HISTOLOGY: EPITHELIAL TISSUE o Human body composed of 4 basic types of tissue: epithelial‚ connective‚ nervous and muscular o Formed by cells and molecules of the extracellular matrix o Connective tissue: characterized by the abundance of extracellular fluid o Organs can be divided by parenchyma (composed of cells for main function of organ) and stroma ( supporting tissue) o Except in brain and spinal cord stroma made of connective tissue o Epithelial tissue: covering‚ lining protecting surfaces
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of flattened sacs receives and processes protein that has been dispatched by the endoplasmic reticulum. The proteins are modified and released at the cell membrane. P2 There are four main types of tissue: epithelial‚ connective‚ muscle and nervous. [pic] Epithelial tissue is found in skin and in diverse forms has special functions in other areas of the body. The main types are: simple epithelium‚ a single layer of squamous (flat)‚ cuboidal (cube like)‚ or columnar (tall) cells;
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muscle tissue * Cardiac * Smooth * Skeletal A muscle cell is also called a myocyte What type of tissues covers body surfaces‚ lines body cavities‚ forms the internal and external linings of many organs and constitutes most gland tissue? Epithelial By definition‚ adipose tissue is a type of connective tissue that contains predominately adipocytes. Identify the functions of adipose tissue. * Energy storage * Thermal insilation Choose the locations where adipose tissue is found
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TASK 2: (Outcome 1) (P2) Complete the diagrams and examples in the table below Tissue type Diagram and example of where found Cuboidal Epithelium The simple cuboidal epithelium secrets and reabsorbs water and small molecules‚ it can be found in the kidneys tubules. The stratified epithelium secrets water and ions. Columnar Epithelium The simple columnar absorbs nutrients and produces mucus. It can be found in digestive organs e.g. small intestine. The stratified columnar secrets mucus
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of structural organization and give examples of each. Chemical - atoms and molecules Cellular - molecules combine to form cells(basic structure and unit of an organism) Tissue - group of cells and materials (epithelial tissue‚ connective tissue‚ muscle tissue‚ and nervous tissue) Organ - composed of 2 or more types of tissues(skin‚ bones‚ stomach‚ heart‚ liver‚ lungs‚ and brain) System - consists of related organs that have common function(digestive system) Organism - a single living person
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synthesize the pigment melanin. Melanin protects the cell nucleus from the destructive effects of UV radiation Langerhans cells: arise from the bone marrow and migrate to the epidermis and other areas of the body containing stratified squamous epithelial tissue. Merkel cells: present in small numbers at the epidermal-dermal junction. Associated with a disc-like ending of a sensory nerve fiber‚ called a Merkel disc‚ which functions as a sensory receptor. Layers of the Epidermis: In thick skin (which covers
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primary tissue types and give the general characteristics and functions of each one. 2. How are epithelial tissues classified? 3. How does the type of epithelial tissue relate to its function? Give at least 1 example of where you would find each type of epithelial tissue. 4. Differentiate between exocrine and endocrine glands. Give an example of each. 5. What is the difference between apocrine‚ merocrine and holocrine glands? Which is the most common? 6. Describe connective tissue’s
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BIOS251 Week 3 Lab Exercise Tissues and Integumentary System 1. Describe the characteristics of epithelial tissue. (5 points) The most basic characteristics of the epithelial tissue is that it covers the surfaces of the body whether internal or external. It acts as a protective covering or boundary for such surfaces‚ including the outer layer of the skin‚ as well as the inner surface of the hallow organs like the stomach‚ colon‚ and blood vessels. Other characteristics is that it is made
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by Ma Cho Cho Lwin & Ma Eaindra Win TISSUES Tissues are group of cells that work together to perform a particular functions. There are four main type of tissues. They are: I. Epithelial tissues II. Connective tissues III. Muscle tissues IV. Nervous tissues EPITHELIAL TISSUES Simple epithelial tissues This tissue has only one cell layer. Compound epithelial tissues This tissue has more than one cell layers. EPITHELIAL TISSUES Epithelial tissues cover the whole surface of the body
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identify the structure of various types of animal tissues • To explain the organization of the tissues HYPOTHESIS • Various type of tissues can be identified their function by observing the shape and structure of the cells because different tissues have different functions. • The usage of higher magnification of objective lens produces a better image. INTRODUCTION Internal structure of animal is made up cells. Cells aggregate and forms tissue. Animal tissues are classified into four types on the basis
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