Category: O

A line that connects the anterior and posterior poles of the eye.  

Loss of hand-eye coordination in reaching for an object one has seen, as a result of damage to visually dedicated regions of the cerebral cortex.  

The evaluation and care of patients recovered from the field, performed en route to the hospital. It includes reassessments of mental status, airway, breathing, circulation, vital signs, chief complaints, and the effectiveness of initial treatments.  

A branch of the abdominal aorta, supplying blood to the ovaries, their ligaments, the fallopian tubes, and the distal ureters.  

A branch of the internal carotid artery, supplying blood to the eye. The ophthalmic artery is responsible for delivering blood to the eye and its neighboring structures.  

In organ transplantation, diffuse concentric stenosis of the graft’s arteries resulting from immunologic rejection. It is characterized pathologically by hyperplastic scarring of the intima of affected arteries, along with infiltration by foam cells.  

Absent or dysfunctional breathing that occurs when the upper airway is intermittently blocked during sleep. Observation of the patient reveals vigorous but ineffective respiratory efforts, often with loud snoring or snorting.  

A form of agnosia marked by inability to name an object recognized by sight without the aid of sound, taste, or touch.  

An antigen that is normally expressed in the fetus and may reappear in the adult in association with certain tumors. Examples include alpha-fetoprotein and carcinoembryonic antigens.  

The angle formed at the anterior nasal spine by the intersection of lines drawn from the auricular point and the glabella.