Archive image from page 158 of Directions for laboratory work in Directions for laboratory work in physiology for the use of medical students directionsforlab00lomb Year: 1914 TI-IE KNJiE-JERK. 129 EXPERIMENT XXVI. The Knee-jerk as Modified by Reenforcing and Inhibit- ing Influences. If a blow be struck on the ligamentum patellae when the lower leg is in a position that puts the ligament under slight Fig. 27. Diagram of nervous paths followed by the nerve impulses causing tlie knee-jerk and its reenforcements. A, hammer placed to strike ligamentum patellae ; B, quadriceps muscle ; C, post
Archive image from page 158 of Directions for laboratory work in Directions for laboratory work in physiology for the use of medical students directionsforlab00lomb Year: 1914 TI-IE KNJiE-JERK. 129 EXPERIMENT XXVI. The Knee-jerk as Modified by Reenforcing and Inhibit- ing Influences. If a blow be struck on the ligamentum patellae when the lower leg is in a position that puts the ligament under slight Fig. 27. Diagram of nervous paths followed by the nerve impulses causing tlie knee-jerk and its reenforcements. A, hammer placed to strike ligamentum patellae ; B, quadriceps muscle ; C, posterior spinal nerve root; D, motor cell in anterior horn of gray matter of lumbar cord; E, anterior spinal nerve root; F, sensory nerve from other leg; G, commisural cell; H, descending path from leg area in cerebral cortex; I, descending path from arm area in cerebral cortex; J, motor nerve to arm.
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