This book covers eleven distinct organ systems in the human body (Figure \(\PageIndex{2}\) and Figure \(\PageIndex{3}\)). WebThe general scope of a project to determine the protein molecules that comprise the cells within the human body is framed. 
A cell is the smallest independently functioning unit of a living organism. They must all be able to work together. Your organ systems do not work alone in your body. Q. WebThe general scope of a project to determine the protein molecules that comprise the cells within the human body is framed. In humans, as in all organisms, cells perform all functions of life. We also acknowledge previous National Science Foundation support under grant numbers 1246120, 1525057, and 1413739. Higher levels of organization are built from lower levels. The LibreTexts libraries arePowered by NICE CXone Expertand are supported by the Department of Education Open Textbook Pilot Project, the UC Davis Office of the Provost, the UC Davis Library, the California State University Affordable Learning Solutions Program, and Merlot. Esophagus; stomach; small intestine; large intestine. By the end of this section, you will be able to: Before you begin to study the different structures and functions of the human body, it is helpful to consider its basic architecture; that is, how its smallest parts are assembled into larger structures. Chapter 1: An Introduction to the Human Body. We also acknowledge previous National Science Foundation support under grant numbers 1246120, 1525057, and 1413739. The smallest unit of any of these pure substances (elements) is an atom. In humans, as in all organisms, cells perform all functions of life. Each organ of the system does part of the larger job. Molecules are the chemical building blocks of all body structures. WebThe organization of the body often is discussed in terms of six distinct levels of increasing complexity, from the smallest chemical building blocks to a unique human organism. The smallest unit of any of these pure substances (elements) is an atom. User WebIt is convenient to consider the structures of the body in terms of fundamental levels of organization that increase in complexity: subatomic particles, atoms, molecules, organelles, cells, tissues, organs, organ systems, organisms and biosphere (Figure 1). A human cell typically consists of flexible membranes that enclose cytoplasm, a water-based cellular fluid together with a variety of tiny functioning units called organelles. In fact, most organs contribute to more than one system. 
In multicellular organisms, including humans, all cells, tissues, organs, and organ systems of the body work together to maintain the life and health of the organism. To study the chemical level of organization, scientists consider the simplest building blocks of matter: subatomic particles, atoms and molecules. The organism level is the highest level of organization. Before you begin to study the aging of the human body, it is helpful to consider its basic architecture; that is, how its smallest parts are assembled into larger structures. In fact, most organs contribute to more than one system. { "1.00:_Introduction" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "1.01:_Overview_of_Anatomy_and_Physiology" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "1.02:_Structural_Organization_of_the_Human_Body" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "1.03:_Functions_of_Human_Life" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "1.04:_Requirements_for_Human_Life" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "1.05:_Homeostasis" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "1.06:_Anatomical_Terminology" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "1.07:_Medical_Imaging" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()" }, { "01:_An_Introduction_to_the_Human_Body" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "02:_The_Chemical_Level_of_Organization" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "03:_The_Cellular_Level_of_Organization" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "04:_The_Tissue_Level_of_Organization" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()" }, 1.2: Structural Organization of the Human Body, [ "article:topic", "cell", "organ", "organ system", "organism", "tissue", "authorname:openstax", "license:ccby", "showtoc:no", "program:openstax", "licenseversion:40", "source@https://openstax.org/details/books/anatomy-and-physiology" ], https://med.libretexts.org/@app/auth/3/login?returnto=https%3A%2F%2Fmed.libretexts.org%2FBookshelves%2FAnatomy_and_Physiology%2FAnatomy_and_Physiology_1e_(OpenStax)%2FUnit_1%253A_Levels_of_Organization%2F01%253A_An_Introduction_to_the_Human_Body%2F1.02%253A_Structural_Organization_of_the_Human_Body, \( \newcommand{\vecs}[1]{\overset { \scriptstyle \rightharpoonup} {\mathbf{#1}}}\) \( \newcommand{\vecd}[1]{\overset{-\!