132 Glossary 



•Ad'ipose. [L. adeps, fat.] Fatty. 



.Adre'nal. [Ad. + L. renes, kidneys.] Situated on the kidneys. 

 -Adre'nalin. The secretion of the adrenal glands. 



-Afferent. [Ad. + L. jerre, to bear, carry.] Conducting towards the brain or cord. 

 Alve'olar. [L. alveolus, a pit or cavity.] Having a honey-comb structure. 

 Ame'boid. Like an ameba (a unicellular animal). 

 Anab'olism. [G. ana. up ; ballein, to throw.] The building up of more complex 



chemical substances out of less complex. 

 Anas"tomo'sis. [G., an opening.] The union, or " opening into each other," of two 



cells, or other structures. 

 Ante'rior. [L.] Situated in front of, or nearer the head than. 

 An"isotrop'ic. [G. anisos, unequal ; trepein, to turn.] Not isotropic ; g. v. 

 An'trum, an'tra. [L., a cavity.] A sinus in a bone, especially the sinus in the supe- 

 rior maxillary (cheek) bone. 

 Arach'noid (arak'noid). [G. arachne, a spider.] Spider-web like in fineness. 

 Are'olar. [L. areola, a little area, little open space.] Having the form of a net-work. 

 Arrec'tor, arrecto'res. [L. arngere, to erect.] Muscles which erect (the hair). 

 Aut"ono'mic. [G. autos, self; nemein, to distribute.] Independent, or self-governing. 



As applied to the splanchnic nervous system, the term is misleading. 

 Ax'on (sometimes improperly sounded axo'n). [G. axios, axis.] The "principle 



fiber " of a nerve cell. 

 ^Blast-, blasto-, -blast. [G. blastos, a germ.] A word-part usually meaning " the germ 



of ", " that which is to be ", or " that which is to make " something indicated 



by the remaining part of the word. 

 IBlast'ula, -ae. [G., a little germ.] The embryo in the stage succeeding the morula. 

 Blas'toderm. [Blasto -f G. derma, a skin.] The first cell-layer of the blastula. 

 IBra'chium, -chia (bra'kium). [L., the upper arm.] A structure resembling an arm, 



i. e., a more or less elongated structure by which one organ " holds on to " (is 



attached to) another. 

 Tiul'bar. Pertaining to the bulb (». e., the medulla oblongata). 

 Cae'cum, -ca (see'kum, -ka). [L. caecus, blind.] The blind (>'. e., open at one end 



only) pouch of the large intestine. 

 •Can"alic'ulus, -uli. [L.] A canalicule, or little canal. 

 •Callo'sum. [L.] Hard. 



Or'diac. [G. kardia, heart.] Pertaining to the heart. 

 Carot'id. [G, fr. Karos, stupor.] One of the arterial trunks supplying the brain ; 



so-called because pressure on it was supposed to produce stupor. 

 Car'tilage. [L. cartilago.~\ Gristle. 



•Cauda'tum. [L.] Having a tail, or tail-like appendage. 

 Centralis. [L.] Central. 

 Cen'trosome. [G. kentron, center; soma, body.] The (supposed) center of activity 



in cell division. 

 Cer"ebel'lum. [L., the little brain.] The smaller of the two large structures attached 



to the brain stem. 

 Cer'ebrum. [L., the brain.] The hemispheres together. 

 Cer"ebrospi'nal. Pertaining to the brain and cord together or indifferently. 

 Cer'vical. [L. cervix, neck.] In the region of the neck. 



•Chi'asm (ki'asm). [G. chiasmos, fr. the letter chi, .v.] An x-like crossing or decus- 

 sation. 



