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up the oxygen from the arterialized blood, forms carbonic acid, which unites with the iron, forming proto-carbonate of iron. This being of a gray color, he supposes it to be that which, with the other impurities of the blood, gives the venous blood the dark blue color. Then, as the blood comes in contact with the oxygen, as it is returned and exposed to this element in the lungs, the carbonic acid leaves the iron, which has a stronger affinity for oxygen than for carbonic acid, and forms the scarlet red peroxide of iron, that gives the characteristic color to the arterial blood. After this, as the blood is sent out through the smaller arteries and capillaries, it again gathers carbon and other impurities from the system, and becomes the dark, venous blood, thus completing the whole change of color in the circulation. 450 L.

As already mentioned, different articles of food have been divided into the azotized and non-azotized, or those which contain nitrogen as one of their constituents, and those which are nearly destitute of it. Of these, according to Liebig, the azotized portions are simply to supply the waste that is continually going on in the body, and promote its growth in the early stages of existence, or, in other words, the nutrient portion; while the sugar, starch, &c., are mainly of use in the respiratory organs. The correctness of this view may be understood from the fact, that the inhabitants in the colder regions of the earth consume a much larger quantity of oil and fat than the residents of hotter climates; and also those dwelling in the temperate zones can eat with greater impunity a larger quantity of fat meats in the winter than in the summer, there being then so much more demand for animal heat than in the summer.

M.

The suggestion of using the bellows in asphyxia, is from the directions of that distinguished and veteran surgeon, Valentine Mott, of New York city. The directions in the first part of the paragraph are the most practical, and best adapted to the wants of the community.

451 GLOSSARY

Ab-duc´tor. [L. abduco to lead away.] A muscle which moves certain parts, by separating them from the axis of the body.

Ab-do´men. [L. abdo, to hide.] That part of the body which lies between the thorax and the bottom of the pelvis.

Ab-dom´in-is. Pertaining to the abdomen.

A-ce-tab´u-lum. [L. acetum, vinegar.] The socket for the head of the thigh-bone; an ancient vessel for holding vinegar.

A-ce´tic. [L. acetum, vinegar.] Relating to acetic acid. This is always composed of oxygen, hydrogen, and carbon, in the same proportion.

A-chil´lis. A term applied to the tendon of two large muscles of the leg.

A-cro´mi-on. [Gr. ακρος, akros, highest, and ωμος, omos, shoulder.] A process of the scapula that joins to the clavicle.

Ad-duc´tor. [L. adduco, to lead to.] A muscle which draws one part of the body toward another.

Al-bu-gin´e-a. [L. albus, white.] A term applied to white textures.

Al-bu´men. [L. albus, white.] An animal substance of the same nature as the white of an egg.

A-lu´min-um. [L.] The name given to the metallic base of alumina.

Al´ve-o-lar. [L. alveolus, a socket] Pertaining to the sockets of the teeth.

Am-mo´ni-a. An alkali. It is composed of three equivalents of hydrogen and one of nitrogen.

A-nas´to-mose. [Gr. ανα, ana, through, and στομα, stoma, mouth.] The communication of arteries and veins with each other.

An-a-tom´i-cal. Relating to the parts of the body, when dissected or separated.

A-nat´o-my. [Greek ανα, ana, through, and τομη, tomē a cutting.] The description of the structure of animals. The word anatomy properly signifies dissection.

An´gu-li. [L. angulus, a corner.] A term applied to certain muscles on account of their form.

An-i-mal´cu-læ. [L. animalcula, a little animal.] Animals that are only perceptible by means of a microscope.

An´nu-lar. [L. annulus, a ring.] Having the form of a ring.

An-ti´cus. [L.] A term applied to certain muscles.

A-ort´a. [Gr. αορτη, aortē; from αηρ, aēr, air, and τηρεω, tēreo, to keep.] The great artery that arises from the left ventricle of the heart.

Ap-o-neu-ro´sis. [Gr. απο, apo, from, and νευρον, neuron, a nerve.] The membranous expansions of muscles and tendons. The ancients called every white tendon neuron, a nerve.

Ap-pa-ra´tus. [L. apparo, to prepare.] An assemblage of organs designed to produce certain results.

Ap-pend´ix. [L., an addition.] Something appended or added.

A´que-ous. [L. aqua, water.] Partaking of the nature of water.

