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  2. Organ system - Wikipedia

    en.wikipedia.org/wiki/Organ_system

    There are other systems in the body that are not organ systems—for example, the immune system protects the organism from infection, but it is not an organ system since it is not composed of organs. Some organs are in more than one system—for example, the nose is in the respiratory system and also serves as a sensory organ in the nervous ...

  3. Development of the human body - Wikipedia

    en.wikipedia.org/wiki/Development_of_the_human_body

    Human growthand development. Development of the human body is the process of growth to maturity. The process begins with fertilization, where an egg released from the ovary of a female is penetrated by a sperm cell from a male. The resulting zygote develops through mitosis and cell differentiation, and the resulting embryo then implants in the ...

  4. Biological system - Wikipedia

    en.wikipedia.org/wiki/Biological_system

    A biological system is a complex network which connects several biologically relevant entities. Biological organization spans several scales and are determined based different structures depending on what the system is. [1] Examples of biological systems at the macro scale are populations of organisms. On the organ and tissue scale in mammals ...

  5. Physiology - Wikipedia

    en.wikipedia.org/wiki/Physiology

    t. e. Physiology (/ ˌfɪziˈɒlədʒi /; from Ancient Greek φύσις (phúsis) 'nature, origin' and -λογία (-logía) 'study of') [1] is the scientific study of functions and mechanisms in a living system. [2][3] As a subdiscipline of biology, physiology focuses on how organisms, organ systems, individual organs, cells, and biomolecules ...

  6. Anatomy - Wikipedia

    en.wikipedia.org/wiki/Anatomy

    A dissected body, lying prone on a table, by Charles Landseer. Derived from the Greek ἀνατομή anatomē "dissection" (from ἀνατέμνω anatémnō "I cut up, cut open" from ἀνά aná "up", and τέμνω témnō "I cut"), [7] anatomy is the scientific study of the structure of organisms including their systems, organs and tissues ...

  7. Organ (biology) - Wikipedia

    en.wikipedia.org/wiki/Organ_(biology)

    Organ (biology) In a multicellular organism, an organ is a collection of tissues joined in a structural unit to serve a common function. [1] . There are approxiamately 79 Organs in the human body,but it is something that is debated as not all scientist agree on what counts as an organ. In the hierarchy of life, an organ lies between tissue and ...

  8. Behavioral neuroscience - Wikipedia

    en.wikipedia.org/wiki/Behavioral_neuroscience

    Behavioral neuroscience, also known as biological psychology, [1] biopsychology, or psychobiology, [2] is part of the broad, interdisciplinary field of neuroscience, with its primary focus being on the biological and neural mechanisms underlying behavior. Cognitive neuroscience is similar to behavioral neuroscience, in that both fields study ...

  9. Physiological psychology - Wikipedia

    en.wikipedia.org/wiki/Physiological_psychology

    Physiological psychology. Physiological psychology is a subdivision of behavioral neuroscience (biological psychology) that studies the neural mechanisms of perception and behavior through direct manipulation of the brains of nonhuman animal subjects in controlled experiments. [1][page needed] This field of psychology takes an empirical and ...