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Tissues in Biological Definition

Biological tissue

... that perform a similar function. The study of tissues is known as histology , or, in connection with ... . The classical tools for studying the tissues are the wax block, the tissue stain, and the ... these tools, the classical appearances of the tissues can be examined in health and disease, enabling ...

Biomechanics

... to biomechanics. For example, the various tissues within the body, such as skin, bone, and arteries ... of the physiological behavior of living tissues would allow researchers to advance the field of ... It is often appropriate to model living tissues as continuous media. For example, at the tissue ...

Blood

... , glucose ) and constitutional elements to tissues and to remove waste products (such as carbon ... , lipids , hormones ) to be transported between tissues and organs. Problems with blood composition or ... life throughout the body. It also supplies the tissues with nutrients, removes waste products, and ...

Cancer

... and the ability of these cells to invade other tissues and spread to other areas of the body where the ... physiologic process that occurs in almost all tissues and under many circumstances, such as response to ... have been shed as a part of their lifecycle (in tissues such as skin or the mucous membranes of the ...

Morphogenesis

... which give rise to the characteristic forms of tissues , organs and overall body anatomy . In the ... to a post- gastrulation embryo with structured tissues and organs is controlled by the genetic ... specific cell adhesion proteins and form new tissues and organs. Several examples that illustrate the ...

Immunology

... vessels , lymph nodes and secondary lymphatic tissues such as tonsils and adenoids ) and skin . The ... However some lymph nodes, and secondary lymphatic tissues can be surgically excised for examination while ... organ, but imbedded or circulating in various tissues located about the body. Classical ...

Morphogenesis

... which give rise to the characteristic forms of tissues , organs and overall body anatomy . In the ... to a post- gastrulation embryo with structured tissues and organs is controlled by the genetic ... specific cell adhesion proteins and form new tissues and organs. Several examples that illustrate the ...

Magnetic resonance imaging

... or other physiological alterations of living tissues and is a commonly used form of medical imaging . ... a T2 weighted scan, water and fluid-containing tissues are bright (most modern T2 sequences are actually ... in which free water now is dark, but edematous tissues remain bright. This sequence, in particular, is ...

Animal

... (Phylum Porifera), animals have bodies differentiated into separate tissues . These include muscles , which are able to contract and control ... body is triploblastic, i.e. all three germ layers are well-developed, and tissues form distinct organs. The digestive chamber has two openings, a mouth and ...

Apoptosis

... cell proliferation, combined with selective apoptosis, sculpts developing tissues in vertebrates. During vertebrate embryo development, structures called ... in many animals; it is the usual method of eliminating organs and tissues that are useful only during embryonic or larval ... [15] . A little ...

Biology

... to grow better and thus remove more carbon dioxide from the atmosphere. tissues and organs can also maintain homeostasis. Interactions: groups and ... and " morphogenesis ," which is the process that gives rise to tissues , organs and anatomy . Model organisms for developmental biology ...

Botany

... , genetic and biochemical level through to organelles , cells , tissues , organs and the biodiversity of whole plants. At the top end of this ... of the co-evolution of plants and humans External links Plant tissues , plant growth and the plant cell from Kimball's Biology Pages ...

Developmental biology

... and " morphogenesis ," which is the process that gives rise to tissues , organs and anatomy . Embryology is a subfield, the study of ... may shield information on how to specialize stem cells to specific tissues and organs, which could lead to the specific cloning of organs for ...

Diabetes mellitus

... type 1, the first recognized form), or decreased sensitivity of body tissues to insulin (diabetes mellitus type 2, the more common form). The former ... the blood, as occurs after a meal. Insulin makes it possible for most body tissues to remove glucose from the blood for use as fuel, for conversion to other ...

Gene therapy

... therapy is the insertion of genes into an individual's cells and tissues to treat a disease , and hereditary diseases in particular. Gene ... or in preparation, mainly trying to treat muscle and eye diseases, the two tissues where the virus seems particularly useful. Problems and ethics ...

Lysozyme

... in the lysozyme gene, which leads to accumulated lysozyme in several tissues (). History Alexander Fleming (1881-1955), who discovered ... in 1922 (Fleming A. On a remarkable bacteriolytic element found in tissues and secretions. Proc Roy Soc Ser B 1922;93:306-17). ...

Animal

... (Phylum Porifera), animals have bodies differentiated into separate tissues . These include muscles , which are able to contract and control ... body is triploblastic, i.e. all three germ layers are well-developed, and tissues form distinct organs. The digestive chamber has two openings, a mouth and ...

Plant

... bryophytes. These include a cuticle resistant to desiccation, and vascular tissues which transport water throughout the organism. In many the sporophyte acts ... and forms that are simple collections of cells, without differentiated tissues . Many can move about, and some have even lost their ability to ...

Plant

... bryophytes. These include a cuticle resistant to desiccation, and vascular tissues which transport water throughout the organism. In many the sporophyte acts ... and forms that are simple collections of cells, without differentiated tissues . Many can move about, and some have even lost their ability to ...