-\!\rightharpoonup}{\vphantom{a}\smash{#1}}} \)\(\newcommand{\id}{\mathrm{id}}\) \( \newcommand{\Span}{\mathrm{span}}\) \( \newcommand{\kernel}{\mathrm{null}\,}\) \( \newcommand{\range}{\mathrm{range}\,}\) \( \newcommand{\RealPart}{\mathrm{Re}}\) \( \newcommand{\ImaginaryPart}{\mathrm{Im}}\) \( \newcommand{\Argument}{\mathrm{Arg}}\) \( \newcommand{\norm}[1]{\| #1 \|}\) \( \newcommand{\inner}[2]{\langle #1, #2 \rangle}\) \( \newcommand{\Span}{\mathrm{span}}\) \(\newcommand{\id}{\mathrm{id}}\) \( \newcommand{\Span}{\mathrm{span}}\) \( \newcommand{\kernel}{\mathrm{null}\,}\) \( \newcommand{\range}{\mathrm{range}\,}\) \( \newcommand{\RealPart}{\mathrm{Re}}\) \( \newcommand{\ImaginaryPart}{\mathrm{Im}}\) \( \newcommand{\Argument}{\mathrm{Arg}}\) \( \newcommand{\norm}[1]{\| #1 \|}\) \( \newcommand{\inner}[2]{\langle #1, #2 \rangle}\) \( \newcommand{\Span}{\mathrm{span}}\)\(\newcommand{\AA}{\unicode[.8,0]{x212B}}\). Organs that work together are grouped into organ systems. Many people have compared the human body to a machine. After tissues, organs are the next level of organization of the human body. A tissue is a collection of similar, specialized cells. The organism level is the highest level of organization. Legal. A cell is the smallest independently functioning unit of a living organism. Figure \(\PageIndex{3}\): Organ Systems of the Human Body (continued). The Rights Holder for media is the person or group credited. Many human cells are specialized in form and function, as shown in Figure below. These include the chemical, cellular, tissue, organ, organ system, Acellis the smallest independently functioning unit of a living organism. Many of the organ systems that make up the human body are represented here. WebName the levels of structural organization that make up the human body and explain how they are related. Each organ performs one or more specific physiological functions. The human machine is organized at different levels, starting with the cell and ending with the entire organism (see Figure below). Each organ performs one or more specific physiological functions. In multicellular organisms, including humans, all cells, tissues, organs, and organ systems of the body work together to maintain the life and health of the organism. National Geographic Headquarters 1145 17th Street NW Washington, DC 20036. These four tissue types, which are shown in Figure below, make up all the organs of the human body. m1m2m3m4m5m6m7m8m9m10m11m12m13m14m15m16m17m18m19m20m21m22m23m24m25m26m27m28m29m30m31m32m33m34m35m36m37m38m39m40m41m42m43m44m45m46m47m48m49m50m51m52m53m54m55m56m57m58m59m60m61, p1p2p3p4p5p6p7p8p9p10p11p12p13p14p15p16p17p18p19p20p21p22p23p24p25p26p27p28p29p30p31p32p33p34p35p36p37p38p39p40p41p42p43p44p45p46p47p48p49p50p51p52p53p54p55p56p57p58p59p60p61p62p63p64, t1t2t3t4t5t6t7t8t9t10t11t12t13t14t15t16t17t18t19t20t21t22t23t24t25t26t27t28t29t30t31t32t33t34t35t36t37t38t39t40t41t42t43t44t45t46t47t48t49t50t51t52t53t54t55t56t57t58t59t60t61t62t63t64t65t66t67t68, j1j2j3j4j5j6j7j8j9j10j11j12j13j14j15j16j17j18j19j20j21j22j23j24j25j26j27j28j29j30j31j32j33j34j35j36j37j38j39j40j41j42j43j44j45j46j47j48j49j50j51j52j53j54j55j56j57j58, f1f2f3f4f5f6f7f8f9f10f11f12f13f14f15f16f17f18f19f20f21f22f23f24f25f26f27f28f29f30f31f32f33f34f35f36f37f38f39f40f41f42f43f44f45f46f47f48f49f50f51f52f53f54, r1r2r3r4r5r6r7r8r9r10r11r12r13r14r15r16r17r18r19r20r21r22r23r24r25r26r27r28r29r30r31r32r33r34r35r36r37r38r39r40r41r42r43r44r45r46r47r48r49r50r51r52r53r54r55r56r57r58r59r60r61r62r63r64r65r66. WebA P: Levels of structural organization Anatomy and physiology Body. To study the chemical level of organization, scientists consider the simplest building blocks of matter: subatomic particles, atoms and molecules. Throughout this book, "female" and "male" refer to sex only, and the typical anatomy and physiology of XX and XY individuals is discussed. Even bacteria, which are extremely small, independently-living organisms, have a cellular structure. Do you know the functions of any of the cell types shown here? PDF. Any interactives on this page can only be played while you are visiting our website. An organism is a living being that has a cellular structure and that can independently perform all physiologic functions necessary for life. Organs that work together are grouped into organ systems. An organ system is a group of organs that work together to perform major functions or meet physiological needs of the body. Accessibility StatementFor more information contact us atinfo@libretexts.orgor check out our status page at https://status.libretexts.org. Hbergez vos sites Websur une machine qui leur sera ddie!Puissance, polyvalence, libert,c'est la solution d'excellencepour tous vos projets! Muscle cells have many mitochondria that provide the energy they need to move the body. Molecules are the chemical building blocks of all body structures. 