Reflex arc nyob qhov twg?

Cov txheej txheem:

Reflex arc nyob qhov twg?
Reflex arc nyob qhov twg?
Anonim

Ib reflex arc yog ib txoj hauv kev neural uas tswj tau qhov reflex. Hauv cov vertebrates, feem ntau cov neurons hnov tsw tsis ncaj qha mus rau hauv lub hlwb, tab sis synapse hauv qaum qaum.

qhov reflex arc pib thiab xaus qhov twg?

Lub reflex arc yog ib yam tshwj xeeb ntawm neural circuit uas pib nrog lub paj hlwb ntawm lub receptor (piv txwv li, qhov mob receptor nyob rau hauv lub ntsis ntiv tes) thiab xaus nrog lub cev muaj zog neuron ntawm tus effector (xws li., ib leeg pob txha).

Reflex arc pib qhov twg?

Feem ntau reflex arcs tsuas muaj peb lub neurons xwb. Lub stimulus, xws li ib rab koob, nkoos qhov mob receptors ntawm daim tawv nqaij, uas pib ib qho impulse nyob rau hauv ib tug sensory neuron. Qhov no taug kev mus rau tus txha caj qaum qhov chaw uas nws hla, los ntawm kev sib txuas lus, mus rau qhov sib txuas neuron hu ua relay neuron nyob hauv qaum qaum.

Txoj kev zoo ntawm reflex arc yog dab tsi?

Txoj hauv kev kom raug ntawm reflex arc yog: Sensory stimulus → Dentrite ntawm sensory neuron → Axon ntawm sensory neuron → CNS → Dendrite ntawm lub cev muaj zog neuron → Axon ntawm lub cev muaj zog neuron → Effector organ.

Puas reflex arc cuam tshuam nrog lub hlwb?

Cov lus teb ceev no yog hu ua reflex, thiab reflexes tshwm sim yam tsis muaj kev xav lossis kev npaj, txhais tau tias lub hlwb tsis koom nrog lawv.

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