Category: H

One of the genes composing the HLA complex that determines the histocompatibility antigenic markers on all nucleated cells. These genes create the antigens by which the immune system recognizes “self’ and determines the “non-self’ nature of pathogens and other foreign antigens. These antigens are crucial determinants of the success or failure of organ transplantation.  

An uncommon disorder marked by protein loss from the upper gastrointestinal tract and enlarged gastric rugal folds.  

A disparity between health care needs and health care services, especially as it applies to the medically indigent.  

A gait in which one or both feet describe a half circle with each step, sometimes seen in hysteria.  

A formula used to estimate the prognosis of a person who has already survived an illness for a specific time.  

A tremulous sensation felt on palpating a hydatid tumor.  

A bipedicular fracture of the second cervical vertebra, often with a concomitant dislocation of the vertebra. The term hangman’s fracture stems from properly performed judicial hangings. At the moment when the dropped victim fully extends the rope, the hangman’s knot causes fracture dislocation of the upper cervical spine and transection of the spinal cord or…

The deep depression in the sphenoid bone in which the pituitary gland rests.  

The depression on the anterior surface of the vitreous body of the eye. The lens is located there.  

A small curved or straight hemostatic forceps.