What is the function of a dendrite? - Socratic
2016年9月6日 · The more dendrites the more connections the brain can make. This adds in both memory and problem solving. The dendrite is the part of the nerve cell that receive messages that can be passed on to the next cell. The dendrites extend like fingers from the nerve cell. At the end of each dendrite is a space called a synapse where chemical can pass ...
Describe the basic structure of a neuron, including the axon, …
2016年2月26日 · A neuron has a cell body called Soma, inside the soma is the nucleus. Coming out of the soma arms is dendrites and the longest arm is axon.On the axon is the myelin sheaths and at the end of the axon is axon terminals. There are serval things in the structure of a neuron, see below. A neuron has a cell body called Soma, inside the soma is the ...
What is the function of the synaptic terminal (part of the neuron)?
2017年1月7日 · Synaptic terminal is axonic end of presynaptic neuron. () Presynaptic neuron sends message to postsynaptic neuron by secretion of chemical messengers known as neurotransmitters: this is because at synapse the two neurons are not in direct physical contact. The chemical messenger/neurohumor substances/neurotransmitters are stored in secretory …
How do muscle cells differ from nerve cells? - Socratic
2014年7月19日 · 1 Answer. Muscle cells and nerve cells (neurons) are two very different types of cells. Muscle cells (myocytes) contract to produce movement while nerve cells send messages from receptor cells to either glandular cells or muscle cells relaying messages throughout the body. While nerve cells are involved in the transmission of neural synapses ...
Why can nerve impulses travel only in one direction? - Socratic
2016年3月27日 · Explanation: Because of the chemical nature of impulse and the axon-dendrite structure. The best generic answer from a 2008 post follows (with my own edits for clarity): A Nerve electrical impulse only travels in one direction. There are several reasons nerve impulses only travel in one direction.
How do I find the derivative of a fraction? - Socratic
2018年5月1日 · We use quotient rule as described below to differentiate algebraic fractions or any other function written as quotient or fraction of two functions or expressions When we are given a fraction say f(x)=(3-2x-x^2)/(x^2-1). This comprises of two fractions - say one g(x)=3-2x-x^2 in numerator and the other h(x)=x^2-1, in the denominator.
How are axons and dendrites alike? - Socratic
2014年6月20日 · Neuron Processes/ Nerve Fibers are extensions from cell body. Dendrites : there may be as many as 1000 per neuron. They are short and branched and are the receptive portion of a neuron and carry impulses toward cell body. Axons : there is only one per neuron and they are a long and thin process and that carry impulses away from cell body.
How do you find the gradient of a function at a given point?
2014年9月4日 · To find the gradient, take the derivative of the function with respect to x, then substitute the x-coordinate of the point of interest in for the x values in the derivative. For example, if you want to know the gradient of the function y = 4x3 − 2x2 +7 at the point (1,9) we would do the following: Take the derivative with respect to x: 12x2 ...
Function Notation and Linear Functions - Algebra - Socratic
2018年6月23日 · So, if you take two numbers x1 and x2, you have that the fraction f (x1) −f (x2) x1 −x2 is constant for every choice of x1 and x2. This means that the slope of the function is constant, and thus the graph is a line. The equation of a line, in function notation, is given by y = ax + b, for some a and b ∈ R. KillerBunny · 1 · Feb 1 2015.
What is the derivative of #tanh(x)#? - Socratic
2014年12月22日 · The derivative is: 1 −tanh2(x) Hyperbolic functions work in the same way as the "normal" trigonometric "cousins" but instead of referring to a unit circle (for sin,cos and tan) they refer to a set of hyperbolae. (Picture source: Physicsforums.com) You can write: tanh(x) = ex −e−x ex +e−x. It is now possible to derive using the rule of ...
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