8 Major Organs Of The Human Body – In a multicellular organism, an organ is a collection of tissues joined together into a structural unit to perform a common function.

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

8 Major Organs Of The Human Body

Two or more organs that work together to perform a specific bodily function form an organ system, also called a biological system or body system.

Give The Functions Of The Following Major Organs Of The Human Body.mali==reporttama==brainliest And Follow✨​

The tissues of an organ can be broadly categorized as parchyma, the functional tissue, and stroma, the structural tissue with supportive, connective, or supporting functions. For example, the tissue of the gland that produces hormones is the parchyma, while the stroma includes the nerves that innervate the parchyma, the blood vessels that oxygenate and nourish it and remove metabolic wastes, and the connective tissues that provide a suitable place for the parchyma. it must be situated and anchored. The main tissues that make up an organ may have a common embryological origin, for example 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.

The number of organs in each organism depends on the definition used. According to a generally accepted definition, 79 organs have been identified in the human body.

With the exception of placozoans, multicellular animals, including humans, have a variety of organ systems. These specific systems are extensively studied in human anatomy. The functions of these organ systems often overlap significantly. For example, the nervous system and the learning system both work through a common organ, the hypothalamus. For this reason, the two systems are combined and studied as the neurodocrine system. The same applies to the musculoskeletal system because of the relationship between the musculoskeletal system.

The 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, gallbladder, bladder and rectum.

Human Digestive System

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

The two terms are often used when describing a membrane or piece of connective tissue, referring to the opposite sides.

Relationship between major animal lineages with indication of how long ago these animals shared a common ancestor. Major organs are shown on the left, allowing us to determine how long ago they may have evolved.

The organ level of organization in animals can be detected for the first time in flatworms and the more derived phyla, that is, the bilaterians. The less advanced taxa (i.e. Placozoa, Porifera, Ctophora and Cnidaria) do not show consolidation of their tissues into organs.

Human Body Cavities

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

Given the ancient origins of most vertebrate organs, researchers have sought model systems in which organs have developed more rectly, and ideally evolved independently several times. An excellent model for this type of research is the placta, which has evolved independently more than 100 times in vertebrates, has evolved relatively straight in some lineages, and exists in intermediate forms in extant taxa.

Studies on placta evolution have identified a variety of getic and physiological processes that contribute to the origin and evolution of organs, including the repurposing of existing animal tissues, the acquisition of new functional properties by these tissues, and new interactions. of different tissue types.

The flower is the reproductive organ of the angiosperm. This hibiscus flower is hermaphroditic and contains stem and pistils.

Solution: Anatomy And Physiology Study Guide, Exam Questions And Answers

The study of plant organs falls under plant morphology. Organs of plants 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 represented by the flower, seed and fruit.

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

The vegetative organs are essential for maintaining the life of a plant. Although there may be eleven organ systems in animals, there are far fewer in plants. Some of them perform vital functions, such as photosynthesis, while the reproductive organs are essential for reproduction. However, if there is asexual vegetative reproduction, it is the vegetative organs that create the new generation of plants (see clonal colony).

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

Organs And Structures Of The Respiratory System

Organ transplants began to occur as scientists learned more about the anatomy of organs. These came later because the procedures were often dangerous and difficult.

Both the source and method of obtaining the organ to be transplanted are important ethical issues to consider, and because organs as resources for transplantation are always more limited than the demand for them, various notions of justice are developed in ethical analysis, including distributive justice . This situation will persist as long as transplantation relies on organ donors rather than technological innovation, testing and industrial production.

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

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

Skin Information And Facts

The adjective visceral, also splanchnic, is used for everything related to the internal organs. Historically, the intestines of animals were examined by Roman pagan priests such as the haruspices or the augurs to predict the future based on their shape, size, or other factors.

Aristotle used the word frequently in his philosophy, both to describe the organs of plants or animals (for example, the roots of a tree, the heart or liver of an animal), and to describe more abstract ‘parts’ of an interconnected whole. describe (for example, his logical works, as a whole, are called the Organon).

Some alchemists (e.g. Paracelsus) have adopted the Hermetic Kabbalah allocation between the seven vital organs and the seven classical planets as follows:

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

Human Organs Labelled Stock Illustrations

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 various metals. The distinction between yin and yang approximates the modern idea of ​​solid and hollow organs. An organ is a group of tissues that work together for the overall function of the organ, and an organ system is a group of organs that work together to perform a specific function. . The human organism consists of eleven organ systems. They are the integumentary system, skeletal system, muscular system, nervous system, endocrine system, cardiovascular system, lymphatic system, respiratory system, digestive system, urinary system and reproductive system (female and male).

Refer to the figures (PageIndex) and (PageIndex) below to determine the organs and functions of the eleven organ systems. Note that some organs perform activities that directly participate in the functioning of more than one system. For example, the testes and ovaries both have an endocrine function (producing sex hormones) and a reproductive function (producing cells called gametes that will fuse to make a new organism). Another example is the pancreas, which has an endocrine function (producing hormones) and a digestive function (producing juices that aid digestion).

All organ systems must work correctly for an organism, such as humans, to maintain homeostasis and health. Because all organ systems are ultimately composed of ions and molecules, an understanding of the chemical and cellular organization of the body, as discussed in this course, is necessary to successfully master human anatomy and physiology.

Figure (PageIndex) Organs and function of the integumentary system, skeletal system, muscular system, nervous system, endocrine system, cardiovascular system

Five Sense Organs, Their Functions, And How To Keep Them Healthy

Figure (PageIndex) Organs and function of the lymphatic system, respiratory system, digestive system, urinary system, and female and male reproductive systems. The Montessori framework is based on a child-centered educational approach that values ​​promoting the child’s strengths, independence and well-being. and natural curiosity. It is an approach that recognizes that children have an innate hunger for knowledge and inquiry-based learning through practical experiences,

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