The part of a neuron that conducts impulses away from its cell body is called a(n. O neurolemma Oaxon Odendrite O Schwann cell

Which of the following is not true of glial cells?     They are more numerous than neurons.     They transmit information.     They have diverse functions in support of neurons.     They can be a cause of brain tumors.

If a post synaptic neuron is stimulated to threshold by spatial summation this implies that the post synaptic cell has a lower than normal threshold the postsynaptic cell has many synapses with many presynaptic neurons the post synaptic cell is getting stimulated many times during a short period of time by a single presynaptic neuron the post synaptic cell is slow to repolarize

The somatic portions of the nervous system innervate: O your brachialis O everything on this list O your heart your blood vessels your intestines

If a neuron is stimulated simultaneously by 2 stimuli at its dendrites (one generates a very large hyperpolarizing potential and the other generates a very small depolarizing potential). What would happen to this neuron? Group of answer choices The summation of these two graded potentials will generate an action potential and this action potential will travel down the axon. Summation of these two graded potentials will cause the membrane potential at the axon hillock to be more negative. These graded potentials will bring the resting membrane potential to 0 mV. These graded potentials with opposite polarity would therefore generate two action potentials and they will travel along this neuron in opposite direction.

If a potassium channel is held open for even longer, leading to an even bigger hyperpolarization of the cell what will happen in an afferent neuron? action potentials will have a larger amplitude  action potentials will have a small amplitude less frequent action potentials in the neuron  more frequent action potentials in the neuron

Of the following, which must be true for an action potential? I - Action potentials only occur when the threshold potential has been exceeded.II - A stimulus produces a full action potential, or does not produce an action potential at allIII - During the undershoot phase, it is much harder to fire another action potential I, II, and III I only I and III II and III

Which of the following neuron structure - function parings is incorrect? Axon - extension of cell body Dendrite - sensitive to chemical and electrical signals Cell body - contains cell nucleus Axon - transmits signals to neighboring cells Dendrite - unbranched receptor sites of signals from other neurons

In the glial cell, what part sponge up the amino acid glutamate, which can damage neurons.

Neurons have three main components. Describe the function of each one a. Dendrites b. Cell body c. Axon i. Myelin sheet