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Medial and Lateral. Imagine a line in the sagittal plane, splitting the right and left halves evenly. This is the midline. Medial means towards the midline, lateral means away from the midline. Examples: The eye is lateral to the nose. The nose is medial to the ears. The brachial artery lies medial to the biceps tendon.
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Medial means toward the middle or center. It is the opposite of lateral. The term is used to describe general positions of body parts. For example, the chest is medial to the arm.
The opposite is true for the term "posteroanterior," while side-to-side projections are known as either "lateromedial" (from the outside of the left or right side of the body toward the inside) or "mediolateral"(from the inside of that side of the body toward the outside.
Lateral refers to the side or outer part of the body, away from the midline. It is the opposite of medial, which refers to the middle or inner part of the body, closer to the midline. For example, the ears are located laterally on the head, while the nose is located medially.
Medial means toward the middle or center. It is the opposite of lateral. The term is used to describe general positions of body parts. For example, the chest is medial to the arm. Your health care provider may use this term to clearly explain the relationship between things found during a physical exam or on medical tests.
The term medial is the opposite of lateral, and denotes how close a structure is to the median plane of the body. For example, the ear is lateral to the eye, which is in turn lateral to the nose. Alternatively, the nose is medial to the eye.
Anterior and Posterior. These terms describe positions towards the front (anterior) and back (posterior) of the body, with respect to the organism’s forward motion. In humans, the chest is anterior, while the back is posterior. In cats, for example, the head is anterior while the tail is posterior.
Multimedia Encyclopedia. Print-Friendly. Medial means toward the middle or center. It is the opposite of lateral . The term is used to describe general positions of body parts. For example, the chest is medial to the arm.
Key Differences. Medial and Lateral are anatomical directional terms used to describe the positions of structures in the body relative to other structures or general body orientation. Medial means that a structure is closer to the midline or center of the body.