CA-NAL´ (L.). In the body, any tube or passage. CA-NINE´ (L. _canis_, a dog). Name given to the third tooth on each {254} side of the jaw; in the upper jaw it is also known as the eye-tooth: pointed like the tusks of a dog. CAP´IL-LA-RY (L. _capil´lus_, a hair, _capilla´ris_ hair-like). The name of the extremely minute blood-vessels which connect the arteries with the veins. CAR´BON DIOX-IDE (CO_{2}). Chemical name for carbonic acid gas. CAR-BON´IC A-CID. The gas which is present in the air expired from the lungs; a waste product of the animal kingdom, and a food of the vegetable kingdom. CAR´DI-AC (Gr. [Greek: kardia], _cardia_, the heart). The cardiac orifice of the stomach is the upper one, and is near the heart; hence its name. CAR-NIV´O-ROUS (L. _ca´ro_, flesh, and _vo´ro_, to devour). Subsisting upon flesh. CA-ROT´ID AR-TE-RY. The large artery of the neck, supplying the head and brain. CAR´TI-LAGE. A solid but flexible material, forming a part of the joints, air-passages, nostrils, etc.; gristle. CA´SE-INE (L. _ca´seus_, cheese). The albuminoid substance of milk; it forms the basis of cheese. CER-E-BEL´LUM (diminutive for _cer´ebrum_, the brain). The little brain, situated beneath the posterior third of the cerebrum. CER´E-BRUM (L.). The brain proper, occupying the entire upper portion of the skull. It is nearly divided into two equal parts, called "hemispheres," by a cleft extending from before backward. CHO´ROID (Gr. [Greek: chorion], _chorion_, a membrane or covering). The middle tunic or coat of the eyeball. CHYLE (Gr. [Greek: chulos], chulos, juice). The milk-like fluid formed by the digestion of fatty articles of food in the intestines. CHYME (Gr. [Greek: chumos], _chumos_, juice). The pulpy liquid formed by digestion within the stomach. CIL´I-A (pl. of _cil´i-um_, an eyelash). Minute, vibratile, hair-like processes found upon the cells of the air-passages, and other parts that are habitually moist. CIR-CU-LA´TION (L. _cir´culus_, a ring). The circuit, or course of the blood through the blood-vessels of the body, from the heart to the arteries, through the capillaries into the veins, and from the veins back to the heart. CO-AG-U-LA´TION (L. _coag´ulo_, to curdle). Applied to the process by which the blood clots or solidifies. COCH´LE-A (L. _coch´lea_, a snail-shell). The spiral cavity of the internal ear. {255} CONCH´A (Gr. [Greek: konchê], _konche_, a mussel-shell). The external shell-shaped portion of the external ear. CON-JUNC-TI´VA (L. _con_ and _jun´go_, to join together). A thin layer of mucous membrane which lines the eyelids and covers the front of the eyeball; thus joining the latter to the lids. CON-TRAC-TIL´I-TY (L. _con_ and _tra´ho_, to draw together). The property of a muscle which enables it to contract, or draw its extremities closer together. CON-VO-LU´TIONS (L. _con_ and _vol´vo_, to roll together). The tortuous foldings of the external surface of the brain.