34; Fig. An organ is a structure that consists of two or more types of tissues that work together to do In fact, it may be the most fantastic machine on Earth. This page titled 1.3: Structural Organization of the Human Body is shared under a CC BY 4.0 license and was authored, remixed, and/or curated by OpenStax via source content that was edited to the style and standards of the LibreTexts platform; a detailed edit history is available upon request. In multicellular organisms, including humans, all cells, tissues, organs, and organ systems of the body work together to maintain the life and health of the organism. Atoms are made up of subatomic particles such as the proton, electron and neutron. Organ Systems of the Human Body (continued) Organs that work together are grouped into organ systems. The human body consists of these four tissue types. Legal. Chapter 1: An Introduction to the Human Body, { "1.01:_Introduction" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "1.02:_Overview_of_Anatomy_and_Physiology" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "1.03:_Structural_Organization_of_the_Human_Body" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "1.04:_Functions_of_Human_Life" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "1.05:_Requirements_for_Human_Life" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "1.06:_Homeostasis" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "1.07:_Anatomical_Terminology" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "1.08:_Medical_Imaging" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "1.09:_Key_Terms" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "1.10:_Chapter_Review" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "1.11:_Interactive_Link_Questions" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "1.12:_Review_Questions" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "1.13:_Critical_Thinking_Questions" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()" }, { "01:_An_Introduction_to_the_Human_Body" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "02:_The_Chemical_Level_of_Organization" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "03:_The_Cellular_Level_of_Organization" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "04:_The_Tissue_Level_of_Organization" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()" }, 1.3: Structural Organization of the Human Body, [ "article:topic", "cell", "organ", "organ system", "organism", "tissue", "authorname:openstax", "license:ccby", "showtoc:no", "transcluded:yes", "source[1]-med-533", "program:openstax", "licenseversion:40", "source@https://openstax.org/details/books/anatomy-and-physiology" ], https://med.libretexts.org/@app/auth/3/login?returnto=https%3A%2F%2Fmed.libretexts.org%2FBookshelves%2FAnatomy_and_Physiology%2FAnatomy_and_Physiology_2e_(OpenStax)%2F01%253A_Levels_of_Organization%2F01%253A_An_Introduction_to_the_Human_Body%2F1.03%253A_Structural_Organization_of_the_Human_Body, \( \newcommand{\vecs}[1]{\overset { \scriptstyle \rightharpoonup} {\mathbf{#1}}}\) \( \newcommand{\vecd}[1]{\overset{-\!-\!\rightharpoonup}{\vphantom{a}\smash{#1}}} \)\(\newcommand{\id}{\mathrm{id}}\) \( \newcommand{\Span}{\mathrm{span}}\) \( \newcommand{\kernel}{\mathrm{null}\,}\) \( \newcommand{\range}{\mathrm{range}\,}\) \( \newcommand{\RealPart}{\mathrm{Re}}\) \( \newcommand{\ImaginaryPart}{\mathrm{Im}}\) \( \newcommand{\Argument}{\mathrm{Arg}}\) \( \newcommand{\norm}[1]{\| #1 \|}\) \( \newcommand{\inner}[2]{\langle #1, #2 \rangle}\) \( \newcommand{\Span}{\mathrm{span}}\) \(\newcommand{\id}{\mathrm{id}}\) \( \newcommand{\Span}{\mathrm{span}}\) \( \newcommand{\kernel}{\mathrm{null}\,}\) \( \newcommand{\range}{\mathrm{range}\,}\) \( \newcommand{\RealPart}{\mathrm{Re}}\) \( \newcommand{\ImaginaryPart}{\mathrm{Im}}\) \( \newcommand{\Argument}{\mathrm{Arg}}\) \( \newcommand{\norm}[1]{\| #1 \|}\) \( \newcommand{\inner}[2]{\langle #1, #2 \rangle}\) \( \newcommand{\Span}{\mathrm{span}}\)\(\newcommand{\AA}{\unicode[.8,0]{x212B}}\), Levels of Structural Organization of the Human Body. The organism level is the highest level of organization. The life processes of the organism are built and maintained at several physical levels, which biologists call levels of organization: the cellular level, the tissue level, the Female: uterus; vagina; fallopian tubes; ovaries. The organism level is the highest level of organization. Human organs are organized into organ systems, many of which are shown in Figure below. It is convenient to consider the structures of the body in terms of fundamental levels of organization that increase in complexity: subatomic particles, atoms, molecules, organelles, cells, tissues, organs, organ systems, organisms and biosphere (Figure 1). Collects, transfers, and processes information. Compare and contrast epithelial and muscle tissues. Each type of cell in the figure plays a specific role. Atoms, tiny building blocks of matter, combine to form molecules. Molecules are the chemical building blocks of all body structures. We also acknowledge previous National Science Foundation support under grant numbers 1246120, 1525057, and 1413739. 