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Dorsal: Refers to the back or posterior side of the body or a structure. In humans, it's the side where the back is located.

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Dorsal: Refers to the back or posterior side of the body or a structure. In humans, it's the side where the back is located.

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Ventral: Refers to the front or anterior side of the body or a structure. In humans, it's the side where the belly is located.

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Ventral: Refers to the front or anterior side of the body or a structure. In humans, it's the side where the belly is located.

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Superior: Refers to a position higher up or above another structure in the body. For example, the head is superior to the neck.

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Superior: Refers to a position higher up or above another structure in the body. For example, the head is superior to the neck.

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Inferior: Refers to a position lower down or below another structure in the body. For example, the feet are inferior to the knees.

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Prone: Refers to lying face down on the stomach.

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Prone: Refers to lying face down on the stomach.

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Supine: Refers to lying face up on the back

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Supine: Refers to lying face up on the back

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Medial: Refers to a position closer to the midline or center of the body. For example, the nose is medial to the eyes.

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Medial: Refers to a position closer to the midline or center of the body. For example, the nose is medial to the eyes.

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Lateral: Refers to a position farther from the midline or center of the body. For example, the ears are lateral to the nose.

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Anatomical Position: A standard position of the body used as a reference in anatomical terminology; the body is standing upright, facing forward, with arms at the sides and palms facing forward.

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Anatomical Position: A standard position of the body used as a reference in anatomical terminology; the body is standing upright, facing forward, with arms at the sides and palms facing forward.

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Distal: Refers to a position farther from the point of attachment or origin. For example, the fingers are distal to the wrist. Proximal: Refers to a position closer to the point of attachment or origin. For example, the elbow is proximal to the wrist.

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Distal: Refers to a position farther from the point of attachment or origin. For example, the fingers are distal to the wrist. Proximal: Refers to a position closer to the point of attachment or origin. For example, the elbow is proximal to the wrist.

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Midsagittal Plane: A vertical plane that divides the body into equal right and left halves.

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Midsagittal Plane: A vertical plane that divides the body into equal right and left halves.

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Transverse Plane: A horizontal plane that divides the body into upper (superior) and lower (inferior) parts.

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Transverse Plane: A horizontal plane that divides the body into upper (superior) and lower (inferior) parts.

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Frontal Plane: A vertical plane that divides the body into anterior (front) and posterior (back) parts. Also known as the coronal plane.

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Frontal Plane: A vertical plane that divides the body into anterior (front) and posterior (back) parts. Also known as the coronal plane.

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Flexion: The action of decreasing the angle between two body parts. For example, bending the elbow decreases the angle between the upper arm and forearm.

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Flexion: The action of decreasing the angle between two body parts. For example, bending the elbow decreases the angle between the upper arm and forearm.

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Extension: The action of increasing the angle between two body parts. For example, straightening the elbow increases the angle between the upper arm and forearm.

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Extension: The action of increasing the angle between two body parts. For example, straightening the elbow increases the angle between the upper arm and forearm.

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Pronation: The rotation of the forearm or hand so that the palm faces downward or backward. Also refers to the foot's movement where the arch flattens and the foot rolls inward.

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Pronation: The rotation of the forearm or hand so that the palm faces downward or backward. Also refers to the foot's movement where the arch flattens and the foot rolls inward.

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Supination: The rotation of the forearm or hand so that the palm faces upward or forward. Also refers to the foot's movement where the arch is raised and the foot rolls outward.

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Supination: The rotation of the forearm or hand so that the palm faces upward or forward. Also refers to the foot's movement where the arch is raised and the foot rolls outward.

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Elevation: The movement of a body part upward. For example, shrugging the shoulders elevates them.

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Elevation: The movement of a body part upward. For example, shrugging the shoulders elevates them.

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Depression: The movement of a body part downward. For example, lowering the shoulders depresses them.

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Depression: The movement of a body part downward. For example, lowering the shoulders depresses them.

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Internal Rotation: The rotation of a body part toward the midline of the body. For example, rotating the shoulder inward.

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Internal Rotation: The rotation of a body part toward the midline of the body. For example, rotating the shoulder inward.

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External Rotation: The rotation of a body part away from the midline of the body. For example, rotating the shoulder outward.

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External Rotation: The rotation of a body part away from the midline of the body. For example, rotating the shoulder outward.

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Circumduction: A circular movement of a body part, such as a limb or the eye, where the end of the body part traces a circular path while the other end remains relatively fixed.

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Circumduction: A circular movement of a body part, such as a limb or the eye, where the end of the body part traces a circular path while the other end remains relatively fixed.

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Plantar Flexion: The movement of the foot where the toes point downward, away from the leg. For example, standing on tiptoe.

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Plantar Flexion: The movement of the foot where the toes point downward, away from the leg. For example, standing on tiptoe.

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Dorsiflexion: The movement of the foot where the toes point upward, towards the leg. For example, lifting the toes towards the shin.

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Dorsiflexion: The movement of the foot where the toes point upward, towards the leg. For example, lifting the toes towards the shin.