphthous fever,Aftosa,Enzootic apthiae Importance Foot and mouth disease (FMD) is a highly contagious viral disease that primarily affects cloven-hooved livestock and wildlife. Although adult animals generally recover, the morbidity rate is very high in naïve populations, and significant pain and distress occur in some species. Sequelae may include decreased milk yield, permanent hoof damage and chronic mastitis. High mortality rates can be seen in young animals
The ANS is part of the peripheral nervous system, being split into sympathetic pathways, which prepare the body for action and parasympathetic pathways which prepare the body for rest. This regulates the functions of the body and some of the muscles automatically. Sympathetic pathways change nerve activity during times of stress, exercise, low blood glucose levels, excitement or fear, due to the flight or fight response. These changes can have an effect on homeostasis by increasing heart rate, increasing