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  2. Morphology (biology) - Wikipedia

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

    Morphology of a male skeleton shrimp, Caprella mutica Morphology in biology is the study of the form and structure of organisms and their specific structural features. [1]This includes aspects of the outward appearance (shape, structure, color, pattern, size), i.e. external morphology (or eidonomy), as well as the form and structure of internal parts like bones and organs, i.e. internal ...

  3. Secondary sex characteristic - Wikipedia

    en.wikipedia.org/wiki/Secondary_sex_characteristic

    In females, breasts are a manifestation of higher levels of estrogen; estrogen also widens the pelvis and increases the amount of body fat in hips, thighs, buttocks, and breasts. [1] [2] Estrogen also induces growth of the uterus, proliferation of the endometrium, and menstruation. [1] Female secondary sex characteristics include:

  4. Appendage - Wikipedia

    en.wikipedia.org/wiki/Appendage

    A beetle leg. An appendage (or outgrowth) is an external body part or natural prolongation that protrudes from an organism's body such as an arm or a leg. Protrusions from single-celled bacteria and archaea are known as cell-surface appendages or surface appendages.

  5. List of anatomy mnemonics - Wikipedia

    en.wikipedia.org/wiki/List_of_anatomy_mnemonics

    This is a list of human anatomy mnemonics, categorized and alphabetized.For mnemonics in other medical specialties, see this list of medical mnemonics.Mnemonics serve as a systematic method for remembrance of functionally or systemically related items within regions of larger fields of study, such as those found in the study of specific areas of human anatomy, such as the bones in the hand ...

  6. Physiognomy - Wikipedia

    en.wikipedia.org/wiki/Physiognomy

    Physiognomy as a practice meets the contemporary definition of pseudoscience [1] [2] [3] and is regarded as such by academics because of its unsupported claims; popular belief in the practice of physiognomy is nonetheless still widespread and modern advances in artificial intelligence have sparked renewed interest in the field of study.

  7. Mating system - Wikipedia

    en.wikipedia.org/wiki/Mating_system

    A mating system is a way in which a group is structured in relation to sexual behaviour. The precise meaning depends upon the context. With respect to animals, the term describes which males and females mate under which circumstances.

  8. Anatomical terminology - Wikipedia

    en.wikipedia.org/wiki/Anatomical_terminology

    Anatomy is often described in planes, referring to two-dimensional sections of the body. A section is a two-dimensional surface of a three-dimensional structure that has been cut. A plane is an imaginary two-dimensional surface that passes through the body. Three planes are commonly referred to in anatomy and medicine: [1] [2]: 4

  9. Insect morphology - Wikipedia

    en.wikipedia.org/wiki/Insect_morphology

    A more formal definition is that it is the sclerite from which the pharyngeal dilator muscles arise, but in many contexts that too, is not helpful. [7] In the anatomy of some taxa, such as many Cicadomorpha , the front of the head is fairly clearly distinguished and tends to be broad and sub-vertical; that median area commonly is taken to be ...