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  2. Sexual reproduction - Wikipedia

    en.wikipedia.org/wiki/Sexual_reproduction

    [2] [8] Sexual reproduction does not occur in prokaryotes, unicellular organisms without cell nuclei, such as bacteria and archaea. However, some processes in bacteria, including bacterial conjugation , transformation and transduction , may be considered analogous to sexual reproduction in that they incorporate new genetic information. [ 9 ]

  3. Uterine malformation - Wikipedia

    en.wikipedia.org/wiki/Uterine_malformation

    The American Fertility Society (now American Society of Reproductive Medicine) Classification distinguishes: . Class I—Müllerian agenesis (absent uterus). This condition is represented by the hypoplasia or the agenesis (total absence) of the different parts of the uterus:

  4. HER2 - Wikipedia

    en.wikipedia.org/wiki/HER2

    One of which is erbB-2, and the other members being erbB-1, erbB-3 (neuregulin-binding; lacks kinase domain), and erbB-4. All four contain an extracellular ligand binding domain, a transmembrane domain, and an intracellular domain that can interact with a multitude of signaling molecules and exhibit both ligand-dependent and ligand-independent ...

  5. Gynecomastia - Wikipedia

    en.wikipedia.org/wiki/Gynecomastia

    [9] [22] It may also be accompanied by breast tenderness or nipple sensitivity, which is commonly associated with gynecomastia observed in adolescents, typically early in development. [21] Gynecomastia that is painful, bothersome, rapidly-growing, associated with masses in other areas of the body, or persistent should be evaluated by a ...

  6. Parasympathetic nervous system - Wikipedia

    en.wikipedia.org/wiki/Parasympathetic_nervous_system

    [1] [2] The autonomic nervous system is responsible for regulating the body's unconscious actions. The parasympathetic system is responsible for stimulation of "rest-and-digest" or "feed-and-breed" [ 3 ] activities that occur when the body is at rest, especially after eating, including sexual arousal , salivation , lacrimation (tears ...