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Tissue Type Function Location Description Areolar serves as a type of universal packing material between other tissues the most widely distributed in the body; separates muscles, wraps small blood vessels and nerves, surrounds glands, and forms the subcutaneous tissue; present in all mucous membranes loose connective tissue that consists of a meshwork of collagen, elastic tissue, and reticular fibres - with many connective tissue cells in between the meshwork of fibres. Adipose acts as an insulating layer has a protective function, providing mechanical protection ("padding") and support around some of the major organs means of energy storage located beneath the the skin, inspaces between muscles, around kidneys, behind eyeballs, in certain abdominal membranes, on surface of the heart, and around certain joints a loose fibrous connective tissue that is packed with many fat cells (called "adipocytes") Reticular forms the stroma, or internal supporting framework of several organs lymph nodes, spleen, bone marrow, and liver delicate network of interwoven reticular fibers cells-some are fibroblastlike, others differentiate into phagocytic macrophages Dense Regular withstands great tensil stress when pulling force is applied in one direction Strength and resistance : primarily parallel collagen fibers, a few elastin fibers, and major cell type is the fibroblast Dense Irregular able to withstand tension exerted in many directions; provides structural strength located in the tendons, most ligaments, and aponeuroses (sheet-like tendon that separates muscle from muscle); attaches muscle to bone or to muscles, bone to bone located in the dermis of the skin, submucosa of the digestive tract, fibrous capsules of organs and of joints, fascia (white sheets that surround the muscle : primarily irregularly arranged collagen fibers, some elastin, major cell type is fibroblast Picture Dense Elastic yields easily to a pulling force or pressure and then recoils to its original length located in the walls of the aorta, some parts of the trachea and bronchi, forms the vocal cords and the ligamenta flava connecting the vertebrae predominant fiber type is elastin Hyaline Cartilage important in the framework for development of most bones found on the ends of bones in many joints, in the soft part of the nose, and in supporting rings of the respiratory passages most common type; very fine collagenous fibers in its matrix and looks somewhat like white plastic shock absorber for structures subjected to pressure forms pads (intervertebral diswks) between the individual parts of the backbone, cushions bones in the knees and in the pelvic girdle very tough tissue containing many collagenous fibers Elastic Cartilage provides framework external ears and parts of the larynx dense network of elastic fibers; more flexible than hyaline cartilage Bone (Osseous Tissue) supports and protects, provides levers for muscles to act on, stores calcium and other minerals and fat, marrow inside bones is site for blood cell formation (hematopoiesis) Bones hard, calcified matrix containing many collagen fibers; very well vascularized; contains osteocytes (bone forming cells) Fibrocartilage Blood (Vascular Tissue) transport of respiratory gases, nutrients, wastes, and other substances contained within blood vessels Location red and white blood cells in a fluid matrix (plasma Tissue Type Function Description Skeletal Muscle voluntary control; functions in locomotion, manipulation of environment, facial expressions located in skeletal muscles attached to bones or occasionally to skin long, cylindrical, multinucleated cells with obvious striations Cardiac Muscle propels blood into circulation as it contracts; involuntary control located only in the walls of the hear branching, striated generally uninucleated cells that fit together tightly at unique junctions called intercalated discs Smooth Muscle propels substances or objects (foodstuff, urine, a baby) along internal passages; involuntary control mostly in the walls of hollow organs spindle-shaped cells with central nuclei; cells arranged closely to form sheets; no striations Picture Nervous Neurons Neuroglial Cells transmits electrical signals from sensory receptors and to effectors (muscles and glands) which control their activity; types of cells: the brain, spinal cord, and nerves that conduct impulses to and from the various body organs branching cells, cytoplasmic extensions, that may be quite long, extend from the nucleus-containing cell body generate and conduct nerve impulses over substantial distances Brain, spinal cord, throughout the body as the peripheral nervous system branching cells cytoplasmic extensions support, insulate, and protect the delicate neurons Brain, spinal cord, throughout the body as the peripheral nervous system nonconducting cells