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Encyclopedia > Biological tissue

Biological tissue is a collection of interconnected cells that perform a similar function within an organism. Drawing of the structure of cork as it appeared under the microscope to Robert Hook from Micrographia which is the origin of the word cell. Cells in culture, stained for keratin (red) and DNA (green). ...


The study of tissue is known as histology, or, in connection with disease, histopathology. A thin section of lung tissue stained with hematoxylin and eosin. ... Histopathology is a field of pathology which specialises in the histologic study of diseased tissue. ...


The classical tools for studying the tissues are the wax block, the tissue stain, and the optical microscope, though developments in electron microscopy, immunofluorescence, and frozen sections have all added to the sum of knowledge in the last couple of decades. A microscope (Greek: (micron) = small + (skopein) = to look at) is an instrument for viewing objects that are too small to be seen by the naked or unaided eye. ... The electron microscope is a microscope that can magnify very small details with high resolving power due to the use of electrons rather than light to scatter off material, magnifying at levels up to 500,000 times. ... Immunofluorescence is the labeling of antibodies or antigens with fluorescent dyes. ...


With these tools, the classical appearances of the tissues can be examined in health and disease, enabling considerable refinement of clinical diagnosis and prognosis.

Contents

Animal tissues

There are five basic types of tissue in the body of all animals, including the human body and lower multicellular organisms such as insects. These compose all the organs, structures and other contents. Phyla Subregnum Parazoa Porifera Subregnum Eumetazoa Placozoa Orthonectida Rhombozoa Radiata (unranked) Ctenophora Cnidaria Bilateria (unranked) Acoelomorpha Myxozoa Superphylum Deuterostomia Chordata Hemichordata Echinodermata Chaetognatha Xenoturbellida Superphylum Ecdysozoa Kinorhyncha Loricifera Priapulida Nematoda Nematomorpha Onychophora Tardigrada Arthropoda Superphylum Platyzoa Platyhelminthes Gastrotricha Rotifera Acanthocephala Gnathostomulida Micrognathozoa Cycliophora Superphylum Lophotrochozoa Sipuncula Nemertea Phoronida Bryozoa Entoprocta... Multicellular organisms are those organisms containing more than one cell, and having differentiated cells that perform specialized functions. ... Orders See taxonomy Insects are invertebrates that are taxonomically referred to as the class Insecta. ...

  • Epithelium - Tissues composed of layers of cells that cover organ surfaces such as surface of the skin and inner lining of digestive tract: the tissues that serve for protection, secretion, and absorption.
  • Connective tissue - As the name suggests, connective tissue holds everything together. Some people consider Blood a connective tissue. These tissues contain extensive extracellular matrix.
  • Muscle tissue - Muscle cells contain contractile filaments that move past each other and change the size of the cell. Muscle tissue also is separated into three distinct categories: visceral or smooth muscle, which is found in the inner linings of organs; skeletal muscle, which is found attached to bone in order for mobility to take place; and cardiac muscle which is found in the heart.
  • Nervous tissue - Cells forming the brain, spinal cord and peripheral nervous system.
  • Areolar connective tissue - A pliable, mesh-like tissue with a fluid matrix that functions to cushion and protect body organs.

Types of epithelium This article discusses the epithelium, an animal anatomical structure. ... In the human body there are four types of tissue: (1) Epithelial, (2) Connective, (3) Muscle, and (4) Nervous Tissue. ... Human blood smear: a - erythrocytes; b - neutrophil; c - eosinophil; d - lymphocyte. ... In biology, extracellular matrix (ECM) is any material part of a tissue that is not part of any cell. ... It has been suggested that this article or section be merged into Muscular system. ... Smooth muscle of the aorta. ... A top-down view of skeletal muscle Skeletal muscle is a type of striated muscle, attached to the skeleton. ... Cardiac muscle is a type of involuntary mononucleated, or uninucleated, striated muscle found exclusively within the heart. ... Nervous tissue is the fourth major class of vertebrate tissue. ... In animals, the brain, or encephalon (Greek for in the head), is the control center of the central nervous system. ... The Spinal cord nested in the vertebral column. ... The peripheral nervous system or PNS, is part of the nervous system, and consists of the nerves and neurons that reside or extend outside the central nervous system (the brain and spinal cord) to serve the limbs and organs, for example. ... Gel-like matrix with all three fiber types Areoloar tissue is the most common connnective tissue type and can be found in the skin as well as in places that connect epithelium to other tissues. ... A fluid is defined as a substance that continually deforms (flows) under an applied shear stress regardless of the magnitude of the applied stress. ... In biology, an organ (Latin: organum, instrument, tool) is a group of tissues that perform a specific function or group of functions. ...