Thermoregulation

... not by any particular substance or in any one place, but by the tissues at large. Wherever destructive metabolism ( catabolism ) is going on, heat ... hand, too high a temperature hurries on the metabolism of the various tissues at such a rate that their capital is soon exhausted. Blood that is too ...

Tumor

... cancer . Cancer has the potential to invade and destroy neighboring tissues and create metastases . Benign tumors do not invade neighboring tissues and do not seed metastases, but may locally grow to great size. They ...

Xylem

... Together with the phloem , the xylem is one of the two types of transport tissues in plants. The cell walls of xylem cells derive most of their strength ... , xylem is laid down in multiple phases. Primary xylem is one of the tissues left behind by the apical meristem . Secondary xylem is laid down by ...

Anatomy

... gland Mammary gland Salivary gland Thyroid gland Parathyroid gland Adrenal gland Pituitary gland Pineal gland tissues : Connective tissue Endothelial tissue Epithelial tissue Glandular tissue Lymphoid tissue Externally visible parts of the ...

Barr body

... or the inactive Z in a male. This happens early in embryonic development at random in mammals , except in marsupials and in some extra-embryonic tissues of some placental mammals, in which the father's X chromosome is always deactivated. The inactivation state of chromosomes is passed on to daughter ...

Biophysics

... that apply models and experimental techniques derived from physics (e.g. electromagnetism and quantum mechanics ) to larger systems such as tissues or organs (hence the inclusion of basic neuroscience as well as more applied techniques such as fMRI ). Biophysics often does not have ...

Embryo

... or a plant in its earliest stage of development . Plants : In botany , a plant embryo is part of a seed , consisting of precursor tissues for the leaves, stem (see hypocotyl ), and root (see radicle ), as well as one or more cotyledons . Once the embryo begins to germinate ...

Electrophysiology

... Electrophysiology is the science and branch of physiology that pertains to the flow of ions in biological tissues and, in particular, to the electrical recording techniques that enable the measurement of this flow and the potential changes related to them. At ...

Gene

... organisms they control the development of the individual from the fertilized egg and the day-to-day functions of the cells that make up tissues and organs . The instrumental roles of their protein products range from mechanical support of the cell structure to the transportation and ...

Glycolipid

... as a recognition site for specific chemicals as well as helping to maintain the stability of the membrane and attaching cells to one another to form tissues . ...

Photosynthesis

... chloroplasts . Although all green parts of a plant have chloroplasts, most of the energy is produced in the leaves . The cells in the interior tissues of a leaf, called the mesophyll , contain about half a million chloroplasts for every square millimetre of leaf. The surface of the leaf is ...

Human Genome Project

... relationships to other human genes, or to genes in mice or yeast or fruitflies, possible detrimental mutations, interactions with other genes, body tissues in which this gene is activated, diseases associated with this ... the list of datatypes is long, one reason why bioinformatics is so ...

Immune system

... The immune system is the collection of organs and tissues involved in the adaptive defense of a body against foreign biological material. It may be broken down into the adaptive immune system (only found in ...

Insulin

... glucose uptake by regulating the number and operation of protein molecules in the cell membrane which transport glucose into the cell. Two types of tissues are most strongly influenced by insulin as far as the stimulation of glucose uptake is concerned: muscle cells ( myocytes ) and fat cells ( ...

Lichen

... are small groups of algal cells surrounded by fungal filaments that form in cavities called soralia, which open when the lichen dries or surrounding tissues die and release the soredia to be dispersed by wind. Another form of diaspore are isidia, elongated outgrowths from the thallus that break off for ...

Mathematical biology

... in various universities: Modelling of arterial disease [1] Modelling of neurons and carcinogenesis [2] Mechanics of biological tissues [3] Theoretical enzymology and enzyme kinetics [4] Cancer modelling and simulation [5] Swarming behaviour [6] Multi-scale ...

Marfan syndrome

... therefore not all persons carrying the mutation develop the disease. Without the structural support provided by fibrillin, many connective tissues are weakened, which can have severe consequences on support and stability. A related disease has been found in mice , and it is hoped that the study ...

Neuron

... Classes There are three classes of neurons: afferent neurons, efferent neurons, and interneurons. Afferent neurons convey information from tissues and organs into the central nervous system . Efferent neurons transmit signals from the central nervous system to the effector cells . ...

Photosynthesis

... chloroplasts . Although all green parts of a plant have chloroplasts, most of the energy is produced in the leaves . The cells in the interior tissues of a leaf, called the mesophyll , contain about half a million chloroplasts for every square millimetre of leaf. The surface of the leaf is ...

Proteomics

... that protein diversity cannot be fully characterized by gene expression analysis alone, making proteomics a useful tool for characterizing cells and tissues of interest. To catalog all human proteins and ascertain their functions and interactions presents a daunting challenge for scientists. An ...

Signal transduction

... affecting either the emitting cell or cells immediately adjacent. Hormones Most of the molecules that enable signalling between the cells or tissues within an individual animal or plant are known as " hormones ." Hormone-initiated signal transduction takes the following steps: Biosynthesis ...
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