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These terms come from Latin words with similar meanings, ab-being the Latin prefix indicating ' away ', ad-indicating ' toward ', and ducere meaning ' to draw or pull '. [b] Abduction is a motion that pulls a structure or part away from the midline of the body, carried out by one or more abductor muscles.
Torsion of a square section bar Example of torsion mechanics. In the field of solid mechanics, torsion is the twisting of an object due to an applied torque [1] [2].Torsion could be defined as strain [3] [4] or angular deformation [5], and is measured by the angle a chosen section is rotated from its equilibrium position [6].
This type of torsion is the most common cause of acute scrotal pain in boys ages 7–14. Its appearance is similar to that of testicular torsion but the onset of pain is typically more gradual. Palpation reveals a small firm nodule on the upper portion of the testis which displays a characteristic "blue dot sign". This is the appendix of the ...
Meaning [1] Latin (or Neo-Latin) origin [1] a.c. before meals: ante cibum a.d., ad, AD right ear auris dextra a.m., am, AM morning: ante meridiem: nocte every night Omne Nocte a.s., as, AS left ear auris sinistra a.u., au, AU both ears together or each ear aures unitas or auris uterque b.d.s, bds, BDS 2 times a day bis die sumendum b.i.d., bid, BID
Testicle: an infarction of a testicle is commonly caused by testicular torsion and may require removal of the affected testicle(s) if not undone by surgery quickly enough. [14] Ultrasound of segmental testicular infarction. Infarct area shown as hypoechoic and avascular upper segment of R testis.
An x-ray image of a spiral fracture to the left humerus (upper arm bone) of a 27-year-old male. The injury was sustained during a fall. A spiral fracture (a.k.a. torsion fracture) is a bone fracture occurring when torque (a rotating force) is applied along the axis of a bone. [1]
Torsion fracture or spiral fracture, a bone fracture when torque is applied; Organ torsion, twisting that interrupts the blood supply to that organ: Splenic torsion, causing splenic infarction; Ovarian torsion; Testicular torsion; Penile torsion, a congenital condition; Torsion of the digestive tract in some domestic animals: Torsion, a type of ...
Pigeon toe, also known as in-toeing, is a condition which causes the toes to point inward when walking.It is most common in infants and children under two years of age [1] and, when not the result of simple muscle weakness, [2] normally arises from underlying conditions, such as a twisted shin bone or an excessive anteversion (femoral head is more than 15° from the angle of torsion) resulting ...