Category: P

The point of attachment of the superior pharyngeal constrictor and its fibrous raphe on the inferior surface of the basilar part of the occipital bone.  

Obtaining sperm from a body shortly after death in an attempt to use the specimen to impregnate the fiancee or wife of the deceased. The sperm may be frozen for later use.  

A small vaginal speculum for examining prepubertal patients or others with small vaginal orifices.  

The anterior portion of the posterior chamber of the eye.  

Air-containing spaces in bone, especially those in the paranasal sinuses.  

One of four spaces between the fascial layers of the foot. When the foot is infected, pus may be found there.  

In the respiratory tract, any nonfunctional alveoli that do not receive air that participates in gas exchange. Possible causes include emphysema, pneumothorax, pneumonia, pulmonary edema, and constriction of bronchioles.  

The spaces within adventitia of larger blood vessels of the brain. They communicate with the subarachnoid space.  

A radiolucent space that appears on a dental radiograph between the tooth and the adjacent lamina dura. The space is occupied by the periodontal ligament, which lacks the density to be radiopaque.  

The space pierced by blood vessels at the base of the brain.