Exam 15: Neural Integration I: Sensory Pathways and the Somatic Nervous System

A tactile receptor composed of highly coiled dendrites that are surrounded by modified Schwann cells and a fibrous capsule is a

A(n)________ is a depolarization of a sensory dendrite that can lead to an afferent nerve impulse if strong enough.

In order for a sensation to become a perception,

Which ascending tract carries the sensations for fine touch and vibration?

Sensory information from all parts of the body is routed to the ________ cortex.

Tactile discs are to ________ as tactile corpuscles are to ________.

A highly sensitive tactile receptor composed of dendritic processes of a single myelinated fiber that makes contact with specialized cells of the stratum germinativum is a

We can localize sensations that originate in different areas of the body because

The ________ tract provides subconscious regulation of upper limb muscle tone and movement and is part of the ________ pathway.

Gustatory receptors are sensitive to dissolved chemicals but insensitive to light.This is due to

Endorphins can reduce perception of sensations initiated by

Chemoreceptors are located in all of the following,except

The afferent neuron that carries the sensation to the CNS is a ________ neuron.

Tracts of the lateral and medial pathways include all of the following,except ________ tracts.

Sensations of burning or aching pain

The spinal tract that normally plays a minor role in the subconscious regulation of the distal muscles of the arms is the ________ tract.

The basal nuclei

Figure 15-1 Spinothalamic Tracts Use Figure 15-1 to answer the following questions: -Which structure conducts action potentials directly from a sensory receptor?

The heart muscle is a ________ effector.

A receptor potential may