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Abduction is
A movement that increases the angle between two bones at the joint
A movement in the opposite direction that uncrosses the radius from the ulna
A movement that results in the part moving away from the midline
A movement that results in the part moving toward the midline
Answers (1)
Types of Movements According to Muscle Contraction -
Common types of movement that result from muscle contraction include:
1. Flexion – A movement that decreases the angle between two bones at the joint.
2. Extension – A movement that increases the angle between two bones at the joint. However, if the angle goes past 180o (a straight line) in the direction opposite the flexion movement is called hyperextension.
3. Rotation – Rotation is a movement that results in movement of one bone around its longitudinal axis.
4. Abduction – A movement that results in the part moving away from the midline.
5. Adduction – A movement that results in the part moving toward the midline.
6. Supination and pronation – These movements apply to the forearm. Pronation is the rotation of the radius across the ulna that results is your palms facing backwards. Supination is a movement in the opposite direction that uncrosses the radius from the ulna to cause the palms to face forward.
7. Inversion and eversion – These movements also apply only to the feet. Inversion is when the feet turn inward so that the soles are facing one another. Eversion is when the feet turn outward so that your soles are facing laterally.
8. Opposition – This movement enables us to be skilful tool users. The opposition is the movement of the tip of the thumb that enables it to touch the tips of the other fingers.
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Abduction – A movement that results in the part moving away from the midline. Hence the correct option is c
A movement that results in the part moving away from the midline
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