The Epidermis is a thin outer layer of the skin and it’s made out of Stratified Squamous Epithelium tissue.This thin layer it contains different cells that it gives the different functions.The majority of the cells in the Epidermis are Keratinocytes which they produce Keratin and it stiffens the epidermal tissue which it also forms the fingernails
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urinary‚ digestive‚ and reproductive tract. nonspecific defenders There are two distinct layers of Mucous membranes: 1. Epithelium: A thin outer covering of the mucous membranes a. Epithelial cells are “living” b. “Tightly packed” to prevent entry of pathogens c. Continual shedding of cells carries away microorganisms 2. Deeper connective tissue layer that supports the epithelium Skin composed of two major layers: nonspecific defenders 1. Epidermis: Outer multiple layers of “tightly packed” cells
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Histological Plan of the Alimentary Canal 1. The general anatomical features of the alimentary canal are listed below. Fill in the table to complete the information. Wall layer Subdivisions of the layer (if applicable) Major functions mucosa 1) epithelium; 2) lamina propria; 3) muscularis mucosa absorption secretion submucosa (not applicable) vascular supply for mucosa; protection churning; mixing; propulsion of food along the tract muscularis externa 1) circular layer 2) longitudinal layer
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cancerous disease and pulmonary diseases such as influenza‚ which are expanding worldwide. `Aerosolic drug-loaded nanogel particles can be easily administered deep into the lungs at first signals of infection. This timely remedy will save the airway epithelium from rapid degradation and development of critical secondary infections. Specific aimed at nanogels will be evolved as shortly as novel receptors and ligands are found out in the disease/virus-affected tissues and body parts. On the other hand‚
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is when normal ovarian cells begin to grow uncontrollably that this cancer develops into dangerous malignant tumors that can be found in one or both ovaries. There are three types of these cells that are responsible for ovarian cancer: Surface epithelium‚ Germ cells‚ and Stromal cells. Surface epithelial ovarian cancer is the type that grows on the outer surface of the ovary. This is the most common form of this cancer‚ appearing in about 90 percent of ovarian cancer cases. Of the more rare forms
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The principal structure of the digestive system is an irregular tube‚ open at both ends‚ called the alimentary (al-i-MEN-tar-ee) canal or the gastrointestinal (GI) tract. In the adult‚ this hollow tube is about 9 meters (29 feet) long Think of the tube as a passageway that extends through the body like a hallway through a building. Food must be broken down or digested and then absorbed through the walls of the digestive tube before it can actually enter the body and be used by cells The teeth
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Paper 1 Chapter 1: Cell structure May/June 03 1 An actively growing cell is supplied with radioactive amino acids. Which cell component would first show an increase in radioactivity? A Golgi body B mitochondrion C nucleus D rough endoplasmic reticulum 2 Which pair of organelles has internal membranes? A chloroplasts and mitochondria B chloroplasts and nuclei C mitochondria and ribosomes D nuclei and ribosomes 3 Which combination is found in a prokaryotic cell? Endoplasmic reticulum DNA RNA Nucleus
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cancer has metastasized‚ or spread‚ outside of the ovaries‚ improvements in treatment and diagnosis have increased survival rates. Ovarian cancer comes in several varieties. The most common type‚ epithelial tumors‚ occurs on the outside lining‚ or epithelium‚ of the ovary. Cancer can also develop inside the eggs contained in the ovary. These tumors are called germ cell carcinomas. A third type can form in the tissue cells that make up the ovary and produce hormones. Tumors of this type are called stromal
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location of the trachea. Explain its function in relation to respiration. The trachea is lined by cartilage and divided into two branches‚ called the bronchi‚ which enter the left and right lungs. It is composed with pseudostratified columnar epithelium. The trachea is the windpipe which conditions – warms‚ moistens‚ and removes particles – of the air inhaled. 4. Describe the structure and function of the cricoid cartilage. The cricoid cartilage is the only complete cartilage of the larynx
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1.Name the tissue types composing the epidermis and dermis. List the major layers of each and describe the functions of each layer. The epidermis is composed of keratinized stratified squamous epithelium tissue. The cells are specifically keratinocytes‚ melanocytes‚ Merkel cells‚ and Langerhans’ cells. The layers of the epidermis are the basal layer (stratum basale)‚ it is the deepest layer and is attached to the dermis‚ the cells are actively mitotic. The next layer is the prickly layer (stratum
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