SUBJECT INDEX 



303 



Pars distalis of pituitary, 22, 34, 36, 

 40,41,42,43,44, 157,255 

 {see also Adenohypophysis) 

 Pars ganglionaris X organi, 25 {see 



also Ganglionic-X-organ) 

 Pars intermedia of pituitary, 



as source of hormone, 94, 103, 



104, 106, 106, 107, 157 

 structure of, 22, 34, 36, 40, 41, 

 42, 43 

 Pars nervosa (neural lobe of pitui- 

 tary), 34, 35ff., 36, 37, 40fn., 

 42, 43, 48 {see also Neurohy- 

 pophysis) 

 Pars tuberalis of pituitary, 



as source of hormones, 87, 103, 

 104, 104, 105, 106, i57,24i, 

 245 

 regeneration of, 245 

 structure of, 22, 34, 36, 40, 41, 

 42,43 

 Parturition, 64, 65, 65, 152 

 Pepsin secretion, 119, 120 

 Peptones, 123, 125, 125, 126, 156 

 Periodic-acid Schiff reaction, 44 

 Pericardial organs, 22, 25, 29, 57, 

 58, 59, 156 

 extracts of, 59, 60 

 Perirenal organ, 50 

 Peristalsis, 58, face 62, 62, 63, 155 

 Peritracheal glands, 135ff. 

 Permeability of cell membranes, 

 decrease in, 208, 219, 220ff. 

 increase in, 208, 228ff. {and see 



Pores, ultramicroscopic) 

 of chromatophores, 74 

 of kidney tubules, 214, 233ff., 



234, 235ff., 238 

 of skin, 226, 230, 231, 232 

 Pharynx, glands of, 44, 46, 46, 47, 



48, 49, 173 

 Phasmida {see Carausius) 

 Phenylalanine, 125 

 Phosphates, 



and moulting, 249ff. 



Phosphates, 



and parathyroids, 142, 251ft"., 256 



balance of, 241, 249ff., 247 



in blood, 254, 255 



metabolism of, 142, 240, 249 

 Phospholipids, 43, 187 

 Phosphoric hexose esters, 197, 250 

 Phosphorus turnover, 117 

 Phosphorylation, 177, 196ff. 

 Physiological colour change {see 



Colour change) 

 Pigeon's milk, 130 

 Pigment granules, 73ff., 75, 77, 

 79ff., 82ff., 108 



black, 74, between 82 and 83, 83, 

 97ff., 98 



blue, 83 



concentration of, 73ff., 79, 83, 

 88ff. 



dispersal of, 73fr., 79, 83, 91ff. 



in epidermal cells, 74ff., 75, 158 



in mesodermal cells, 102 



in retinal cells, 77ff., 78, 81 



movements of, 73, 74, 80, 82ff. 



red, 74, face 82, 83, 86ff., 98 



reflecting, 83 



under pressure, 74 



white, 77, 83, 94ff., 96 



yellow, 83 



yellow-green, 74, 75 



{see also Chromatophores) 

 Pigment-concentrating hormone of 



Penaeus, 90 

 Pigmentary effectors, 56, 71, 73ff., 



87, 107ff., 152ff. 

 Pineal organ {see Epiphysis) 

 Pitocin, 237 

 Pitressin, 237 

 Pituitary body, 34, 36, 48, 245 



anterior lobe of, 40ff., 40fn. {and 

 see Adenohypophysis) 



extracts of, 104, 199 



posterior lobe of, 33ff., 104 {and 

 see Neurohypophysis) 

 Pituitary gland, 42 



