
Glossary
P
- Perineal
- Referring to the perineum, the external body surface surrounding the vaginal and rectal orifices.
- Periodontal
- Pertaining to the gums.
- Perirectal
- Surrounding the rectum.
- Peristalsis
- Contractions of the muscular layers of the GI tract that propel food forward.
- Phagocyte
- Cell that ingests and destroys foreign substances; this process is called phagocytosis.
- Pharynx
- The cone-shaped space that connects the mouth and nasal cavities to the oesophagus; it is commonly referred to as the "throat".
- Phenotype
- The appearance of an individual resulting from an interaction of genetic and environmental influences.
- Phonophobia
- Intolerance of sound.
- Photophobia
- Aversion to light.
- Photosensitivity
- Abnormal sensitivity to light.

