Knowra Body regions Body regions Body regions are named divisions of the human body, including the head, trunk, and limbs. They provide a consistent framework for describing locations and organizing anatomical study.
Anatomical position : A standardized upright stance with the face forward, arms at the sides, and palms facing forward. This reference stance fixes how body regions and their locations are described.
Regional anatomy : The study of the body's structures by areas and the relationships among structures within each area. It organizes anatomical study directly around named body regions.
Dermatome : An area of skin supplied mainly by sensory fibers from one spinal nerve root. Skin symptoms mapped by dermatomes can be reported alongside the affected body region.
Systemic anatomy : The study of the body by organ systems, such as the nervous, circulatory, and digestive systems. Unlike regional anatomy, it follows structures across the body by system rather than by area.
Anatomical planes : Imaginary flat surfaces that divide the body into sections, including sagittal, frontal, and transverse planes. Planes provide a second framework for locating structures within regional divisions.
Surface anatomy : The study of external body features and their relationships to underlying structures. Visible landmarks help identify boundaries and locate structures within regions.
Referred pain : Pain perceived at a site different from the tissue or organ that generated it. Its patterns connect symptoms in one region with causes elsewhere in the body.
Organ system : A group of organs and tissues that work together to perform major functions in the body. System divisions can cross several body regions instead of matching their boundaries.
Anatomical terminology : The standardized vocabulary used to describe body structures, locations, directions, and relationships. Regional names work alongside this broader vocabulary to make anatomical descriptions precise.
Abdominal quadrants : Four divisions of the abdomen—right upper, left upper, right lower, and left lower—used to describe locations. They subdivide one region into practical locations for examination and clinical description.
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