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اعصابی ہم آہنگی

بارہویں جماعت · حیاتیات · 5 سوالات

نام: ____________________   تاریخ: ____________

  1. The resting membrane potential of a neuron is about:

    • A +30 mV
    • B +70 mV
    • C -70 mV
    • D 0 mV

  2. An impulse jumps from node to node along a myelinated axon. This is called:

    • A Reflex
    • B Saltatory conduction
    • C Osmosis
    • D Diffusion

  3. The gap between two neurons is the:

    • A Dendrite
    • B Node
    • C Synapse
    • D Axon

  4. Acetylcholine is a:

    • A Hormone from the thyroid
    • B Neurotransmitter
    • C Vitamin
    • D Enzyme

  5. The part of the brain that controls heart rate and breathing is the:

    • A Pituitary
    • B Cerebellum
    • C Cerebrum
    • D Medulla oblongata

جوابی کلید

1. C, 2. B, 3. C, 4. B, 5. D

  1. The inside is negative relative to the outside.

  2. The impulse jumps between nodes of Ranvier.

  3. Neurotransmitters cross the synapse.

  4. It carries signals across many synapses.

  5. The medulla controls involuntary vital functions.