A-rach´noid. [Gr. αραχνη, arachnē, a spider, and ειδος, eîdos, form. Resembling 452 a spider’s web. A thin membrane that covers the brain.

Ar´bor. [L.] A tree. Arbor vitæ. The tree of life. A term applied to a part of the cerebellum.

Ar´te-ry. [Gr. αηρ, aēr, air, and τηρεω, tēreo, to keep; because the ancients thought that the arteries contained only air.] A tube through which blood flows from the heart.

A-ryt-e´noid. [Gr. αρυταινα, arutaina, a ewer, and ειδος, eîdos, form.] The name of a cartilage of the larynx.

As-cend´ens. [L.] Ascending; rising.

As-phyx´i-a. [Gr. α, a, not, and σφυξις, sphyxis, pulse.] Originally, want of pulse; now used for suspended respiration, or apparent death.

As-trag´a-lus. [Gr.] The name of a bone of the foot. One of the tarsal bones.

Aud-i´tion. [L. audio, to hear.] Hearing.

Aud-it-o´ri-us. [L.] Pertaining to the organ of hearing.

Au´ri-cle. [L. auricula, the external ear; from auris, the ear.] A cavity of the heart.

Au-ric´u-lar. [L. auricula.] Pertaining to the auricle.

Ax-il´la. [L.] The armpit.

Ax´il-la-ry. Belonging or relating to the armpit.

A-zote´. [Gr. α, a, not, and ζωη, zoē, life.] Nitrogen. One of the constituent elements of the atmosphere. So named because it will not sustain life.

Ben-zo´ic. Benzoic acid. A peculiar vegetable acid, obtained from benzoin and some other balsams.

Bi´ceps. [L. bis, twice, and caput, a head.] A name applied to muscles with two heads at one extremity.

Bi-cus´pids. [L. bis and cuspis, a point.] Teeth that have two points upon their crown.

Bile. [L. bilis.] A yellow, viscid fluid secreted by the liver.

Bi-pen´ni-form. [L. bis and penna, a feather.] Bipenniform muscle. Having fibres on each side of a common tendon.

Brach´i-al. [L. brachium.] Belonging to the arm.

Bre´vis. [L.] Brevis, short; brevior, shorter.

Bronch´i-a, -æ. [L.] A division of the trachea that passes to the lungs.

Bronch´i-al. Relating to the bronchia.

Bronch-i´tis. [L.] An inflammation of the bronchia.

Buc-ci-na´tor. [L. buccinum, a trumpet.] The name of a muscle of the cheek, so named because used in blowing wind instruments.

Bur´sæ Mu-co´sa. [L. bursa, a purse, and mucosa, viscous.] Small sacs, containing a viscid fluid, situated about the joints, under tendons.

Cæ´cum. [L.] Blind; the name given to the commencement of the colon.

Calx, Cal´cis. [L.] The heel-bone.

Cal´ci-um. [L.] The metallic basis of lime.

Cap´il-la-ry. [L. capillus, a hair.] Resembling a hair; small.

Cap´su-lar. Pertaining to a capsule.

Cap´sule. [L. capsula, a little chest.] A membranous bag, enclosing a part.

Ca´put. [L.] The head. Caput coli. The head of the colon.

Car´bon. [L. carbo, a coal.] Pure charcoal. An elementary combustible substance.

Car-bon´ic. Pertaining to carbon.

Car´di-ac. [Gr. καρδια, kardia, heart.] Relating to the heart, or upper orifice of the stomach.

Car´ne-a, -æ. [L. caro, carnis, flesh.] Fleshy.

Ca-rot´id. [Gr. καρος, karos, lethargy.] The great arteries of the neck that convey blood to the heart. The ancients supposed drowsiness to be seated in these arteries.

Car´pal. [L. carpus, the wrist.] Relating to the wrist.

453

Car´pus, -i. [L.] The wrist.

Car´ti-lage. [L. cartilago.] Gristle. A smooth, elastic substance, softer than bone.

Car-ti-lag´in-ous. Pertaining to cartilage.

Cau-ca´sian. One of the races of men.

Ca´va. [L.] Hollow. Vena cava. A name given to the two great veins of the body.

Cel´lu-lar. [L. cellula, a little cell.] Composed of cells.

