2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
S altatory conduction nyob rau hauv unmyelinated axons: pawg ntawm Na+ channels ntawm lipid rafts enables micro-s altatory conduction nyob rau hauv C-fibers. Lub peev xwm ua tau (AP), lub cim tseem ceeb ntawm lub paj hlwb, yog nqa los ntawm ob hom axons: unmyelinated thiab myelinated fibers.
Puas S altatory conduction tshwm sim hauv myelinated axons?
S altatory conduction tshwm sim tsuas yog ntawm myelinated axons.
hom kev coj ua dab tsi tshwm sim hauv Unmyelinated axons?
Cov ntsiab lus hauv cov txheej no (70) Hom kev coj ua dab tsi tshwm sim hauv cov axons uas tsis muaj menyuam yaus? rationale: Ib qho peev xwm ua tau yog ua tsis tu ncua raws ib qho kev tsis sib haum xeeb ntawm axon los ntawm nws thawj ntu mus rau axon terminals.
Dab tsi tshwm sim raws Unmyelinated axons?
Myelin Txhawb Kev Tshaj Tawm nrawm nrawm Nrog AxonsNyob rau hauv cov axons uas tsis muaj myelinated, qhov kev txiav txim muaj peev xwm taug kev tsis tu ncua raws axons. Piv txwv li, nyob rau hauv unmyelinated C fibers uas ua rau mob los yog kub (0.4-1.2 μm nyob rau hauv txoj kab uas hla), conduction tshaj tawm raws axon yog 0.5-2.0 m / s (ceev ceev li koj taug kev los yog jog).
S altatory conduction yog dab tsi Vim li cas nws tseem ceeb nws tshwm sim hauv myelinated los yog unmyelinated axons?
Cov teeb liab hluav taws xob mus nrawm dua hauv axons uas yog insulated nrog myelin. Myelin, tsim los ntawm glial txhawb lub hlwb, qhwv ib ncig ntawm axons thiab pab cov hluav taws xob tam sim no ntws hauv axon (ib yam li qhwv daim kab xev nyob ib ncig ntawm cov dej xau.hose yuav pab dej ntws los hose).
Pom zoo:
Puas yog rov tshwm sim dua lossis rov tshwm sim dua?
Reoccur thiab recur yog verbs uas qhia ib lo lus hauv paus. Thaum lawv nyob ze heev ntawm lub ntsiab lus, lawv tsis zoo ib yam. Tej yam uas yog rov tshwm sim dua thiab dhau mus, tej zaum nyob rau ib ntus. Hauv qhov sib piv, ib yam dab tsi uas rov tshwm sim tsuas yog tshwm sim dua tab sis tsis tas yuav rov ua dua.
Rau qhov tshwm sim tshwm sim?
Cov tshuaj tiv thaiv tus kheej yogtawm tsam uas nyiam tsim cov khoom ntawm cov xwm txheej uas tshwm sim. … Qhov kev sib xyaw ua ke ntawm kev txo qis ntawm lub zog thiab qhov nce hauv entropy txhais tau hais tias cov tshuaj tiv thaiv combustion tshwm sim tsis tu ncua.
Puas yog stds tshwm sim nyob rau hauv medieval?
In medieval times, syphilis thiab gonorrhoea yog ob yam kab mob STDs uas muaj ntau tshaj plaws nyob hauv Europe. Ib txoj kev xav qhia tias tus mob syphilis tau kis los ntawm cov neeg coob coob uas tuaj tos tus kab mob ntawm kev caij nkoj coj los ntawm Christopher Columbus.
Nyob rau hauv lub cev ntawm tus txiv neej aqueduct ntawm sylvius tshwm sim nyob rau hauv?
Lub ventricles muaj plaub qhov khoob, cov kua dej puv hauv lub hlwb. … Nws txuas nrog lub paj hlwb aqueduct lossis aqueduct ntawm Sylvius hauv qhov nruab nrab ntawm lub hlwbrau plaub lub ventricle hauv pons thiab medulla. Lub aqueduct ntawm Sylvius nyob qhov twg?
Yuav ua li cas txiav txim siab seb qhov kev tshwm sim yog tshwm sim los yog tsis ua raws li txoj cai?
Kev sib xyaw ua lej ntawm kev hloov pauv enthalpy thiab hloov pauv hloov pauv tso cai rau kev hloov pauv ntawm lub zog dawb los suav. A tawm tsam nrog tus nqi tsis zoo rau ΔG tso tawm lub zog dawb thiab yog li nws tus kheej. Cov tshuaj tiv thaiv nrog qhov zoo ΔG yog tsis ua raws li kev xav thiab yuav tsis nyiam cov khoom.
