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A direct hit to the collarbone will also cause a break. In most cases, the direct hit occurs from the lateral side towards the medial side of the bone. The most common site of fracture is the junction between the two curvatures of the bone, which is the weakest point. [11]
It is most often fractured in the middle third of its length which is its weakest point. The lateral fragment of the clavicle during a fracture is depressed by the weight of the arm and is pulled downward by the strong abductor muscles of the shoulder joint, especially the deltoid.
Statue of Achilleas Thniskon (Dying Achilles) at the Corfu Achilleion.An Achilles' heel [1] (or Achilles heel [2] [3]) is a weakness despite overall strength, which can lead to downfall.
The pterion is the region where the frontal, parietal, temporal, and sphenoid bones join. [1] It is located on the side of the skull, just behind the temple.It is also considered to be the weakest part of the skull, which makes it clinically significant, as if there is a fracture around the pterion it could be accompanied by an epidural hematoma.
The point where the blade of a sword joins the tang was a recognized weak point. The tang was often made of malleable iron and forge-welded to the steel of the blade. A wider blade at this point of transition, such as is seen in the colichemarde, may have been viewed as offering a stronger union.
An established threat made with the extended arm. A point-in-line is a static threat, created by one fencer by extending the weapon and arm prior to any actions in a phrase. In foil and sabre, a point-in-line has right of way, therefore, if the line is not withdrawn, any attack launched by the opponent does not have right of way.
Weakness is a symptom of many different medical conditions. [1] The causes are many and can be divided into conditions that have true or perceived muscle weakness. True muscle weakness is a primary symptom of a variety of skeletal muscle diseases, including muscular dystrophy and inflammatory myopathy.
In psychophysics, sensory threshold is the weakest stimulus that an organism can sense. Unless otherwise indicated, it is usually defined as the weakest stimulus that can be detected half the time, for example, as indicated by a point on a probability curve. [1] Methods have been developed to measure thresholds in any of the senses.