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  2. Human reproduction - Wikipedia

    en.wikipedia.org/wiki/Human_reproduction

    t. e. Human reproduction is sexual reproduction that results in human fertilization to produce a human offspring. It typically involves sexual intercourse between a sexually mature human male and female. [1] During sexual intercourse, the interaction between the male and female reproductive systems results in fertilization of the ovum by the ...

  3. Sex-determination system - Wikipedia

    en.wikipedia.org/wiki/Sex-determination_system

    A sex-determination system is a biological system that determines the development of sexual characteristics in an organism. [1] Most organisms that create their offspring using sexual reproduction have two common sexes and a few less common intersex variations. In some species, there are hermaphrodites. [2]

  4. Porro prism - Wikipedia

    en.wikipedia.org/wiki/Porro_prism

    A double Porro prism system reflects light four times. Porro prisms are most often used in pairs, forming a double Porro prism. A second prism rotated 90° with respect to the first, is placed such that light will traverse both prisms. The net effect of the prism system is a beam parallel to but displaced from its original direction, with the ...

  5. Circulatory system - Wikipedia

    en.wikipedia.org/wiki/Circulatory_system

    The circulatory system is a system of organs that includes the heart, blood vessels, and blood which is circulated throughout the entire body of a human or other vertebrate. [1] [2] It includes the cardiovascular system , or vascular system , that consists of the heart and blood vessels (from Greek kardia meaning heart , and from Latin vascula ...

  6. Colorado Department of Corrections - Wikipedia

    en.wikipedia.org/wiki/Colorado_Department_of...

    The Colorado Department of Corrections is the principal department of the Colorado state government [2] that operates the state prisons. It has its headquarters in the Springs Office Park in unincorporated El Paso County, Colorado, near Colorado Springs. [3] [4] [5] The Colorado Department of Corrections runs 20 state-run prisons and also has ...

  7. List of organs of the human body - Wikipedia

    en.wikipedia.org/wiki/List_of_organs_of_the...

    t. e. This article contains a list of organs of the human body. It is widely believed that there are 79 organs (this number goes up if you count each bone and muscle as an organ on their own, which is becoming more common practice to do [1] [2] ); however, there is no universal standard definition of what constitutes an organ, and some tissue ...

  8. Limbic system - Wikipedia

    en.wikipedia.org/wiki/Limbic_system

    The limbic system, also known as the paleomammalian cortex, is a set of brain structures located on both sides of the thalamus, immediately beneath the medial temporal lobe of the cerebrum primarily in the forebrain. [1] Its various components support a variety of functions including emotion, behavior, long-term memory, and olfaction.

  9. Human reproductive system - Wikipedia

    en.wikipedia.org/wiki/Human_reproductive_system

    The male reproductive system is a series of organs located outside the body and around the pelvis region of a male that contribute towards the reproduction process. The primary direct function of the male reproductive system is to provide the male sperm for fertilization of the ovum. Penile shrinkage due to low temperatures.