1578 



SUBJECT INDEX 



Placenta (cont.) 

 source (cont.) 

 of relaxin, 976 

 of somatotrophin, 981 

 spongiotrophoblastic zone in rat 

 histology, 913 



role in protein sj-nthesis, 913 

 site 



of gonadotrophin production, 931-937 

 of steroid production, 930-931 

 structure 

 in man, 891-892, 894 

 in monkey, 886, 891-892, 894 

 surface area, 944, 946 

 sj'ncytium 



"^ and steroid production, 930-931 

 comparison with nephron, 899-900 

 lipid droplets in, 930, 936 

 origin, 936-937 

 physiologic role, 936-937 

 protein synthesis in, 895 



site of steroid synthesis, 886-887, 892-893, 896 

 transhvdrogenase in, 651 

 trophol.hi.-^tic labyrinth in rat, 1078-1079 

 Placental liarrier 



changes with age, 947 

 definition, 908 

 layers, 899 

 in cat, 916 



in pig, 896, 900-901, 916, 932-933 

 lipids in, 942 

 Placental enzymes, mechanism of estrogen action, 



656-657 

 Placental gonadotrophins, 982-986 



origin in horse, 937 

 Placental histochemistry, 922-930 



cytoplasmic basophilia, significance, 937 

 cytotrophoblast, ground substances, 905 

 decidua, matrix, 900-901, 904, 905 

 decidual cells, distinction from peripheral 



trophoblasts, 905 

 Langhans cells, succinic dehydrogenase in, 895, 



910-911 

 liijid droplets, 892-893, 896, 923-925, 928-929, 



938-939, 940-941, 948-949 

 maternal decidua, 905, 924-925, 926 

 metachromasia, indicator of mucoid degenera- 

 tion, 900 

 peripheral cytotrophoblast, "fibrinoid" (ground 



substance), 890, 904, 926 

 peripheral trophoblasts, 890, 900-901, 903-907, 

 910-911, 920-921, 926 

 distinction from decidual cells, 905 

 spongiotrophoblast in rat, 913 

 stroma of villi, 886-887, 892-893, 898, 900-901, 



906-907, 910-911, 926 

 syncytium, 886-887, 890, 892-893, 895-897, 900- 

 901, 906-907, 910-911, 914-915, 926 

 acetylcholine, 897 

 acid' phosphatase, 896-897, 914-915 

 alkaline phosphatase, 886-887, 896, 914-915 

 cytochrome oxidase-cytochrome c system, 897 

 esterase, 897, 910-911 

 glycogen in, 895 



lipids, 886-887, 892-893, 895, 896, 910-911 

 PAS-positive substances, 895-896, 906-907, 926 

 phospholipids, 899, 900-901 

 ribonucleic acid in, 886-887, 890, 895 

 succinic dehydrogenase in, 895, 910-911 

 sulfhydryl groups in, 895, 910-911 

 Placental histology, 884-885, 886-887, 891-892, 909- 

 914 

 basal plate, 903, 918-919 

 basal zone, 892 



Placental histology (cont.) 



chorionic yilli, epithelial plates, 892-893, 899, 

 900-901, 924-925 



cytotn)])hol)lasts, 886-887. 891 



decidua l.asalis, 892 



decidual cells, 892 



Langhans cells, 890, 891, 892,894,910-911,912,926 



paraplacental border, 912 



peripheral cytotrophoblast, 884-887 



"fibrinoid'' (ground substance), 890, 898, 903, 

 904, 920-921, 926 



peripheral trophoblasts, 891 



placental barrier, 894 



septae placentae, 903, 918-919 



stratum compactum, 892 



stratum spongiosum, 892 



stroma of yilli, 886-887, 890, 892-893, 897-898, 

 900-901, 906 907, 926 

 Hofbauer cells, 892-893, 898, 900-901, 926 



syncytium, 890, 892-893, 894-897, 899, 900-901, 

 906-907, 912, 924-925 

 mitochondria, 896, 899 



trophoblastic cell columns, 890, 891 

 Placental permeability, 943-950 



gestation age and, 917, 943 



placental type and, 943-950 



to ACTH, 1008 



to estrogens, 1006-1007 



to serum gonadotrophin, 478 

 Placental lilxiiiuclcoprotein, significance, 937 

 Placental trausniission, 908 



numner of, 947-948 



pinocytosis and, 948, 950 

 Placental transport 



antibodies, 943-944 



proteins, 943-944 



sodium, 944 

 Placental types 



comparative, 915-916 



endothelinchorial, 908, 914 



epitlM'liociiniial, 908 



Crosscrs cliissification, 908-909 



hem(.ch()ri;il, 908 



hemoendothelial, 908-909, 914 



syndesmochorial, 908 

 Placentophagy, 1312-1313 



hormonal basis, 1313 

 Plants 



dioecious types, 7 

 sex determination, 4 



hermaphroditic types, 7 



mutants, tabulation of, 4 

 Plasma binding of steroids, 475-476 



and hormone antagonisms, 476 



in pregnancy, 476 

 Plasma proteins during pregnancy, 993-994 

 PlaiydactyUis, pseudohermaphroditism, 1066 

 Plaiypoecilus 



effects of pregneninolone, 1053 



gonopodium in females, androgens and, 1046 



masculine behavior by female, androgen and, 

 1197 



paradoxical effects of estrogens, 1053 



sex chromosome variations, 46 



sex reversal in females, androgens and, 1067 



sperm storage in female, 1055 



spermatogenesis, estrogen-suppression of, 1053 

 Platypoecilus maculatus 



feminine behavior by male, 1179 

 sex determination, chromosomes and, 46 

 Platystacus, transport of developing ova, 1047 

 Play, monkeys, parental care and, 1359 

 Plectrophenax nivalis 



incubation, temporal relation to egg-laying, 1284 



