Center

(sen/-ter). The middle point of any surface or of a body. The ganglion or plexus whence i ue the nerves controlling a function. C, Accelerating, a probable center in the oblong at a sending accelerating fibers to the heart. They leave the cord through the rami com muni can tes of the lower cervical and upper six thoracic nerves, pa ing thence into the sympathetic. C, A no spinal, controls defecation; it is situated at the level of the and lumbar vertebrae; but for the coordinated activity it must remain in connection with the brain. C, Auditory, probably in the temporosphenoidal lobes, upon each side. C., Broca's. See C, Speech. C, Cardio inhibitory, in the oblong at a, carried by the vagus. C, Ciliospinal, connected with the dilatation of the pupil; it is in the lower cervical part of the cord. It controls the movements of the ciliary body. C, Convulsional, in the oblong at a, on the floor of the ventricle. C. for Closure of Eyelids, in the oblong at a, a part of the facial center. C, Coughing, in the oblong at a, above the respiratory center. C, Diabetic, in the posterior part of the anterior half of the floor of the ventricle, in the median line. C, Ejaculation, Budge's gen i to spinal center, lumbar vertebra (rabbit). C, Erection, is in the spinal cord, but is controlled from the oblong at a. C. for Mastication and Sucking, facial and hypoglo al centers. C. for Secretion of Saliva, on the floor of the ventricle. C, Gustatory and Olfactory, in the uncinate gyrus. C, Heat-regulating or Temperature, the center for the control of body-temperature. See Thermotaxis . C, Leg, in the ascending frontal convolution. C, Micturition, the vesico-spinal center of Budge, at the level of the lumbar vertebrae; coordination requires cerebral connection. C. of O ification, the place in bones at which o ification begins. C, Parturition, at the level of the and lumbar vertebrae. C, Respiratory, in the oblong at a, between the nuclei of the vagus and acce orius; called by Fluorens the Notud Vital, or Vital Point. C, Sensory, or Psycho sensorial Areas, occipital and temporosphenoidal lobes, probably the same as, or intimately a ociated with, the motor centers of the parts. C, Sneezing, same as for nerves for the muscles of expiration. C, Spasm, in the oblong at a, at its junction with the pons. C, Speech, in the third left frontal convolution in right-handed people. C, Swallowing, on the floor of the ventricle.