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Published byFelicia Stanley Modified over 9 years ago
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Tissues of the Body
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Cells combine to form tissues, and tissues combine to form organs. There are four primary types of tissues –Epithelial tissue –Connective tissue –Muscle tissue –Nervous tissue
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Found in the outer cover of body and in the inner cavities. Has Two Types: Membranous epithelia: form the coverings or linings of organs. Glandular epithelia: form exocrine and endocrine glands. Epithelial Tissue
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Has five functions: Secretion Absorption Excretion Protection Sensation Epithelial Tissue
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Epithelium-Human Stomach
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Glandular Epithelia Epithelial tissues illustrate a basic biological principle: that structure closely correlates with function
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Figure 4.4
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Binds the cells and organs of the body together –All connective tissues consist of two basic components: cells and extracellular fibers Two types of connective tissue are: –Fibrous Connective tissue. –Specialized Connective tissue Section 4-1 Connective Tissue
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An important structural component of organs – Consists of two types: Dense connective tissue Loose connective tissue Connective Tissue
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Perform specific functions essential to homeostasis The body contains three types of specialized connective tissue: Cartilage Bone Blood Specialized Connective Tissues
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Cartilage – Consists of specialized cells embedded in a matrix of extracellular fibers and other extracellular material Blood –Contains blood cells, platelets, plasma
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Osseous Tissue Bone –Consists of bone cells (osteocytes) and a calcified cartilage matrix Two types of bone tissue exist: spongy and compact
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Consists of specialized cells that contract when stimulated The body has three types of muscle tissue: Skeletal (voluntary, striated) Cardiac (involuntary, striated) Smooth (involuntary. non-striated) Muscular Tissue
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Muscular TissueMuscular Tissue
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Nervous Tissue Contains specialized cells that conduct impulses Conducting cells, called neurons, transmit impulses from one region of the body to another. Nonconducting cells, neuroglia, are a type of nervous system connective tissue.
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Nervous Tissue
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Organ Systems Tissues combine to form organs. – Organs are discrete structures that have evolved to perform specific functions – Most organs do not function alone, they are part of a group of cooperative organs, called an organ system.
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Please refer to Sylvia Mader HUMAN BIOLOGY 12 th Edition Dr Awad Widaa
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THE END
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