Exam 44: Neurons, Glia, and Nervous Systems

The part of the brain called the _______ would likely be relatively large in a primate that uses extractive foraging techniques (i.e., techniques that enable it to locate, retrieve, and process hidden foods).

In their classic experiments to determine the electrical properties of neurons, Hodgkin and Huxley used

Damage to the axon hillock of a neuron would most immediately impair

Action potentials

A spinal reflex, such as the knee-jerk reflex, is the result of a sensory neuron synapsing with a motor neuron, which fires an action potential.The site of this conversion of afferent to efferent information is the _______.

The Nernst and Goldman equations shown are used to predict membrane potentials. In the Goldman equation, "o" stands for outside or extracellular, "i" stands for inside or intracellular, and "p" stands for permeability.To use the Goldman equation as expressed to calculate the membrane potential of a cell, you must know the _______, as well as the membrane permeability for these ions.

In vertebrates, the sensory and effector neurons that extend or reside outside of the brain and spinal cord make up the _______.

Which statement about neurotransmitters is false?

All of the following would occur if a neurotransmitter remained in the synaptic cleft except

The ventral horn of the spinal cord contains the

In an active synapse composed of a presynaptic and postsynaptic cell, which part of the presynaptic cell is the last to participate in the action potential?

Neurons and macroglia are similar in that they develop from _______, whereas microglia develop from _______.

In a neuron at rest, the resting membrane potential is mainly due to

Infections of the brain are quite rare, thanks to the protective role of the _______, to which astrocytes contribute.

All of the following are possible functions of different types of glial cells except

In the steady state, the membrane potential that exists in the cell membrane of all animal cells is called the _______.

All of the following are parts of the basic structure of a neuron except a(n)

If you wanted to cause a voltage-gated channel in a cell membrane to open, what might you use for a stimulus?

During limb movement, one muscle of a pair contracts while the antagonistic muscle relaxes.The interneuron that inhibits firing in the motor neuron for the antagonistic muscle is located in the _______ of the _______.

Which statement about voltage-gated channels is true?