1.2: Structural Organization of the Human Body is shared under a not declared license and was authored, remixed, and/or curated by LibreTexts. For information on user permissions, please read our Terms of Service. Thus, the heart is an organ composed of all four tissues, whose function is to pump blood throughout the body. An organism is a living being that has a cellular structure and that can independently perform all physiologic functions necessary for life. cells that form a specific function in a living organism. Chemical, cellular, tissue, organ, organ system, organism. If a media asset is downloadable, a download button appears in the corner of the media viewer. These include the chemical, cellular, tissue, organ, organ system, and the organism level. Each bacterium is a single cell. In the human body, not all cells look or work the same. In humans, as in all organisms, cells perform all functions of life. Q. What is the overall function of each organ system? Explain how form and function are related in human cells. People often use the words "female" and "male" to describe two different concepts: our sense of gender identity, and our biological sex as determined by our chromosomes, hormones, organs, and other physical characteristics. Figure 1. A number of organ systems, including the cardiovascular and respiratory systems, all work together to do this. Each organ performs one or more specific physiological functions. Webnothing chapter an introduction to the human body structural organization of the human body the end of this section, you will be able to: describe the
A cell is the smallest independently functioning unit of a living organism. They must all be able to work together. Your organ systems do not work alone in your body. Q. WebThe general scope of a project to determine the protein molecules that comprise the cells within the human body is framed. In humans, as in all organisms, cells perform all functions of life. We also acknowledge previous National Science Foundation support under grant numbers 1246120, 1525057, and 1413739. Higher levels of organization are built from lower levels. The LibreTexts libraries arePowered by NICE CXone Expertand are supported by the Department of Education Open Textbook Pilot Project, the UC Davis Office of the Provost, the UC Davis Library, the California State University Affordable Learning Solutions Program, and Merlot. Esophagus; stomach; small intestine; large intestine. By the end of this section, you will be able to: Before you begin to study the different structures and functions of the human body, it is helpful to consider its basic architecture; that is, how its smallest parts are assembled into larger structures. Chapter 1: An Introduction to the Human Body. We also acknowledge previous National Science Foundation support under grant numbers 1246120, 1525057, and 1413739. The smallest unit of any of these pure substances (elements) is an atom. In humans, as in all organisms, cells perform all functions of life. Each organ of the system does part of the larger job. Molecules are the chemical building blocks of all body structures. WebThe organization of the body often is discussed in terms of six distinct levels of increasing complexity, from the smallest chemical building blocks to a unique human organism. The smallest unit of any of these pure substances (elements) is an atom. User WebIt is convenient to consider the structures of the body in terms of fundamental levels of organization that increase in complexity: subatomic particles, atoms, molecules, organelles, cells, tissues, organs, organ systems, organisms and biosphere (Figure 1). A human cell typically consists of flexible membranes that enclose cytoplasm, a water-based cellular fluid together with a variety of tiny functioning units called organelles. In fact, most organs contribute to more than one system. In multicellular organisms, including humans, all cells, tissues, organs, and organ systems of the body work together to maintain the life and health of the organism. To study the chemical level of organization, scientists consider the simplest building blocks of matter: subatomic particles, atoms and molecules. The organism level is the highest level of organization. Before you begin to study the aging of the human body, it is helpful to consider its basic architecture; that is, how its smallest parts are assembled into larger structures. In fact, most organs contribute to more than one system. { "1.00:_Introduction" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.