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Lateral (from Latin lateralis 'to the side') describes something to the sides of an animal, as in "left lateral" and "right lateral". Medial (from Latin medius 'middle') describes structures close to the midline, [2] or closer to the midline than another structure. For example, in a human, the arms are lateral to the torso.
Movements of the shoulder joint. [1] Movement Muscles Origin Insertion Flexion (150°–170°) Anterior fibers of deltoid: Clavicle: Middle of lateral surface of shaft of humerus: Clavicular part of pectoralis major: Clavicle Lateral lip of bicipital groove of humerus Long head of biceps brachii: Supraglenoid tubercle of scapula
Inversion and eversion are movements that tilt the sole of the foot away from (eversion) or towards (inversion) the midline of the body. [35] Eversion is the movement of the sole of the foot away from the median plane. [36] Inversion is the movement of the sole towards the median plane. For example, inversion describes the motion when an ankle ...
External rotation (or extorsion or lateral rotation) is an anatomical term of motion referring to rotation away from the center of the body. The external rotator muscles include: Muscles
The type of movement that can be produced at a synovial joint is determined by its structural type. Movement types are generally paired, with one being the opposite of the other. Body movements are always described in relation to the anatomical position of the body: upright stance, with upper limbs to the side of body and palms facing forward. [11]
An anatomical plane is a hypothetical plane used to transect the body, in order to describe the location of structures or the direction of movements. In human and non-human anatomy, three principal planes are used: The sagittal plane or lateral plane (longitudinal, anteroposterior) is a plane parallel to the sagittal suture. It divides the body ...
A gait is a manner of limb movements made during locomotion. [1] Human gaits are the various ways in which humans can move, either naturally or as a result of specialized training. [ 2 ] Human gait is defined as bipedal forward propulsion of the center of gravity of the human body, in which there are sinuous movements of different segments of ...
There are many mechanisms in the body that are suggested to control this movement, e.g. a spring action in muscles, higher control from the nervous system or core muscles. Although the posture is not dangerous in itself, there are pathologies associated with prolonged intervals of unrelieved standing.