Anatomy Of The Human Body Organs Diagram – In a multicellular organism, an organ is a collection of tissues combined into a structural unit to serve a common function.

In the hierarchy of life, an organ is located between a tissue and an organ system. Tissues are formed from cells of the same type to act together in function. Tissues of different types combine to form an organ that has a specific function. The intestinal wall for example is formed by epithelial tissue and smooth muscle tissue.

Anatomy Of The Human Body Organs Diagram

Two or more organs that work together in the execution of a specific body function form an organ system, also called a biological system or body system.

Organs Of The Body Chart

The tissues of an organ can be broadly categorized as parchyma, the functional tissue, and stroma, the structural tissue with supporting, connective or ancillary functions. For example, the tissue of the gland that makes hormones is the parchyma, while the stroma includes the nerves that innervate the parchyma, the blood vessels that absorb and nourish it and carry away its metabolic waste , and the connective tissues that provide a suitable place for it to be located and anchored. The main tissues that make up an organ td have a common embryological origin, such as arising from the same germ layer. Organs exist in most multicellular organisms. In single-celled organisms such as members of the Eukaryotes, the functional analogue of an organ is known as an organelle. In plants, there are three main organs.

Abdominal organs can be classified as solid organs, or hollow organs. The solid organs are the liver, pancreas, spleen, kidneys and adrenal glands. The hollow organs of the abdomen are the stomach, intestines, gall bladder, bladder and rectum.

The number of organs in any organism depends on the definition used. With one widely adopted definition, 79 organs have been identified in the human body.

Except for placozoans, multicellular animals including humans have a variety of organ systems. These specific systems are widely studied in human anatomy. The functions of these organ systems often share significant overlap. For example, the nervous and endocrine systems both operate through a shared organ, the hypothalamus. For this reason, the two systems are combined and studied as the neurodocrine system. The same is true for the musculoskeletal system because of the relationship between the muscular and skeletal systems.

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In the study of anatomy, viscera (singular viscus) refers to the internal organs of the abdominal, thoracic and pelvic cavities.

Abdominal organs can be classified as solid organs, or hollow organs. The solid organs include the liver, pancreas, spleen, kidneys and adrenal glands. The hollow organs include the stomach, intestines, gall bladder, bladder and rectum.

The term “visceral” is contrasted with the term “parietal”, which means “of or relating to the wall of a body part, organ or cavity”

Both terms are often used to describe a membrane or piece of connective tissue, referring to opposite sides.

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A lineage relationship of major animals with an indication of how long ago these animals had a common ancestor. On the left, important organs are shown, which allows us to determine how long ago they may have evolved.

The level of the organs of organization in animals can be discovered first in the flatworms and the more derived phyla, namely the bilaterians. The less advanced taxa (ie Placozoa, Porifera, Ctophora and Cnidaria) do not show consolidation of their tissues into organs.

More complex animals are composed of different organs, which have evolved over time. For example, the liver and heart evolved in chordates about 550-500 million years ago, while the gut and brain are even older, originating in the ancestor of vertebrates, insects, molluscs, and worms about 700-650 million years ago.

Because of the ancient origin of most vertebrate organs, researchers looked for model systems, where the organs evolved more correctly, and ideally evolved several times independently. An outstanding model for this type of research is the placta, which evolved more than 100 times indepdtly in vertebrates, evolved relatively correctly in some females, and exists in intermediate forms in extant taxa.

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Studies on the evolution of placta have identified a variety of genetic and physiological processes that contribute to the origin and evolution of organs, these include the reuse of existing animal tissues, the acquisition of new functional properties from these tissues, and new interactions. of distinct tissue types.

The flower is the reproductive organ of the angiosperm. This Hibiscus flower is hermaphrodite, and contains a stamen and pistils.

The study of plant organs is covered in plant morphology. Plant organs can be divided into vegetative and reproductive. Vegetative plant organs include roots, stems, and leaves. The reproductive organs are variable. In flowering plants, they are repressed from the flower, seed and fruit.

In conifers, the organ that carries the reproductive structures is called a cone. In other divisions (phyla) of plants, the reproductive organs are called strobili, in Lycopodiophyta, or simply gametophores in mosses. Common organ system designations in plants include shoot and root differentiation. All the above-ground parts of the plant (in non-epiphytes), including the functionally distinct leaf and flower organs, can be classified together as the shoot organ system.

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The vegetative organs are essential to maintain the life of a plant. While there may be 11 organ systems in animals, there are far fewer in plants, where some perform vital functions, such as photosynthesis, while reproductive organs are essential in reproduction. However, if there is asexual vegetative reproduction, the vegetative organs are the ones that create the new generation of plants (see clonal colony).

Many societies have a system for organ donation, in which an organ from a living or deceased donor is transplanted into a person with a failing organ. Transplantation of larger solid organs often requires immunosuppression to prevent organ rejection or graft-versus-host disease.

Organ transplants began to take place as scientists learned more about the anatomy of organs. These came later in time as the procedures were often dangerous and difficult.

Both the source and the method of obtaining the organ for transplantation are major ethical issues to be considered, and because organs as resources for transplantation are increasingly limited by the demand for them, various concepts of ‘justice, including distributive justice, are developed in ethical analysis. This situation will continue as long as transplantation depends on organ donors rather than on technological innovation, testing and industrial manufacturing.

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The glish word “organ” dates back to the twelfth century and refers to any musical instrument. By the end of the 14th century, the meaning of the musical term had narrowed to refer specifically to the keyboard-based instrument. At the same time, a second meaning arose, referring to “a part of the body adapted to a certain function”.

Plant organs are made up of tissue made up of different types of tissue. The three types of tissue are ground, vascular, and dermal.

The adjective visceral, also splanchnic, is used for anything that belongs to the internal organs. Historically, the viscera of animals were examined by Roman pagan priests as haruspices or omens in order to tell the future from their shape, dimsions or other factors.

Aristotle used the word frequently in his philosophy, both to describe plant or animal organs (eg the roots of a tree, the heart or liver of an animal), and to describe more abstract “parts” of an interconnected whole (eg logical works, in their totality, are called the Organon).

Human Anatomy: Explained: The Basic Anatomy Of The Human Body

Some alchemists (eg Paracelsus) adopted the Hermetic assignment of the Qabalah between the six vital organs and the six classical planets as follows:

Traditional Chinese medicine recognizes elevated organs, associated with the five traditional Chinese elements and with yin and yang, as follows:

The Chinese associated the five elements with the five planets (Jupiter, Mars, Vus, Saturn and Mercury) similar to the way the classical planets were associated with different metals. The yin and yang distinction approximates the modern concept of solid and hollow organs.iStockHuman Anatomy Female Body And Organs Diagram Stock Illustration – Download Image Now – Abdomen, Diagram, Human Heart

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