DRAIN 



233 



BRAN 



Superior Aspect, or Convexity of the Brain. 

 i,i. Fissure of Rolando. 2,2. Ascending frontal convolution. 3, 3. As- 

 cending and superior parietal convolutions. 4, 4. First frontal con- 

 volution. 5,5. Second frontal. 6,6. Third frontal. 7,7. First occi- 

 pital. S, 8. Second occipital. 9, 9. Third occipital. 10. Anterior 

 extremity of corpus callosum. 11, 11. 1'osterior extremity. 



Abdominal. See .V /• uts. B., After-. 

 See .1/ ' a phalon. B. Axis, that portion 

 of tin- brain substance including tin- island 

 of Reil, th< i. pons, 



medulla, and cerebellum. B. -bladder, a 

 cerebral vesicle of tin- embryo. B., Com- 

 pression of, ma_\ arise from injury .,1 1 

 ease, from sudation, blood extrava- 



sation, etc. See ( mpi ion. B., Con- 

 cussion of, i- tin- result of injury produi 

 symptoms "i loss of power and function 

 generally. See Concussion. B. -fag, mental 

 exhaustion due to overwork. B. Fever 

 Sec Meningitis; also Synonym of Typhoid 

 B., Fore-. See Prosencephalon. 

 B., Hind-. See Epencephalon. B., In- 

 callosal, one in which there is a complete 

 absence of the coqxt- callosum. '11 



imonl) associated with mental and physi 

 cal weakness, amounting often to idiocy. 

 B., Inter-. See Dient phalon. B., Irri- 

 tation of, follows injur\-, and is marked by 

 symptoms of irritability and often bj 

 vulsive phenomena. B., Little, the cere- 

 bellum. B. -mantle, that portion of the 

 brain-substance including the convolutions, 

 corpus callosum, and fornix. B., Mid-. 

 See Mesencephalon. B.-pan, the cranium. 

 B., Railway, a neurosis sometimes occur- 

 ring in those who ride constantly on railway 

 trains. It is characterized by anesthesia, 

 or spinal hyperesthesia, insomnia, paresis, 

 etc. B. Sand, a gritty mineral mattei 

 found in and about the pineal gland, 

 sisting mainly of calcium and magnesium 

 carbonates and phosphates. In function i- 

 not known. B. -shake. Synonym of //., 

 Concussion of. B.-stem, the pons, me- 

 dulla, and crura cerebri. B. -storm, a 

 succession of sudden and severe phenomena, 

 due to some cerebral disturbance. B.-tire, 

 a condition of brain-exhaustion due to ex- 

 cessive functional activity. See B.-fag. 

 B.-wave, the supposed telepathic vibra- 

 tion of a " mentiferous ether," by which 

 thoughts and impressions may be transferred 

 from one person to another. B.-wax. 

 See Cephalot. 



Brainard's Operations. See Operati 

 Tabic of. 



Bramah's Apparatus. An apparatus by 

 which water may be charged with < '< •.. by 

 the continuous method. 



Bramble \bram' -bl). See Rubus. 



Bran [bran) [MIL., bran"]. The epidermis 

 or outer covering of the seeds of most 

 cereals. It contains woody matter 35, starch 

 22, albumin and gluten 13, water 12. gum 

 8, other matter-, including a small amount 

 of silica. 10 per cent. it contain-, a 

 diastatic ferment that converts the starch 

 into dextrin. B. Bath. See Bath. 

 B. Tea, a decoction of bran, used in 

 coutdi-. 



Inferior Aspect of the Brain. 

 1. Anterior extremity of corpus callosum. 2. Optic chiasm. 3. Tuber 

 cinereum and infundibulum. 4. Corpora albicantia, or mamillaria. 

 5. Pons varolii. 6. Third nerve. 7. Aqueduct of Sylvius. 8. Testes. 



10. Inferior surface of frontal lobe. 11. Convolution of the fissure of 



Sylvius. 12. Olfactory nerve. 13. Third convolu- 

 tion mi inferior surface of frontal lobe. 14. Fourth 

 convolution. 15. Third convolution ol extei 

 surface of frontal lobe. 16. External border ol 

 •rior lobe. 17. Sphenoidal extremity. 18. Oc- 

 cipital extremity. 1 .. Hippocampal convolution. 

 20. External convolution of posterior lobe. 21. 

 Middle convolution. 22. Internal convolution. 23. 

 Gyrus fornicatus. 



