Cov txheej txheem:
![Dab tsi yog qhov ua haujlwm ntawm cov hlab ntsha receptors? Dab tsi yog qhov ua haujlwm ntawm cov hlab ntsha receptors?](https://i.answers-medical.com/preview/medical-health/14081510-what-is-the-function-of-nerve-receptors-j.webp)
Video: Dab tsi yog qhov ua haujlwm ntawm cov hlab ntsha receptors?
![Video: Dab tsi yog qhov ua haujlwm ntawm cov hlab ntsha receptors? Video: Dab tsi yog qhov ua haujlwm ntawm cov hlab ntsha receptors?](https://i.ytimg.com/vi/zHhiBB2UDlk/hqdefault.jpg)
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
A sensory receptor yog ib tug qauv uas reacts rau lub cev stimulus nyob rau hauv ib puag ncig, txawm nyob rau hauv los yog sab nraud. Nws yog ib qho lub paj hlwb xaus uas tau txais cov ntaub ntawv thiab ua tus txheej txheem ntawm kev tsim paj hlwb kev xav kom xa mus rau lub hlwb rau kev txhais lus thiab kev nkag siab.
Raws li, dab tsi yog lub paj receptor?
Cov txais . Cov txais yog cov tshuaj lom neeg transducers uas hloov lub zog los ntawm ob qho tib si sab nraud thiab sab hauv ib puag ncig rau hauv hluav taws xob impulses. Cov txais tau txuas nrog lub hauv paus tshee los ntawm afferent paj hlwb fibers.
Tsis tas li ntawd, cov neeg txais lub cev yog dab tsi? Kev xav cov receptors muaj nyob hauv txhua txheej ntawm daim tawv nqaij. Muaj rau yam sib txawv ntawm cov kws kho lub cev pom qhov tsis zoo ntawm cov tawv nqaij: cov nyob ib puag ncig cov hauv paus plaub hau, Pacinian corpuscles, Meissner corpuscles, Merkel complexes, Ruffini corpuscles, thiab C-fiber LTM (qis tus kws kho qhov muag qis).
Kuj nug, dab tsi yog qhov ua haujlwm ntawm cov hlab ntsha kawg hauv daim tawv nqaij?
Ib qho dawb paj xaus (FNE) los yog liab qab paj xaus , yog ib qho tshwj xeeb, tsis nyiam paj hlwb fiber xa nws lub teeb liab mus rau qhov kev nkag siab neuron . Tsis txaus ntseeg hauv qhov no txhais tau tias nqa cov ntaub ntawv los ntawm lub cev ib puag ncig mus rau lub hlwb. Lawv muaj nuj nqi raws li daim tawv nqaij nociceptors thiab tau siv los ntawm cov pob txha txhawm rau txhawm rau txheeb xyuas qhov mob.
5 hom receptors yog dab tsi?
Cov ntsiab lus hauv txheej no (5)
- chemoreceptors. txhawb los ntawm kev hloov pauv tshuaj lom neeg cov tshuaj.
- mob receptors txhawb los ntawm kev puas tsuaj ntawm cov nqaij.
- cov thermoreceptors. txhawb los ntawm kev hloov pauv ntawm qhov kub thiab txias.
- cov kws kho tsheb. txhawb los ntawm kev hloov pauv siab lossis txav mus los.
- photoreceptors. stimulated los ntawm lub teeb zog.
Pom zoo:
Dab tsi yog qhov txawv ntawm cov hlab ntsha thiab cov hlab ntsha capillaries?
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Piav qhia: Cov hlab ntshav nqa ntshav nyob hauv siab los ntawm lub plawv mus rau cov kabmob thiab cov nqaij. Lawv cov phab ntsa feem ntau yog tuab dua li cov leeg. Capillaries yog qhov sib txuas ntawm cov hlab ntsha thiab cov leeg thiab me me heev, Cov ntaub so ntswg qee zaum pom tawm thiab rov nco qab los ntawm cov qog ntshav thiab rov qab los rau cov leeg ntshav
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Arterial ulcers tsim los ntawm kev puas tsuaj rau cov hlab ntsha vim tsis muaj cov ntshav ntws mus rau cov ntaub so ntswg. Venous ulcers tsim los ntawm kev puas tsuaj rau cov hlab ntsha uas tshwm sim los ntawm cov ntshav tsis txaus rov qab mus rau lub plawv. Tsis zoo li lwm qhov txhab, cov ceg mob no tuaj yeem siv sijhawm ntau lub hlis los kho, yog tias lawv zoo txhua lub sijhawm
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Cov hlab ntsha nqa ntshav tawm ntawm lub plawv; Lub ntsiab hlab ntsha yog aorta. Capillaries nqa ntshav tawm ntawm lub cev thiab pauv cov as-ham, pov tseg, thiab oxygen nrog cov ntaub so ntswg ntawm qib cellular. Cov leeg ntshav yog cov hlab ntshav uas coj cov ntshav rov qab los rau hauv lub plawv thiab tso ntshav tawm ntawm cov kabmob thiab cov ceg
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Muaj plaub hom neuroglia pom nyob hauv nruab nrab lub paj hlwb: Astrocytes - tswj cov ntshav lub hlwb teeb meem thiab khaws cov tshuaj ib puag ncig los ntawm kev siv cov ions rov qab thiab cov tshuaj xa xov mus rau lub cev. Oligodendrocytes - myelinate axons nyob rau hauv lub hauv nruab nrab lub paj hlwb thiab muab tag nrho cov txheej txheem txheej txheem
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Cov leeg yuav tsum tau li qub kom cov ntshav ntws mus rau lub plawv. Theses li qub yog qhov tshwj xeeb hauv ob txhais ceg thiab caj npab. Lawv tawm tsam lub ntiajteb txawj nqus los tiv thaiv cov ntshav rov qab los. Cov hlab ntsha tsis xav tau li qub vim tias lub siab los ntawm lub plawv ua kom cov ntshav ntws los ntawm lawv mus rau ib qho