. Practical electricity in medicine and surgery. n causes projection of the face, withelevation of the chin and bending of the cervical spine. The trapezius muscle is easily stimulated to contraction byplacing the electrode over the external branch of the spinalaccessory nerve, which can be readily reached from a point nearthe insertion of the sterno-cleido-mastoid, running over theupper portion of this muscle, and outward toward the shoulder,as shown in Fig. 138. MOTOR POINTS OF NECK AND BACK. 173 The effect of bilateral stimulation is shown in Fig. shoulders are raised and the scapul
. Practical electricity in medicine and surgery. n causes projection of the face, withelevation of the chin and bending of the cervical spine. The trapezius muscle is easily stimulated to contraction byplacing the electrode over the external branch of the spinalaccessory nerve, which can be readily reached from a point nearthe insertion of the sterno-cleido-mastoid, running over theupper portion of this muscle, and outward toward the shoulder,as shown in Fig. 138. MOTOR POINTS OF NECK AND BACK. 173 The effect of bilateral stimulation is shown in Fig. shoulders are raised and the scapulas drawn toward thespine. The skin of the neck is thrown into large folds. The levator anguli scapulae is supplied by a branch fromthe fourth cervical nerve, which can be isolated with a fineelectrode a little below the motor point for the : To raise the inner angle of the scapula, and draw itinward and forward. The superior and inferior clavicular spacesare converted into deep sulci and the clavicle rendered Fig. 151.—Bilateral Contraction of the Trapezius Muscles. The sternothyroid, omo-hyoid, and sterno-hyoid may bereached at the anterior border of the sterno-cleido-mastoid nearits middle. The two latter can also be stimulated between thetwo points of origin of the sterno-cleido-mastoid muscle. The phrenic nerve is found at the outer border of the sterno-cleido-mastoid, in front of the scalenus anticus and above theomo-hvoid. Effect: Rapid contraction of the diaphragm, pro-jection of the belly, and forcible inspiration. As faradizationof the phrenic nerve is a recognized procedure in suspended 174 PRACTICAL ELECTRICITY IN MEDICINE AND SURGERY. respiration, it is important that it should be frequently practicedin order that the method may be familiar should the physicianbe suddenly required to employ it. The electrodes (bilaterally)should be pressed inward firmly behind the clavicular portionof the sterno-cleido-mastoid. The isolated ele
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectelectri, bookyear1890
