Video: Dab tsi yog qhov sib txawv ntawm glial cells thiab lawv cov haujlwm?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Hom ntawm Glia
Glial hlwb ntawm (a) lub hauv paus paj hlwb muaj xws li oligodendrocytes, astrocytes, ependymal hlwb , thiab microglial hlwb . Oligodendrocytes tsim lub myelin sheath ncig axons. Astrocytes muab cov as -ham rau cov neurons, tswj hwm lawv extracellular ib puag ncig, thiab muab kev txhawb nqa
Tom qab ntawd, cov glial cells yog dab tsi thiab lawv lub luag haujlwm yog dab tsi?
Lawv muaj plaub lub ntsiab kev ua haujlwm : (1) puag ncig neurons thiab tuav lawv nyob rau hauv qhov chaw; (2) muab cov as -ham thiab oxygen rau cov neurons; (3) insulate ib neuron los ntawm lwm tus; (4) los rhuav tshem cov kab mob thiab tshem tawm cov neurons tuag.
Ib sab saum toj no, dab tsi yog 6 hom glial hlwb? Muaj rau hom neuroglia, txhua tus muaj cov haujlwm sib txawv:
- Astrocyte.
- Oligodendrocytes.
- Microglia.
- Ependymal ntawm tes.
- Xov tooj ntawm tes.
- Schwann ntawm tes.
Hauv qhov no, 4 hom Neuroglial hlwb thiab lawv txoj haujlwm yog dab tsi?
Muaj rau hom neuroglia-plaub nyob rau hauv nruab nrab paj hlwb thiab ob hauv PNS. Cov kab mob glial no tau koom nrog ntau txoj haujlwm tshwj xeeb tshwj tsis yog txhawb nqa cov neurons. Neuroglia hauv CNS suav nrog astrocytes, microglial hlwb , ependymal hlwb thiab cov oligodendrocytes.
Muaj pes tsawg hom glial cells muaj?
peb hom
Pom zoo:
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