learning and behavior 7th chance chapter 4 test bank

How does the structure of neurons change when an older person becomes senile?ī) Neurons develop new but inappropriate connections.Ĭ) Many neurons die and dendrites branch less widely in the remainder.ĭ) The diameter of axons and cell bodies decreases.ġ8. Keeping animals in a varied environment with much stimulation leads to which change in neuronal structure?ī) Increased velocity of action potentials.ĭ) Division of mature neurons to form additional neurons.ġ7. One function NOT performed by glia is toĭ) guide the growth of axons and dendrites.ġ6. A neuron that has an axon and dendrites that branch diffusely, but only extend within a small radius, is probably a(n)_.ī) capable of transmitting impulses when neurons fail to do so.ĭ) like neurons, except that they lack axons.ġ5. A neuron that conveys information away from the hippocampus is considered a (an) _ cell, with regard to the hippocampus.ġ3. A neuron that conveys information toward the hippocampus is considered a (an) _ cell, with regard to the hippocampus.ġ2. One way to tell the difference between a dendrite and an axon is that dendrites usuallyĪ) form branches perpendicular to the main trunk of the dendrite.ĭ) taper in diameter toward their periphery.Ī) a glia cell that separates one neuron from another.ī) a neuron that receives all its information from other neurons and conveys impulses only to other neurons.Ĭ) a neuron that has its cell body in the spinal cord and an axon that extends to a muscle or gland.ĭ) a cell whose properties are halfway between those of a neuron and those of a glia cell.ġ1. As a general rule, axons convey informationĩ. Neurons have one _, but can have any number of _.Ī) the end of an axon, close to the next cell.Ĭ) a point at which the axon branches in two or more directions.ĭ) a swelling at the start of an axon, next to the cell body.Ĩ. Which part of a neuron contains the nucleus?Ħ. The main feature that distinguishes a neuron from other cells is the neuron'sī) ability to metabolize a variety of fuels.Ĭ) high internal concentration of sodium ions.ĥ. Which structure within an animal cell contains the chromosomes?Ĥ. The outer surface of a cell is called the _ and the fluid inside the cell is the _.ģ. The two kinds of cells in the nervous system are _, which receive and transmit information to other cells, and _, which do not transmit information.Ģ.

Learning and behavior 7th chance chapter 4 test bank