Exam 24: Nervous System and the Senses

The nervous tissue that consists of myelinated axons transmitting information throughout the central nervous system is the

In the cochlea,how is sound transmitted into nerve signals that reach the brain?

A phenomenon in which sensations become more noticeable with prolonged exposure to the stimulus is termed sensory adaptation.

The condition that develops when there is excess GABA leading to excess dopamine and norepinephrine in the brain is

The part of the brain that controls the qualities of what we consider the "mind" is the

An action potential is generated when free nerve endings detect

Molecules produced by humans that influence mood and the perception of pain are opiates.

The retina transduces light energy into action potentials.

Acetylcholine is which of the following?

The nerve that conducts impulses to the area of the brain that determines sound is the

Rod cells provide color vision and allow us to see at night.

When a snake flicks its tongue the tips of the forked tongue pass through openings in the palate and contact sensory cells in the snout.How would this help a snake detect its prey?

The brain determines loudness of a sound by the number of neurons that are firing and the rate at which they fire.

Which of the following senses would utilize chemoreceptors?

Bone-conduction aids transmit sound waves directly to the oval window.This would bypass which of the following?

The opening for light to enter into the eye is the

In a neuron at rest

Place the following events in the correct order which they occur when a neuron conveys a message. resting potential threshold potential action potential

The dendrite,also called the nerve fiber,is typically a single long extension of the cell body.

Multiple sclerosis is an autoimmune disease in which a person raises antibodies against myelin.How would this affect the nervous system?