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Video: Muaj pes tsawg tus neurons nyob hauv kev thim rov qab?
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2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Cov cheebtsam raug ntawm a rov ua dua yog qhia hauv daim duab 13.12. Cov rov ua dua qhia hauv daim duab no hu ua 3- neuron reflex vim nws xav tau peb hom neurons : ib tug sensory, ib tug interneuron, thiab lub cev muaj zog neuron . Nws tseem hu ua a kev thim rov qab vim nws feem ntau koom nrog hauv kev thim los ntawm kev mob siab rau.
Ua kom pom qhov no, yuav ua li cas thaum lub sij hawm thim rov qab?
Cov kev thim rov qab (nociceptive lossis flexor kev thim rov qab ) yog tus txha caj qaum rov ua dua npaj los tiv thaiv lub cev los ntawm kev puas tsuaj stimuli. Nws yog polysynaptic, thiab ua rau muaj kev txhawb siab ntawm kev nkag siab, koom nrog, thiab lub cev muaj zog neurons. Kev hnov qab neuron ces sib txuas nrog interneurons uas txuas rau lub cev muaj zog neurons.
Ib sab saum toj, dab tsi reflex yog rho tawm reflex? Kev thim rov qab thim rov qab yog a txha caj qaum reflex npaj los tiv thaiv lub cev los ntawm kev puas tsuaj stimuli. Nws yog polysynaptic reflex, ua rau muaj kev txhawb siab ntawm kev nkag siab, koom nrog, thiab lub cev muaj zog neurons.
Ib yam li ib tug yuav nug, dab tsi ntawm lub hauv nruab nrab lub paj hlwb ua rau tshem tawm reflex?
Cov central paj hlwb koom nrog vim tias qhov kev hnov qab neuron sib txuas lus los ntawm tus txha nqaj qaum kom xa rov qab kev thim rov qab.
Cov khoom siv ntawm kev thim rov qab thim rov qab yog dab tsi?
Feem ntau reflex arcs muaj tsib yam tseem ceeb: receptors, sensory neurons , interneurons , lub cev muaj zog neurons thiab cov leeg . Txawm li cas los xij, tsis yog txhua qhov reflexes siv interneurons . Qee qhov txuas sensory neurons ncaj qha rau lub cev muaj zog neurons thiab tsis txhob siv interneurons.
Pom zoo:
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