Projection

Projection (Medicine)

Projection (/prəˈdʒɛkʃən/) is a term used in various fields of medicine to describe a variety of processes or mechanisms.

Etymology

The term 'projection' originates from the Latin 'proiectio', meaning 'a throwing forward'.

In Radiology

In radiology, a projection is the path that the X-ray beam takes through the patient's body from the entrance to the exit point. The term is also used to describe the orientation of the image produced. For example, an 'anteroposterior (AP) projection' refers to an X-ray image taken with the beam entering through the front (anterior) of the body and exiting through the back (posterior).

In Psychiatry

In psychiatry, projection is a defense mechanism where an individual attributes their own unacceptable thoughts, feelings, or motives to another person. This is often unconscious and is a way for the individual to deny the existence of these thoughts or feelings in themselves.

In Anatomy

In anatomy, a projection is a part or structure that extends out from the main body of an organ or tissue. For example, the 'acromial projection' is a bony process on the scapula (shoulder blade) that extends out to form part of the shoulder joint.

Related Terms

• Radiograph
• Defense Mechanism
• Anatomical Terms of Location

See Also

• Medical Terminology
• Psychological Projection
• Radiographic Projections

External links

• Medical encyclopedia article on Projection
• Wikipedia's article - Projection

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