EQUUS - - Eq Glossary -

an­tibac­te­rial--- drug or other sub­stance that kills bac­te­ria. an­tibi­otic--- drug that in­ter­feres with the vi­tal func­tions of bac­te­ria; used to con­trol or elim­i­nate bac­te­rial in­fec­tion. bars--- on the bot­tom of a horse’s hoof, the con­tin­u­a­tions of the horny wall run­ning for­ward from the heels be­tween the sole and frog. bi­otin--- wa­ter-sol­u­ble vi­ta­min of the B com­plex. bo­rium--- crys­tals in soft steel tub­ing that may be melted and ap­plied to the bot­tom of a horse­shoe to im­prove trac­tion, es­pe­cially on pave­ment and frozen foot­ing. but­tress--- thick­ened an­gle at the heel of a horse’s hoof wall. cof­fin bone (pedal bone)---ma­jor bone within the hoof, shaped like a minia­ture hoof. con­gen­i­tal--- present from time of birth; not nec­es­sar­ily hered­i­tary. corium--- tis­sue layer in the skin or its ap­pendages (hoof, hair, etc.) from which growth oc­curs; rich in blood and nerve sup­ply. coro­nary band (coronet)---bound­ary be­tween the top of the hoof wall and the skin at the bot­tom of the pastern where hoof growth be­gins. dig­i­tal cush­ion--- firm, spongy, wedge-shaped tis­sue mass fill­ing the area be­tween the frog and the deep dig­i­tal flexor ten­don. DNA (deoxyri­bonu­cleic acid)---large or­ganic mol­e­cule that con­sists of two chains of nu­cleo­tides wound around each other; the ma­te­rial of which genes are made. Genes are re­spon­si­ble for the in­di­vid­ual in­her­ited char­ac­ter­is­tics of liv­ing or­gan­isms. elec­trolytes--- sim­ple in­or­ganic com­pounds that dis­solve in wa­ter and are es­sen­tial for many of the chem­i­cal pro­cesses in the body. en­do­tox­emia--- pres­ence of spe­cific bac­te­rial poi­sons (en­do­tox­ins) in the blood; usu­ally caused by se­vere colic and re­sult­ing in shock and/or lamini­tis. fas­cia--- fi­brous sup­port­ive tis­sue sheets be­neath skin and be­tween mus­cles. fe­cal egg count--- lab­o­ra­tory pro­ce­dure for de­ter­min­ing the num­ber of in­ter­nal-par­a­site eggs in a fe­cal sam­ple; used pri­mar­ily to es­ti­mate a horse’s level of in­fec­tion with as­carids and/or strongyles. fi­brob­last--- a type of cell that se­cretes the pro­teins and col­la­gens nec­es­sary for the growth and re­pair of con­nec­tive tis­sue. frog--- wedge-shaped, soft horn struc­ture in the rear of the un­der­side of the hoof. hy­per­kalemic pe­ri­odic paral­y­sis (HYPP)--in­her­ited mus­cle dis­or­der of Quar­ter Horses and re­lated stock-horse breeds that is char­ac­ter­ized by mus­cle tremors, weak­ness and re­cum­bency. Most cases are man­aged by diet and med­i­ca­tion, but se­vere at­tacks can be fa­tal. lam­i­nae--- al­ter­nat­ing “leaves” of flesh and hoof horn that bond the wall of the hoof to the un­der­ly­ing bone. mi­cronu­tri­ents--- com­pounds es­sen­tial in minute amounts to the growth and well-be­ing of an an­i­mal.

non­s­teroidal anti-in­flam­ma­tory drug (NSAID) ---drug that con­tains no steroids and acts to re­duce heat and swelling. omen­tum--- loose, folded ex­ten­sion of the mem­brane cov­er­ing the stom­ach. pal­pate--- to ex­am­ine by touch­ing. poly­merase chain re­ac­tion (PCR)---a tech­nique which is used to am­plify the num­ber of copies of a spe­cific re­gion of DNA, in or­der to pro­duce enough DNA to be ad­e­quately tested. This tech­nique can be used to iden­tify, with a very high-prob­a­bil­ity, dis­ease-caus­ing viruses and/ or bac­te­ria. poul­tice--- hot or cold sub­stance ap­plied to a body part to draw in­flam­ma­tion from the area or to al­ter tem­per­a­ture. re­cur­rent air­way ob­struc­tion (RAO)---res­pi­ra­tory dis­ease, usu­ally of older horses, in­duced by ex­po­sure to dusts typ­i­cally found in sta­bles. The dis­ease is re­cur­rent, depend­ing on en­vi­ron­men­tal ex­po­sure. The term “heaves” can also be used to de­scribe RAO. shivers--- dis­ease of horses char­ac­ter­ized by trem­bling or quiv­er­ing of var­i­ous mus­cles. syn­ovial mem­brane--- lin­ing of ten­don sheaths and joint cap­sules. ty­ing up (re­cur­rent ex­er­tional rhab­domy­ol­y­sis, azo­turia, Mon­day-morn­ing sick­ness, myosi­tis)--se­vere, painful cramp­ing of large mus­cle masses, re­sult­ing in dis­col­oration of the urine with the byprod­ucts of mus­cle de­struc­tion. Ty­ing up of­ten is seen in fit horses who re­sume heavy ex­er­cise af­ter a few days of rest with­out any re­duc­tion in grain ra­tion. vis­ceral--- per­tain­ing to the large in­ter­nal or­gans in the tho­racic, ab­dom­i­nal and pelvic cav­i­ties. white line--- zone on the bot­tom of the horse’s hoof where the in­sen­si­tive lam­i­nae and the in­ter­lam­i­nar horn at­tach the wall to the mar­gin of the sole.

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