![]() ![]() Have more positive charge outside of their membranes than inside of their membranes. And you have them justīoth inside and outside of the cell. Potassium, I'll draw them as little triangles. Positively charged ions have a plus one charge and then This is outside the neuronĪnd potassium ions floating around. The membrane of the neuron, just like that. On this cell that's not covered by a myelin sheath. Relevant when we talk about a neuron and itsĪbility to send signals. Some voltage potential difference, but it's especially Ground understanding of the actual voltage potentialĪcross the membrane of a neuron. How does it go from the dendrite all the wayĪbout that, we need to kind of lay the ground rules- or a This information across the axon- or really, What this signal is or how does a neuron actually transmit Video is kind of lay the building blocks for exactly To dendrites of other neurons or to muscleĬells or who knows what. These terminal points of the axons might be connected This action potential or signal that travels across theĪxon and maybe stimulates other neurons or muscles because If it meets some threshold level, it's going to create Points on various dendrites, it gets added up and That that impulse, that information, that signal In future videos on what exactly that means- and It gets stimulated at theĭendrites- and the stimulation we'll talk about What a neuron looked like and we talked about theĭifferent parts of a neuron, and I gave you the general Questions are more than welcome, they are encouraged. You are on topic - everyone is here to learn and to teach. There are also many veins draining deoxygenated (used) blood from the brain, including but not limited to the superior sagittal sinus, vein of Galen, internal cerebral vein, superior and inferior anastomotic veins, the basal vein of Rosenthal, and the anterior, middle, and posterior cerebral veins. You can Google this if you're curious or I will happily provide more information. There are many blood vessels of the brain, including the vertebrobasilar system, the anterior, middle, and posterior arteries, the choroidal arteries, and more. ![]() Neurons depend on a constant supply of glucose for energyfrom which to make ATP! Therefore, with more phosphates, more high-energy bonds, more energy is released when those bonds are broken.īlood glucose goes to the brain. The answer is very straightforward because the energy comes from the unstable high-energy bonds between the phosphates. ![]()
0 Comments
Leave a Reply. |
Details
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |