Exam 39: The Nervous System

You arrive ten minutes late for your final exam and immediately regret stopping for donuts, which feel like a dead weight in your stomach. Your heart is pounding and your palms are sweaty. What part of your nervous system is in control?

-What part of the neuron is labeled ?Section 1??

The interior of an unstimulated neuron maintains a constant negative charge, called the__________.

Select the path an electrical signal would take within a single neuron.

The right cerebral hemisphere

If a patient has a particular memory problem in which he can recall old memories but cannot make new memories, what part of his brain is most likely damaged?

Myelinated axons conduct action potentials more slowly than axons without a myelin covering.

An influx of calcium ions causes vesicles to fuse with the presynaptic membrane and release neurotransmitter into the synapse.

Most brain and spinal cord cells are

__________transmit signals from the central nervous system to the effector organs.

You just finished watching a scary movie and decide to take the trash out before going to bed. Halfway down the driveway, the streetlight goes out and something rattles the trashcans, just like in the movie before the monster attacked. Suddenly, the neighborʹs cat jumps up onto the top of the trashcan and you shriek. Your increased heart rate is in response to the neurotransmitter

The concentrations of ions inside and outside of a neuron are maintained by sodium-chloride (Na+-Cl−) pumps.

The more complex the organism, the more likely it is to have nerve net.

Taking a nap after meals is probably a good idea because it allows the body to digest the food as a result of the activities of the__________ nervous system.

What causes a nerve impulse to travel along the membrane?

People with damage to the hippocampus seem to be unable to remember recent events even though their memory of events before the damage remains intact. This seems to indicate that the hippocampus is involved in

The autonomic nervous system consists of two parts: the sympathetic and parasympathetic divisions. The sympathetic division is responsible for which type of response?

Which region of the brain helps regulate body temperature, endocrine activity, and water balance?

During the repolarization phase of an action potential, the membrane potential falls from +60 to -70 mV. This drop is due mostly to the movement of __________ions.

The brain interprets the__________ of light on the basis of the number and frequency of action potentials it receives from light receptors in the retina.