Video: Cov noog siv lawv cov ceg li cas?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Cov leeg hauv qab ntawm cov noog yog siv rau kev taug kev thiab txhawb nqa lawv cev. Cov cov duab ntawm noog ' lub cev zoo li spindles, uas tau pab lawv rau txo cov cua tsis kam thiab rau khaws qhov sib npaug ntawm lub sijhawm ya. Cov lub qhov ncauj ntawm ib tug noog yog ntawm daim nqi keratin thiab yog siv rau tau zaub mov, rau comb plaub thiab rau peck khoom.
Ib yam li ntawd, koj tuaj yeem nug, dab tsi yog qhov nqes hav siv rau?
Cov txiaj ntsig ntawm hindlimbs Qhov laj thawj tseem ceeb yog nws tuaj yeem dhia siab kom yooj yim khiav mus rau nws cov tsiaj nyeg thiab tseem ntes cov tsiaj. Nws tuaj yeem ua qee qhov tricks siv cov hindlimbs . Qav muaj 4 tus lej ua ntej ko taw thaum hindlimb muaj 5 tus lej.
Cov noog ko taw yog dab tsi? Cov nplai ntawm noog yog ua los ntawm tib yam keratin li beaks, claws, thiab spurs. Lawv pom ntawm cov ntiv taw thiab qee zaum ntxiv rau ntawm pob taws. Cov nplai thiab scutes ntawm noog tau xav tias yog homologous nrog cov tsiaj reptiles, thiab feathers tau tsim los ntawm cov nplai ntawm Archosaurs.
Tsuas yog li ntawd, ob pob txha ua li cas rau cov noog hind limb?
Cov Hind Limb [kho] Lawv suav nrog: femur, tibia thiab fibula, tarsals, metatarsals, tus lej lossis phalanges (saib daim duab 6.7). Sab saum toj ntawm lub femur txav tawm tsam (articulates nrog) pelvis ntawm lub duav sib koom.
Cov ko taw ntawm perching noog pab lawv li cas?
Noog ko taw rau Perching Muaj ntau lub qab nthab noog , los ntawm robins mus rau wrens thiab phoebes rau finches, belongs rau ib pawg loj hu ua cov noog . Cov qauv ntawm lawv ko taw pab lawv nyob rau ntawm nyias twigs. Thaum twg noog nyob rau ntawm ib tug twig, lawv cov ntiv taw cia li nruj, ua tsaug rau cov leeg nyob rau hauv ob txhais ceg thiab ko taw.
Pom zoo:
Koj tuaj yeem pab tus neeg nyob li cas yog tias lawv tsis nyiam saj ntawm lawv cov tshuaj?
Yog tias cov tshuaj tuaj yeem noj nrog zaub mov, koj tuaj yeem tso tshuaj rau hauv cov khoom me me lossis sib xyaw cov tshuaj ua kua nrog cov dej haus nyiam los pab nrog saj. Yog tias tshuaj tsis tuaj yeem tsoo, koj tseem tuaj yeem muab tso rau hauv cov zaub mov nrog cov zaub mov uas tuaj yeem nqos tau yam tsis tau zom, xws li txiv applesauce
Cov qav siv cov leeg hauv lawv txhais ceg li cas?
Thaum cov qav npaj dhia, lawv cov leeg nthuav tawm kom deb li deb tau. Cov nqaij leeg txhais ceg luv ntawm qhov no, hloov lub zog mus rau hauv cov leeg. Qav ces tawg tawm raws li cov leeg rov zoo li lub caij nplooj ntoo hlav. Cov qauv no ywj pheej yog tus yuam sij rau tus qav muaj peev xwm dhia tau ntev
Cov noog ua pa li cas lawv lub ntsws?
Lub ntsws, uas nyob nruab nrab ntawm cov hnab ntim cua hauv cov ntsiab lus ntawm cov pa roj, tau txuas ntxiv ua pa rau hauv ib qho kev taw qhia nrog cov cua tshiab thaum lub sij hawm kev tshoov siab thiab tas sij hawm ntawm lub qhov ntswg. Kev nqus mus rau hauv cov hnab cua yog tsim los ntawm kev nthuav dav ntawm lub hauv siab thiab kab noj hniav
Yuav ua li cas koj thiaj sau tau ceg ceg?
Hauv kev xyaum, muaj plaub hom kab mob prosthetic, uas hloov ib feem lossis ua tiav ntawm caj npab lossis ceg: Hauv qab lub hauv caug (BK, transtibial): Ib txhais ceg sab sauv txuas rau sab ceg sab sauv. Saum toj no lub hauv caug (AK, transfemoral): Ib tug prosthetic qis thiab sab ceg, nrog rau lub hauv caug prosthetic
Yuav ua li cas lawv lengthen ceg?
Lengthening ua hauj lwm los ntawm kev sib cais cov pob txha thiab distracting (rub sib nrug) cov pob txha segments qeeb heev kom cov pob txha tshiab txuas ntxiv rau hauv qhov sib txawv. Raws li cov pob txha segments yog maj mam distracted, cov pob txha regenerates, uas ua rau increased ntev. Cov cuab yeej uas ua qhov lengtheningis hu ua fixator