Category: U

  • Uncus

    A projecting part of the cerebral hemisphere, shaped like a hook. Hook-shaped structure, esp. that projecting from the lower surface of the cerebral hemispheres. Any hook-shaped structure, especially a projection of the lower surface of the cerebral hemisphere that is composed of cortex belonging to the temporal lobe. A structure resembling a hook. A distinct…

  • Uncoordinated

    Not working together.  

  • Uncontrollable

    Not able to be controlled.  

  • Unconsciousness

    The state of being unconscious, e.g. as a result of lack of oxygen or from some other external cause such as a blow on the head. State of complete or partial unawareness of the surroundings and lack of response to sensory stimuli. It may be caused by many conditions, including shock; lack of respiratory efficiency;…

  • Uncinate epilepsy

    A type of temporal lobe epilepsy, in which the person has hallucinations of smell and taste.  

  • Unciform bone

    One of the eight small carpal bones in the wrist, shaped like a hook. A bone with a hook-like shape located in the second row of the carpal bones of the wrist, also known as the hamate bone.  

  • Unblock

    To remove something which is blocking.  

  • Unaided

    Without any help.  

  • Umbilical region

    The central part of the abdomen, below the epigastrium.  

  • Umbilical hernia

    A hernia which bulges at the navel, usually in young children. A pushing out of the abdominal wall because of weakness near the navel, a condition common among infants that also sometimes occurs in women after childbirth. Protrusion of the intestine and omentum through a weakness in the abdominal wan near the umbilicus; it often…