Plantar Reflex Check this reflex in a classmate by using the blunt metal end of a reflex hammer and gently stroking the sole of the foot from the heel, distal on the lateral aspect of the forefoot then curving towards the hallux. What was the result? Was it a normal response or a Babinski’s sign?

Central pattern generators (CPGs) are found at the segmental level of motor control. (a) What is the job of the CPGs? (b) What controls them, and where is this control localized?

Background:  A doctor conducted a patellar tendon (aka knee jerk - covered in lecture, assigned reading, and laboratory) reflex test on a patient. To do so, she tested the patient's knee-jerk reflex by hitting the patient's patellar tendon with a rubber hammer.For this patient, the doctor observed that hitting the tendon caused no knee jerk reflex at all, even after many attempts.Normally, a patient will kick her lower leg after the hammer hit on the tendon.However, the doctor could stimulate contraction of the quadriceps leg muscles using a stimulating electrode that applied a voltage across the muscle. The doctor, with further analysis, determined that the receptor membranes of the stretch receptors were operating correctly.To do this, she carefully inserted an electrode into a stretch receptor's membrane, near to the location on the membrane where receptor  proteins are located. She measured a change in voltage while hitting the tendon with the hammer. With further testing, the…