CONTENTS XX111 



CHAPTEE XCV 



PAGE 



THE MOTOR AREAS OF THE CEREBRUM AND THE EFFERENT PATHWAY TO SKELETAL 



MUSCLE 884 



The Motor Area of the Cerebral Cortex, 885; The Visuo-Motor Areas, 886; 

 The Efferent Pathway in the Brain and Cord, 888; Distribution of Efferent 

 Nerves, 890; Spinal Ecflexes, 891. 



CHAPTEE XCVI 



THE AUTONOMIC NERVOUS SYSTEM, OR THE EFFERENT PATHWAY TO SMOOTH MUS- 

 CLES AND GLANDS 893 



The Organization of Efferent Nerves to the Viscera, 893; The Double Inner- 

 vation of the Visceral Organs, 896; The Function of the Autonomic Nervous 

 System, 897; The Axon Eeflex, 898; Function of the Bulbo-sacral Divisions, 

 899 ; The Mechanism for Emptying the Bladder, 900 ; Function of the Thorac- 

 ico-Lumbar Division, 901 ; Effects of Impulses from the Viscera Upon Central 

 Nervous Activity, 902. 



CHAPTEE XCVII 



MUSCULAR CONTRACTION 904 



The Tonic Contraction of Skeletal Muscle, 905; Tetanic Contraction of 

 Skeletal Muscle, 906; The All or None Law, 908; Chemistry of Tetanic Con- 

 traction, 910; Smooth Muscle, 912. 



CHAPTEE XCV11I 

 POSTURAL COORDINATION 914 



Eeflex Adjustment of Tone, 914; The Posture of the Body as a Whole, 917; 

 Compensatory Movements of the Eyes, 918; Clinical Tests of Labyrinthine 

 Mechanism, 920; The Tendon Jerks, 921. 



CHAPTEE XCIX 



THE CENTRAL CONTROL OF POSTURAL EEACTIONS; THE CEREBELLUM 921 



The Influence of the Brain on the Local Tonic Eeflex, 924; Function of tl^ 

 Cerebellum, 926; Localization of Function in the Cerebellum, 929; Compensa- 

 tion for Cerebellar Injuries, 931. 



CHAPTEE 



THE INTEGRATION OF ACTION WITHIN THE EEFLEX ARC t);;;; 



The Eeceptors, 933; Summation, 934; Refractory Period, 934; Reciprocal 

 Inhibition, 937; Action of Strychnine and Tetanus Toxin on Beeiprocal In- 

 hibition, 941; The Eeflex Figure, 941; Eules for the Spread of Spinal Be- 

 flexes, 944. 



CHAPTEB CI 



THE INTEGRATION OF SIMULTANEOUS AND SUCCESSIVE BEFLEXES 945 



Principle of the Final Common Path, 945; Integration of Allied Eeflexes, 

 946; Integration of Antagonistic Eeflexes, 947. 



CHAPTEE CII 



THE INTEGRATIVE ACTION OF THE CEREBRUM . . . 951 



Eolation of the Cerebrum to the Distance Eeceptors, 952; Conditioned Be- 

 flexes, 954. 