Cer-e-bel´lum. [L.] The hinder and lower part of the brain, or the little brain.

Cer´e-bral. Pertaining to the brain.

Cer´e-brum. [L.] The front and large part of the brain. The term is sometimes applied to the whole contents of the cranium.

Cer´e-bro-Spi´nal. Relating to the brain and spine.

Cer´vix. [L.] The neck.

Cer´vi-cal. Relating to the neck.

Chest. [Sax.] The thorax; the trunk of the body from the neck to the abdomen.

Chlo´rine. [Gr. χλορος, chloros, green.] Chlorine gas, so named from its color.

Chor´da, -æ. [L.] A cord. An assemblage of fibres.

Cho´roid. [Gr. χοριον, chorion.] A term applied to several parts of the body that resemble the skin.

Chyle. [Gr. χυλος, chulos, juice.] A nutritive fluid, of a whitish appearance, which is extracted from food by the action of the digestive organs.

Chyl-i-fi-ca´tion. [chyle and L. facio, to make.] The process by which chyle is formed.

Chyme. [Gr. χυμος, chumos, juice.] A kind of grayish pulp formed from the food in the stomach.

Chym-i-fi-ca´tion. [chyme and L. facio, to make.] The process by which chyme is formed.

Cil´ia-ry. [L. cilia, eyelashes.] Belonging to the eyelids.

Cin-e-ri´tious. [L. cinis, ashes.] Having the color of ashes.

Clav´i-cle. [L. clavicula, from clavis, a key.] The collar-bone; so called from its resemblance in shape to an ancient key.

Clei´do. A term applied to some muscles that are attached to the clavicle.

Co-ag´u-lum. [L.] A coagulated mass, a clot of blood.

Coc´cyx. [Gr.] An assemblage of bones joined to the sacrum.

Coch´le-a. [Gr. κοχλω, kochlo, to twist; or L. cochlea, a screw.] A cavity of the ear resembling in form a snail shell.

Co´lon. [Gr.] A portion of the large intestine.

Co-lum´na, -æ.[L.] A column or pillar.

Com-mu´nis. [L.] A name applied to certain muscles.

Com-plex´us. [L. complector, to embrace.] The name of a muscle that embraces many attachments.

Com-press´or. [L. con, together, and premo, pressus, to press.] A term applied to some muscles, that compress the parts to which they are attached.

Con´dyle. [Gr. κονδυλος, kondulos, a knuckle, a protuberance.] A prominence on the end of a bone.

Con-junc-ti´va. [L. con, together, and jungo, to join.] The membrane that covers the anterior part of the globe of the eye.

Cop´per. A metal of a pale, red color, tinged with yellow.

Cor-a´coid. [Gr. κοραξ, korax, a crow, and ειδος, eîdos, form.] A process of the scapula shaped like the beak of a crow.

Co´ri-on. [Gr. χοριον, chorion, skin.] The true skin.

Corn´e-a. [L. cornu, a horn.] The transparent membrane in the fore part of the eye.

Cos´ta. [L. costa, a coast, side, or rib.] A rib.

Crib´ri-form. [L. cribrum, a sieve, and forma, form.] A plate of the ethmoid 454 bone, through which the olfactory nerve passes to the nose.

Cri´coid. [Gr. κρικος, krikos, a ring, and ειδος, eîdos, form.] A name given to a cartilage of the larynx, from its form.

Crys´tal-line. [L. crystallinus, consisting of crystal.] Crystalline lens. One of the humors of the eye. It is convex, white, firm, and transparent.

Cu´bi-tus, -i. [L. cubitus, the elbow.] One of the bones of the forearm, also called the ulna.

Cu´boid. [Gr. κυβος, kubos, a cube, and ειδος, eîdos, form.] Having nearly the form of a cube.

Cu-ne´i-form. [L. cuneus, a wedge.] The name of bones in the wrist and foot.

Cus´pid. [L. cuspis, a point.] Having one point.

Cu-ta´ne-ous. [L. cutis, skin.] Belonging to the skin.

Cu´ti-cle. [L. cutis.] The external layer of the skin.

Cu´tis Ve´ra. [L. cutis, and vera, true.] The internal layer of the skin; the true skin.

Del´toid. [Gr. δελτα, delta, the Greek letter Δ, and ειδος, eîdos, form.] The

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