In the study of anatomy, precision is paramount. When medical professionals discuss the location of a wound, the position of an organ, or the direction of a surgical incision, they cannot rely on vague descriptions like "above" or "to the side," as these can change depending on how a patient is sitting or lying. To prevent confusion, the field utilizes a standardized system of anatomical position, directional terminology, regional terms, and sectional planes. This article will guide you through these essential tools, which serve as the universal language of the human body.
The Standard Reference: Anatomical Position
To ensure that "left" always means the patient's left and "up" always means toward the head, all anatomical descriptions assume the body is in a specific, standardized posture known as the anatomical position.
In the anatomical position, the body is:
- Standing upright and facing forward.
- Legs positioned hip-width apart.
- Arms at the sides with the palms facing forward.
It is crucial to remember that even if a patient is curled in a fetal position or lying on their side during an exam, medical professionals will still describe their anatomy as if they were in this standard upright position.
Related Postural Terms
When a patient is not standing, two common terms describe their orientation relative to the ground:
- Supine: Lying down with the face and torso facing upward.
- Prone: Lying down with the face and torso facing downward.
Exam Tip: If a question asks for the position of a structure while a patient is lying on their stomach, always translate that position back to the anatomical position before applying directional terms.
Keep reading for free.
Create an account to finish this reading and make it part of your study routine.
Continue reading freeAlready have an account? Log in
Updated