Mindblown: a blog about philosophy.

  • Haversian canaliculus

    One of many channels extending from the lacuna of an osteocyte into the bone matrix, to a canaliculus of an adjacent osteocyte. By way of these channels osteocytes remain in contact with one another to transmit nutrients and gases.  

  • Haverhill fever

    A febrile disease transmitted to humans by rats, usually by rat bite. Streptobacillus moniliformis is the etiological agent. Haverhill fever is a type of rat-bite fever resulting from infection with the bacterium Streptobacillus Moniliformis. Unlike other forms of the disease, Haverhill fever can be transmitted not only through the bite of a rodent but also…

  • Haustration

    The formation of segment or recess, especially in the bowel.  

  • Enamel hatchet

    A hand-held cutting instrument with a blade set continuous with the handle.  

  • Hassall’s corpuscle

    A spherical or oval body present in the medulla of the thymus. It consists of a central area of degenerated cells surrounded by concentrically arranged flattened or polygonal cells.  

  • Hartmann’s procedure

    The surgical removal of a diseased portion of the distal colon or proximal rectum with formation of an end colostomy, accompanied by over-sewing of the distal colonic or rectal remnant. This procedure may be the first stage of a two-part operation, in which at a later date, the colostomy and the over-sewn remnant are reconnected.…

  • Harrison Narcotic Act

    A law enacted in 1914 that classified certain drugs as habit forming and restricted their sale and distribution.  

  • Harpoon

    A device with a hook on one end for obtaining small pieces of tissue such as muscle for examination.  

  • Harness

    In postamputation rehabilitation, the part of an upper extremity prosthesis that fits around the shoulder and back to permit mechanical control of the terminal device and hold the socket firmly around the stump.  

  • Harmonic

    In physics, concerning wave forms, an oscillation or frequency that is a whole number multiple of the basic frequency.  

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