Of Ti1e Thorax In
Of Ti1e Thorax In General.— The Ster Num, The Ribs And Their Cartilages, Together With The Dorsal Vertebra, Are So United To Gether As To Compose The Frame-work Of The Thorax. (fig. 662.) Their Arrangement Is Such As Collectively To Admit Of Great Mobility, And At The Same Time To ...
Of Tile Physical Cause
Of Tile Physical Cause Of Animal Iieat, With Regard To The Physical Eau Of Animal Heat, Or To Its Mode Of Production, There Was A Time, Which We Have Not Yet Left Very Far Behind Us, When Natural Philosophers And Chemists Imagined They Possessed The Secret, Especially With Reference To ...
Of The Elasticity Of
Of The Elasticity Of The Ribs. - Elasticity Depends Upon Reaction, And Restores In A Contrary Direction The Force Which Have Been Impressed ; The Effect Produced Is Com Mensurate With The Amount Of The Cause, And The Reaction Can Never Take Place So Long As The Cause Continues To ...
Of The Mesocephale
Of The Mesocephale.- The Pyramidal And Olivary Colurnns May Be Readily Traced, As Already Explained, From The Medulla Oblongata Up To The Cerebral Hemispheres ; The Former Becoming United Chiefly With The Corpora Striata, The Latter With The Optic Thalami. In That Part Of Their Course Which Is Interme Diate ...
Of The Muscular System
Of The Muscular System. The Figure (180) Here Given From Aleckel* Il Lustrates Some Of The Most Instructive Peculiari Ties Of The Muscular System Of The Ornithorhyn Chus. The Animal Is Dissected From The Ventral Surface; The Great Cutaneous Muscle, The ' Pan Niculus Carnosus' (1), Is Reflected From The ...
Of The Respiratory Muscles
Of The Respiratory Muscles. - There Are Certain Muscles Especially Destined To Expand And Contract The Thoracic Cavity, And There Are Others Which Act In Different Degrees As Ac Cessories, They May Be Classed As Direct And Indirect Respiratory Muscles. The Direct Respiratory Muscles Are, Inter Costales Extern And Intend, ...
Of The Respiratory Volumes
Of The Respiratory Volumes. - Fop 1500 Years, From The Time Of Galen To Robert Boyle, Naturalists, Physicians, And Philoso Phers Disputed The Simple Operation Of Draw Ing Air Into The Thorax. There Were Three Explanations Given :—first, " That By The Dila Tations Of The Chest The Contiguous Air ...
Of The Sounds Of
Of The Sounds Of Respiration.—the' Breaking Up Of The Air Into Minute Streams Was Discovered By Laennec To Produce Certain Sounds, Named " Breathing Sounds:" Which Sounds Are Now Made Available In Detecting Organic Disease In The Lungs. As The Air Penetrates The Lungs, It Is Divided And Sub Divided ...
Of The Thorax In
Of The Thorax In Man. Anatomy Of The Framework Of The Thorax.—a Portion Of The Spine, The Ribs, The Sternum, Together With Numerous Muscles, Form The Wall Of The Human Thorax. The Framework Of Bones Is So Ar Ranged As To Admit Of Free Mobility In Various Directions, So As ...
On The Arrangement Of
On The Arrangement Of The Fibres Of Tile Iieart.—[the Editor Hopes That The Following Detailed Account Of The Researches Of Mr. Searle On This Difficult Point Of Minute Anatomy Will Not Be Deemed Unacceptable. Any Reference To The Labours Of Other Anatomists Has Been Rendered Unnecessary In Consequence Of That ...
Op Tue
Op Tue C Erebellum.— (trageyxrtpaxic, Tivicreioc Ertzeprx?“5.; Fr. Armlet ; Germ. Kleine Gchirn.) This Remarkable Portion Of The Ence Phalon, So Called From Its General Resemblance To The Cerebrum, Of Which It Is, As It Were, The Diminutive, Is Situate Behind The Mesocephale And Medulla Oblongata. It Is Lodged In ...
Or Biliary Calculi
Biliary Calculi, Or Gall-stones.—these Concretions Have Been Especially Examined By Gren, Thenard, Fourcroy, And As To The Fatty Matter Which They Contain, By Chevreul.* Human Gall - Stones Are, For The Most Part, Composed Of A Crystalline Aggregate Of A Species Of Adipocere, Or As It Has Been Termed By ...
Or Buzzing Of Insects
The Humming, Or Buzzing Of Insects. It Has Been Supposed By Some Entomologists That The Hum Of Insects Is Produced By The Os Cillations Of Their Wings During Flight, And This Supposition Is Strengthened By The Fact That The Tones Are Altered During The Suspension Of The Insects In The ...
Or Ii Ermapii Ilo
Ii Ermapi Troditism, Or Ii Ermapii Ilo Dism Hermaphrodisia; Androgynisme,gynan Drisme ; Hermaphroditisme, &c., Of The French ; Crinaph•odisrno Of The Italians; Zwitterbildung Of The Germans, &c. Many Different Definitions Of Hermaphro Ditism, And Almost An Equal Number Of Diffe Rent Classifications Of The Malformations Usu Ally Comprehended Under It, ...
Or Lacrymal Organs
Lacrymal Organs, Or Lacrymal Pas Sages, Organlacrymatia S. Vi& Lacrymales; Fr. Ies Organs Lacrymawr Ou Voles Lacrymales; Ital. Gli Organi Spettanti Die Lagrime ; Germ. Die Thriinenorgane. Under This Head It Is Proposed To Describe Not Only The Lacrymal Organs Properly So Called, But Also The Eyelids And Conjunctiva. This ...
Or Nutrition
Nutrition, Or The Acts By Which The Indi Vidual Is Preserved.—every Thing In Nature Changes, And Organized Beings Only Con Tinue Their Existence With Their Aptitudes To Manifest The Acts That Draw So Wide A Line Of Demarcation Between Them And Unor Ganized Bodies, By A Perpetual Renewal Or Re ...
Or Origin
Origin, Or The Acts By Which Species Are Con Tinued.—vegetables And Animals Alike Derive Their Origin From A Birth Or Genesis Accom Plished In Two Different Modes, Either Without The Concurrence Of Opposite Sexes, Or With Such A Concurrence. When Organized Beings Are Pro-• Duced Without The Concurrence Of Opposite ...
Or Purulent Deposit
Purulent Deposit, Or Pus• Pus Is A Fluid Of Whitish-yellow Or Greenish Colour, And Homogeneous Aspect ; Of Faint, Pe Culiar Smell, When Warm ; Inodorous, When Cold ; Of Creamy Consistence ; And Of Sweetish, Or Sometimes Saltish, Taste. Pus Consists Of A Liquid Part (liquor Purls) Holding In ...
Or Rotatoria Rotifera
Rotifera, Or Rotatoria, The Name Of A Class Of Invertebrate Animals Which Are Characterised By The Absence Of A Medullary Chord And Pulsating Vessels; By The Possession Of A Simple Tubular Alimentary Canal ; A Defi Nite Form ; A Reproduction Neither Fissiparous Nor Gemmiparous ; The Reproductive Organs Of ...