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- Flexion and Extension. Flexion and extension are movements that occur in the sagittal plane. They refer to increasing and decreasing the angle between two body parts
- Abduction and Adduction. Abduction and adduction are two terms that are used to describe movements towards or away from the midline of the body. Abduction is a movement away from the midline – just as abducting someone is to take them away.
- Medial and Lateral Rotation. Medial and lateral rotation describe movement of the limbs around their long axis: Medial rotation is a rotational movement towards the midline.
- Elevation and Depression. Elevation refers to movement in a superior direction (e.g. shoulder shrug), depression refers to movement in an inferior direction.
- Introduction
- Planes
- Axes
- Flexion and Extension
- Abduction and Adduction
- Elevation and Depression
- Internal and External Rotation
- Circumduction
- Pronation and Supination
- Dorsiflexion and Plantarflexion
The movements produced at joints by muscles are given specific anatomical names, often referred to as “anatomical terms of motion”. We usually make the assumption that the body is in normal resting anatomical position, and that joint movement occurs from this resting position. In this article, we explore the difference between an axis and a plane, ...
There are several different planesthat we use to describe the body and movements. There are three major planes.
There are also several different axeswe use to describe the movement of a joint. It is useful to think of an axis as a metal pole, and the joint rotating around this pole.
When talking about flexion and extension, we are usually referring to these movements as they occur about the coronal axis, and along the sagittal plane. Flexion refers to decreasing a joint angle, and extension to increasing the joint angleback to resting anatomical position.
Abduction and adduction refer to movements made about a sagittal axis and along the coronal plane. Abduction is moving a body part away from its resting anatomical position in the coronal plane; adduction is returning it to its normal resting position(includes ‘hyperadduction’).
Elevation refers to lifting, and depression refers to lowering. These movements only occur in several regions of the body and are a result of movement along the coronal plane.
Rotationrefers to movements made about the longitudinal axis and in the transverse plane. Internal rotation is rotating a joint towards the midline and external rotationis rotating a joint away from the midline.
Circumduction is a compound movement that occurs only at ball and socket joints, which can perform multiple movement types. As Figure 23, it is a combination of: 1. Flexion and extension 2. Abduction and adduction 3. Rotation Circumduction is described as a circular motion utilising each of these movements at different parts of the circular motion....
Pronation and supinationoccur at pivot joints. The most important example of this is the radiohumeral joint and the union of the radius and ulna through the interosseous membrane. To remember pronation, think of lying prone (on your belly). Thus, pronation of the radiohumeral joint refers to the palm of the hand facing the ground. To remember supin...
The foot is a little special and has four movements specific to it. The first two, dorsiflexion and plantarflexion, refer to the way the foot moves about the coronal axis and along the sagittal plane. Dorsiflexion brings the dorsum (back) of the foot back toward the tibia, so the toes are beginning to point towards the sky. This is a position of hi...
- William Maish
Use appropriate anatomical terminology to identify key body structures, body regions, and directions in the body; Demonstrate the anatomical position; Describe the human body using directional and regional terms; Identify three planes most commonly used in the study of anatomy; Distinguish between major body cavities
- Lindsay M. Biga, Sierra Dawson, Amy Harwell, Robin Hopkins, Joel Kaufmann, Mike LeMaster, Philip Mat...
- 2019
Aug 25, 2024 · Definitions of medical terms built from word components of Greek and Latin origin can be easily identified by analyzing the components, defining each component, and then building the meaning of the term based on the meaning of its components.
Protrusion, Retrusion, and Excursion in Anatomy. In this anatomy lesson, I’m going to demonstrate protrusion, retrusion, and excursion, which are special body movement terms in anatomy that refer to forward (anterior), backward (posterior), or side to side movements.
Oct 1, 2024 · Anatomical terms provide a precise and standardized language for describing body regions, movements, and the relationships between different structures. Mastery of this terminology is essential for healthcare professionals to ensure clear, accurate communication with colleagues in both clinical and scientific settings.
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Jan 9, 2020 · Medical terminology is language that is used to describe anatomical structures, processes, conditions, medical procedures, and treatments.
