Lenz's law says the induced current is in a direction to opposite the change in field, not necessarily the field itself. If the field created by the outer loop is getting stronger, the induced current will be in the opposite direction as the current in the outer loop.
through the trochlea by means of a sliding action with the central fibers undergoing the maximum excursion. [Key words: Superior oblique, trochlea.] Ophthalmology 89: 124-133, 1982 The trochlea is a complex structure attached to the bony orbit at the trochlear fossa (or trochlear spine) located near the junction of the superior and medial orbital rim.1 The function of the trochlea is to redirect the superior oblique tendon so that it pulls in an anterior direction along a line approximately 55Â° nasal to the saggital plane. 2 The trochlea is not readily acÂ­ cessible from the usual transconjunctival approach to the extraocular muscles. This is because the trochlea
As the longest nerve, as well as the nerve with the smallest diameter, the trochlear nerve is also the only nerve to exit the brain dorsally, or from the top and posterior (back) of the brain. The term trochlear nerve comes from the Latin word trochlea, which means pulley..It is responsible for innervating the superior oblique muscle of the eye, which acts as a sort of a pulley system. The superior oblique muscle allows the eye to move toward the midline of the body and downward simultaneously.In other words, using the superior oblique muscles will cause the eyes to become crossed.. If the trochlear nerve is harmed, a condition called trochlear nerve palsy (or fourth nerve palsy) may result.This condition causes the affected eye to rotate upwards and towards the midline when the person is looking straight ahead.f the trochlear nerve is harmed, a condition called trochlear nerve palsy (or fourth nerve palsy) may result. This condition causes the affected eye to rotate upwards and towards the midline when the person is looking straight ahead.