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Any extrinsic rotation is equivalent to an intrinsic rotation by the same angles but with inverted order of elemental rotations, and vice versa. For instance, the intrinsic rotations x-y’-z″ by angles α, β, γ are equivalent to the extrinsic rotations z-y-x by angles γ, β, α. Both are represented by a matrix
They constitute a mixed axes of rotation system, where the first angle moves the line of nodes around the external axis z, the second rotates around the line of nodes N and the third one is an intrinsic rotation around Z, an axis fixed in the body that moves.
In anatomy, internal rotation (also known as medial rotation) is an anatomical term referring to rotation towards the center of the body. Muscles
Motion, the process of movement, is described using specific anatomical terms.Motion includes movement of organs, joints, limbs, and specific sections of the body.The terminology used describes this motion according to its direction relative to the anatomical position of the body parts involved.
A sphere rotating (spinning) about an axis. Rotation or rotational motion is the circular movement of an object around a central line, known as an axis of rotation.A plane figure can rotate in either a clockwise or counterclockwise sense around a perpendicular axis intersecting anywhere inside or outside the figure at a center of rotation.
There are several examples of symmetry breaking that are currently being studied. One of the most studied examples is the cortical rotation during Xenopus development, where this rotation acts as the symmetry-breaking event that determines the dorsal-ventral axis of the developing embryo. This example is discussed in more detail below.
The core’s multi-decade rotational pattern “coincides with several important geophysical observations,” researchers wrote, including changes in the magnetic field and the length of the day ...
Earth's rotation; Improper rotation or rotoreflection, a rotation and reflection in one; Internal rotation, a term in anatomy; Optical rotation, rotation acting on polarized light; Rotation around a fixed axis; Rotational spectroscopy, a spectroscopy technique; Tree rotation, a well-known method used in order to make a tree balanced.