Exam 3: Neurophysiology: The Generation, Transmission, and Integration of Neural Signals

Which of the following is an example of divergence?

The short-latency components of event-related potentials appear to be influenced primarily by

_______ synapses work with practically no time delay, whereas _______ synapses have a delay on the order of about a millisecond.

Which compound would prevent the release of neurotransmitters from stimulated neurons?

What are event-related potentials, and how are they useful in studying the workings of the normal brain?

The _______ are regularly spaced along the length of myelinated axons.

A patient has a seizure that does not involve the entire brain. Just before the seizure, the patient had an unusual sensation, and at the height of the seizure the patient was unresponsive. This patient most likely experienced a _______ seizure.

Ions are atoms or molecules that carry an electric charge due to the gain or loss of

The giant axons of squids have been used in neurophysiological research because they attain diameters of _______ mm.

The giant axons of some invertebrates conduct action potentials at speeds up to _______ m/s.

Describe the voltage clamping procedure. Describe and explain what can be learned from two different patch clamping techniques.

Describe channelopathies and give two examples of channelopathies, including symptoms that accompany each.

Discuss three factors that account for the rapidity of the knee-jerk reflex.

_______ inform the presynaptic neurons about the net concentration of transmitter in the synaptic cleft and help regulate future transmitter release.

The electrical potential across a semipermeable membrane separating different concentrations of ions is most accurately predicted by the _______ equation.

In the knee-jerk reflex, the total time between the stimulus and the initiation of the response is about _______ ms.

_______ receptors recognize the synaptic transmitter, but they do not themselves contain any ion channels.

Refer to the figure, which shows two voltage-gated Na⁺ channels (in blue) in the center. What is taking place in this figure?

In an animal research study, channelrhodopsin is inserted into neurons that make GABA (which inhibits neurons), and halorhodopsin is inserted into neurons that make glutamate (which excites neurons). Both sets of neurons make connections with a set of neurons responsible for eye blinking. If the eye-blink neurons are stimulated by blue light, the animal will _______ because the _______ neurons will be _______.

The simplest neural circuit is the