Anaplasmosis: A tick-borne disease of cattle, sheep, and related ruminants caused by a microorganism called Anaplasma marginale and characterized by anemia and jaundice. Also called gallsickness and gall sickness.
Anaptic: Suffering from an impaired sense of touch, (a state called anaphia) or tactile anesthesia. An anaptic person has anaphia (an, not + Greek haphe, touch = inability to (feel) touch.
Anastomosis: The connection of normally separate parts. An anastomosis may be naturally occurring or it may be created during embryonic development, surgery, or trauma, or by pathological means. An anastomosis may, for example, connect two blood vessels, or it may connect the healthy sections of the colon or rectum after a cancerous or otherwise diseased […]
- Anatomic orientation terms
Anatomic orientation terms: In anatomy, certain terms are used to denote orientation. For example, a structure may be horizontal, as opposed to vertical. Some of the terms of anatomic orientation are as follows: Anterior: The front, as opposed to the posterior. Anteroposterior: From front to back, as opposed to posteroanterior. Caudad: Toward the feet (or […]
- Anatomical position
Anatomical position: The position with the body erect with the arms at the sides and the palms forward. The anatomical position is of importance in anatomy because it is the position of reference for anatomical nomenclature. Anatomic terms such as anterior and posterior, medial and lateral, abduction and adduction, and so on apply to the […]
- Anatomical snuffbox
Anatomical snuffbox: A hollow seen on the radial aspect (the thumbside) of the dorsum (the back) of the wrist when the thumb is extended fully. The reason that it is called the anatomical snuffbox is that snuff (powdered tobacco) could be put there and then inhaled.