Mindblown: a blog about philosophy.

  • Lactose intolerance

    A condition in which a person cannot digest lactose because lactase is absent in the intestine or because of an allergy to milk, causing diarrhoea. The absence of an enzyme that is needed to digest milk sugar. Inability to digest lactose due to decreased (or absence of) lactase activity. In the absence of lactase, lactose…

  • Lactiferous duct

    A duct in the breast which carries milk. Any of several ducts that transport milk from the lobes of the breast to the nipple. One of 15 to 20 ducts that drain the lobes of the mammary gland. Each opens in a slight depression in the tip of the nipple. The 16 ducts in the…

  • Lactate

    To produce milk in the body. One of the end products of glycolysis.  

  • Lacrimator

    A substance which irritates the eyes and makes tears flow. A substance that increases the flow of tears.  

  • Lacrimal puncta

    Small openings of the lacrimal canaliculus at the corners of the eyes through which tears drain into the nose.  

  • Lacrimal duct

    A small duct leading from the lacrimal gland. One of two short ducts, inferior and superior, that convey tears from the lacrimal lake to the lacrimal sac. Their openings are on the margins of the upper and lower eyelids. Nasolacrimal duct refers to a brief passageway that extends from a small opening at the inner…

  • Lacrimal caruncle

    A small red point at the inner corner of each eye. A small reddish elevation found on the conjunctiva near the inner canthus, at the medial angle of the eye. The small, pinkish pad typically observed at the inner corner of the eye.  

  • Lacrimal canaliculus

    A small canal draining tears into the lacrimal sac.  

  • Lacrimal bone

    One of two little bones which join with others to form the orbits. Small, fragile facial bone located at the inner part of the orbital cavity. Small, flat bones within the eye sockets, near the lacrimal tear glands. The smallest bones of the face, one forming part of the bony structure of each orbit containing…

  • Lacrimal apparatus

    The arrangement of glands and ducts which produce and drain tears. Structures that secrete and drain tears from the eye. Tears produced in the lacrimal gland drain through small openings at the comer of the eye into special ducts that pass into the nasal cavity. A body system associated with the production and drainage of…

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