138 Glossary 



Parot'id. [G. parotis, from para, near; ot, the ear.] Applied to the gland situated 

 near the ear. 



Pedunc'ulus, -uli. [L., a little foot.] The peduncle ; stalk or leg-like process by 

 which an organ is connected with another. 



Pel'vis, -ves. [L., a basin or bowl.] The bony-walled lower cavity of the body. 



Peri-. [G.] A prefix meaning around ; equivalent to circum-. 



Per"imys'ium, -ia. [.Peri -f- G. mys, muscle.] The outer wrapping of muscle bundles. 



Per"ineu'rium, -ria. {Peri + G. neuron.'] The wrapping of the nerve funiculus; 

 less inclusive, therefore, than the epineurium. 



Per"itone'um. {Peri -\- G. teinein, to stretch.] The membrane " stretched over " the 

 viscera, and lining the abdominal cavity. 



Phar'ynx, -ynges. [G., the throat.] The common cavity into which open the na al 

 cavities, the larynx, and the gullet. 



Pharyn'geal. 



Pi'a. [L.] Literally soft or gentle. 



Pin'eal (sometimes pronounced pi'neal). [L. pinca, a pine-cone.] Cone-shaped. 



Pit'uitary (often incorrectly called pitu'itary). [L. pitui'ta, phlegm or mucus.] The 

 pituitary body was supposed to secrete mucus. 



Plastid. [G. plasma."] Originally a name for the cell ; now for a certain unit within 

 the cell, supposed to be the center of chemical activity. 



Plasm. [G. plasma, an image of clay or wax, etc. ; hence a thing moulded, or a 

 form or manner.] Through the word protoplasm, originally the first form of 

 living material, then living material in its least specialized form, plasm has 

 come to be a word-part meaning living stuff of the form indicated by the re- 

 mainder of the word. 



Plex'us, -uses. [L., an interweaving.] An interwoven or interlaced mass of nerve 

 fibers or strands of blood-vessels. 



Pneumogas'tric. [G. pneumon, lung; gaster, stomach.] Pertaining to functions of 

 digestion and respiration. 



Pons (ponz). [L.] Literally, a bridge. 



Ponto-. A prefix meaning pontile ; pertaining to or connected with the pons. 



Pro'prius, a, um. [L., proper; pertaining to itself, or oneself.] 



Pro"priocep'tor. [L. proprius, self; capere, to take.] A receptor for the body, as 

 opposed to the viscera, and as opposed to external objects. 



Pros"enceph'alon. [G. pros, before, encephalon, brain.] The fore-brain. 



Pro'toplasm. [G. protos, first; plasma, form.] See plasm. 



Pseudopo'dium, -dia. [G. pseudes, false ; pous, foot.] A false foot, i. e., leg-like 

 process. 



Pulvi'nar. [L. pulvinus, a cushion, pillow.] A pad or cushion-like prominence. 



Pylo'rus. [G. pylorus, a gate-keeper.] The gate or opening between stomach and 

 intestines. 



Quadrigem'ina. [L., four-fold.] Applied only to the four corpora of the mid-brain. 



Rac'emose. [L. racemus, a bunch of grapes.] Arranged in a cluster. 



Ra'mus. [L.] A branch. 



Ranvier. Proper name, French. 



Recep'tor. [L. recipere, to receive.] The cell which receives the stimulus from 

 without. 



Re'flex (obsolete pronunciation, reflex')- [L- reflectere, to bend or turn back.] Ap- 

 plied to the nerve-current redirected from the centers. 