Plant tissues

Examples of tissue in other multicellular organisms are vascular tissue in plants, such as xylem and phloem. Plant tissues are categorized broadly into three tissue systems: the epidermis, the ground tissue, and the vascular tissue. Together they are often referred to as biomass. Multicellular organisms are those organisms containing more than one cell, and having differentiated cells that perform specialized functions. ... Vascular is an adjective for the word vessel and refers to tube-like structures. ... Divisions Green algae Chlorophyta Charophyta Land plants (embryophytes) Non-vascular plants (bryophytes) Marchantiophyta - liverworts Anthocerotophyta - hornworts Bryophyta - mosses Vascular plants (tracheophytes) †Rhyniophyta - rhyniophytes †Zosterophyllophyta - zosterophylls Lycopodiophyta - clubmosses †Trimerophytophyta - trimerophytes Equisetophyta - horsetails Pteridophyta - true ferns Psilotophyta - whisk ferns Ophioglossophyta - adderstongues Seed plants (spermatophytes) †Pteridospermatophyta - seed ferns Pinophyta - conifers Cycadophyta - cycads Ginkgophyta... In vascular plants, xylem is one of the two types of transport tissue in plants, phloem being the other one. ... In vascular plants, phloem is the living tissue that carries organic nutrients, particularly sucrose, to all parts of the plant where needed. ... The epidermis is the outer multi-layered group of cells covering the leaf and young tissues of a plant. ... The types of ground tissue found in plants develops from ground tissue meristem and consists of three simple tissues: Parenchyma (have retained their protoplasm) Collenchyma (have retained their protoplasm) Sclerenchyma (have lost their protoplasm in mature stage, i. ... Cross section of celery stalk, showing vascular bundles, which include both phloem and xylem. ... |0. ...

The epidermis is the outer multi-layered group of cells covering the leaf and young tissues of a plant. ... The leaves of a Beech tree A leaf with laminar structure and pinnate venation In botany, a leaf is an above-ground plant organ specialized for photosynthesis. ... Cross section of celery stalk, showing vascular bundles, which include both phloem and xylem. ... In vascular plants, xylem is one of the two types of transport tissue in plants, phloem being the other one. ... In vascular plants, phloem is the living tissue that carries organic nutrients, particularly sucrose, to all parts of the plant where needed. ... The types of ground tissue found in plants develops from ground tissue meristem and consists of three simple tissues: Parenchyma (have retained their protoplasm) Collenchyma (have retained their protoplasm) Sclerenchyma (have lost their protoplasm in mature stage, i. ... Embryonic stem cells differentiate into cells in various body organs. ... The leaf is the primary site of photosynthesis in plants. ...

See also

Embryonic stem cells differentiate into cells in various body organs. ... a Tissue MicroArray Block Tissue microarrays (also TMAs) consist of paraffin blocks in which up to 1000 separate tissue cores are assembled in array fashion to allow simultaneous histological analysis. ...

References

  • Raven, Peter H., Evert, Ray F., & Eichhorn, Susan E. (1986). Biology of Plants (4th ed.). New York: Worth Publishers. ISBN 0-87901-315-X.


Biological tissue
v  d  e
Animals : Epithelium - Connective - Muscular - Nervous
Plants : Dermal - Vascular - Ground

For futher information pls call Michael John on +2348032905714. Phyla Subregnum Parazoa Porifera Subregnum Eumetazoa Placozoa Orthonectida Rhombozoa Radiata (unranked) Ctenophora Cnidaria Bilateria (unranked) Acoelomorpha Myxozoa Superphylum Deuterostomia Chordata Hemichordata Echinodermata Chaetognatha Xenoturbellida Superphylum Ecdysozoa Kinorhyncha Loricifera Priapulida Nematoda Nematomorpha Onychophora Tardigrada Arthropoda Superphylum Platyzoa Platyhelminthes Gastrotricha Rotifera Acanthocephala Gnathostomulida Micrognathozoa Cycliophora Superphylum Lophotrochozoa Sipuncula Nemertea Phoronida Bryozoa Entoprocta... Types of epithelium This article discusses the epithelium, an animal anatomical structure. ... In the human body there are four types of tissue: (1) Epithelial, (2) Connective, (3) Muscle, and (4) Nervous Tissue. ... It has been suggested that this article or section be merged into Muscular system. ... Nervous tissue is the fourth major class of vertebrate tissue. ... Divisions Green algae Chlorophyta Charophyta Land plants (embryophytes) Non-vascular plants (bryophytes) Marchantiophyta - liverworts Anthocerotophyta - hornworts Bryophyta - mosses Vascular plants (tracheophytes) †Rhyniophyta - rhyniophytes †Zosterophyllophyta - zosterophylls Lycopodiophyta - clubmosses †Trimerophytophyta - trimerophytes Equisetophyta - horsetails Pteridophyta - true ferns Psilotophyta - whisk ferns Ophioglossophyta - adderstongues Seed plants (spermatophytes) †Pteridospermatophyta - seed ferns Pinophyta - conifers Cycadophyta - cycads Ginkgophyta... The epidermis is the outer multi-layered group of cells covering the leaf and young tissues of a plant. ... Cross section of celery stalk, showing vascular bundles, which include both phloem and xylem. ... The types of ground tissue found in plants develops from ground tissue meristem and consists of three simple tissues: Parenchyma (have retained their protoplasm) Collenchyma (have retained their protoplasm) Sclerenchyma (have lost their protoplasm in mature stage, i. ...


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  Results from FactBites:
 
Tissue Culture Microscopes - Microscope For Cellular Tissue Cultures (0 words)
Tissue Culture Microscopes.COM is a major supplier of microscopes for biological applications utilizing living tissue cells in petri dishes and flasks.
Tissue culture specimens are often grown in petri dishes and need to be viewed from the bottom of the dish.
Applications for tissue culture microscopes may be as varied as cellular biology, molecular biology, medical diagnostics, university and college level biology classroom experiments, microbiological study, environmental research, and medical research.
Biological tissue (586 words)
Biological tissue is a collection of interconnected cells that perform a similar function within an organism.
The study of tissue is known as histology, or, in connection with disease, histopathology.
Epithelium —; In zootomy, epithelium is a tissue composed of a layer of cells.
  More results at FactBites »

 
 

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