Exam 23: General Senses

The treatment of fibromyalgia requires an increase of calcium ions in the pain centers of the spinal cord.

The tactile receptor is made up of two cells: a tactile epithelial cell and a tactile disk.

Nociceptors serve as the primary receptor for pain.

The ability to sense the presence of your books when you have been holding them for a long time depends on the functioning of the Krause end bulbs.

Anatomically, each muscle spindle consists of a discrete grouping of about 5 to 10 modified muscle fibers called intrafusal fibers.

Mechanoreceptors are activated by stimuli that in some way deform or change the position of the receptor.

Which of the following is not true of a receptor potential?

Proprioceptors can be found in:

Muscle spindles are stimulated by excessive muscle contraction.

Special senses tend to be grouped into localized areas.

The terms Merkel disk and tactile meniscus refer to the same structure.

An itch is caused by a rapidly adapting free nerve ending called a root hair plexus.

Tonic proprioceptors allow us to know the location of our body parts without having to look.

Chemoreceptors are most likely to be activated by:

The function of a receptor is to turn a stimulus into a nerve impulse.

The two general classes of sense organs are:

Somatic sense receptors located in muscles and joints are called proprioceptors.

Adaptation by a receptor causes an increase in the rate of impulse but a decrease in its intensity.

Receptors are often described as sensitive axons or end organs.

Thermoreceptors are activated by changes in the concentration of electrolytes.