Video: Cov platelets muaj dab tsi?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Platelets tsis muaj cell nucleus: lawv yog fragments ntawm cytoplasm uas yog muab los ntawm megakaryocytes ntawm cov pob txha pob txha, uas tom qab ntawd nkag mus rau hauv kev ncig.
Platelet cov.
| Platelets | |
|---|---|
| Precursor | Megakaryocytes ntau |
| Muaj nuj nqi | Kev tsim cov ntshav txhaws; tiv thaiv los ntshav |
| Cov cim qhia | |
| Latin | Thrombocytes |
Ib sab ntawm no, cov platelets muaj dab tsi?
Platelet cov Tus Qauv Tab sis txawm tias platelets yog tsuas yog cov cell tawg, lawv muaj ntau cov qauv uas yog tseem ceeb kom tsis txhob los ntshav. Lawv muaj cov protein nyob ntawm lawv qhov chaw uas tso cai rau lawv txhawm rau txhawm rau txhawm rau hauv cov hlab ntsha phab ntsa thiab tseem ua rau ib leeg.
3 lub luag haujlwm ntawm platelets yog dab tsi? Platelets muaj cov haujlwm hauv qab no:
- Kev zais cov vasoconstrictors uas txwv cov hlab ntshav, ua rau cov hlab ntshav txhaws hauv cov hlab ntsha tawg.
- Ua ib ntus platelet plugs kom tsis txhob los ntshav.
- Secrete procoagulants (cwj pwm) los txhawb cov ntshav txhaws.
- Dissolve cov ntshav txhaws thaum lawv tsis xav tau lawm.
Ib yam li ntawd, koj tuaj yeem nug, yam dab tsi ua cov platelets muaj?
Platelets Nws yog qhov tsis sib xws, tsis muaj nucleus, thiab feem ntau ntsuas tsuas yog 2-3 micrometers hauv txoj kab uas hla. Platelets tsis yog cov hlwb tseeb, tab sis tau hloov pauv raws li cov cell tawg ua los ntawm megakaryocytes. Vim tias lawv tsis muaj lub cev, lawv ua tsis muaj nuclear DNA.
Dab tsi yog platelets hauv biology?
Platelet : Ib qho tsis xwm yeem, muaj cov duab zoo li cov hauv cov ntshav uas pab ua ntshav khov. Thaum lub sij hawm ib txwm ntshav khov, tus platelets sib sau ua ke (sib sau ua ke). Txawm hais tias platelets feem ntau yog cais ua cov qe ntshav, lawv yog cov tawg ntawm cov pob txha loj loj hu ua megakaryocytes.
Pom zoo:
Dab tsi ua rau platelets los ua cov platelets nplaum?
Lub cev tiv thaiv kab mob ua rau cov ntshav tsis txaus ntseeg hu ua antiphospholipid antibodies, uas ua rau cov ntshav platelets sib sau ua ke. Hughes syndrome qee zaum hu ua 'nplaum ntshav syndrome' vim tias cov neeg uas muaj tus mob no feem ntau yuav tsim cov ntshav khov hauv cov hlab ntshav (thromboses)
Cov platelets siab hu ua dab tsi?
Lo lus 'thrombocythemia' yog qhov zoo dua thaum tsis paub qhov ua rau muaj platelet ntau. Qhov mob qee zaum hu ua thawj lossis tseem ceeb thrombocythemia. Qhov xwm txheej no tshwm sim yog tias cov hlwb tsis zoo hauv cov pob txha ua rau ntau cov platelets. Qhov mob no feem ntau yog hu ua theem nrab lossis rov ua kom rov ua dua thrombocytosis
Yam zaub mov twg yuav tsum zam yog tias koj muaj cov platelets qis?
Qee yam zaub mov thiab dej haus tuaj yeem txo cov ntshav platelet suav nrog: cawv. aspartame, cov khoom qab zib dag. kua txiv cranberry. quinine, ib yam khoom hauv dej tonic thiab iab txiv qaub
Dab tsi yog thawj cov tshuaj ntawm kev xaiv thaum tus menyuam mos muaj cov tsos mob bradycardia yam tsis muaj lub plawv nres?
Nco tseg: Yog tias cuam tshuam nrog thawj bradycardia (tau piav qhia saum toj no), atropine yog qhov kev xaiv thawj zaug ntawm kev kho tus mob AV thaiv. Yog tias cuam tshuam nrog lwm yam bradycardia, atropine tsis qhia rau kev kho mob ntawm AV block, thiab epinephrine yuav tsum tau siv
Cov ntshav platelets pab ua kom cov ntshav khov li cas?
Platelets yog cov qe ntshav me me uas pab koj lub cev tsim cov ntshav txhaws kom tsis txhob los ntshav. Yog tias ib qho ntawm koj cov hlab ntsha puas lawm, nws xa tawm cov cim rau platelets. Cov platelets mam li maj mus rau qhov chaw puas. lawv tsim lub ntsaws (khov) txhawm rau kho qhov puas tsuaj