Answer:
Myelin sheath increases the speed of electrical impulse along the nerve cells.
Explanation:
Myelin sheath is an insulting layer of proteins and fatty acids that are present around the nerves of brain and spinal cord.
Myelin sheath increases the speed of conduction of nerve impulse from one nerve cell to another cell. Myelin sheath is formed by the concentric wrapping of schwann cells around the axon. This sheath decreases axonal membrane capacitance and increases the conduction of nerve impulse.
Wilbur and Orville Wright were American inventors and pioneers of aviation. In 1903 the Wright brothers achieved the first powered, sustained and controlled airplane flight; they surpassed their own milestone two years later when they built and flew the first fully practical airplane.
Answer:
<em>The </em><em>toxin </em><em>bind </em><em>to </em><em>receptors </em><em>on </em><em>the </em><em>surface</em><em> of</em><em> </em><em>susceptible</em><em> </em><em>cell </em><em>and </em><em>enter </em><em>them</em><em> </em><em>by </em><em>endocytic </em><em>uptake.</em><em> </em><em>.</em><em>.</em><em>.</em><em> </em><em>With </em><em>the </em><em>exception</em><em> </em><em>of </em><em>pore-</em><em>f</em><em>orming</em><em> </em><em>proteins</em><em> </em><em>toxins </em><em>which</em><em> </em><em>compromise</em><em> </em><em>the </em><em>permiability </em><em>barrier</em><em> </em><em>of </em><em>the </em><em>target</em><em> </em><em>cell </em><em>plasma </em><em>membrane</em><em>,</em><em> </em><em>the </em><em>bacterial </em><em>toxin </em><em>act </em><em>catalytically</em><em> </em><em>to </em><em>modify</em><em> </em><em>substrates </em><em>within</em><em> </em><em>mammalian </em><em>cells.</em>
There are three types of basic neurons: sensory, motor and interneurons.
Sensory neurons <span>carry information to the brain, and motor neurons relay information from the brain to the muscles.
</span>The sensory neurons carry messages from sense organs (light, smell, sound, etc.) to the brain, while motor neurons c<span>arry messages from the brain to the muscles or glands of the body.</span>