Sensory

Question 1

What does the PNS incude?

Answer 1

All neural structures outside the brain and spinal cord

Sensory receptors, peripheral nerves, associated ganglia, autonomic NS and motor endings

Question 2

What is the purpose of the PNS?

Answer 2

Provides links to and from the external environment

Question 3

How does the PNS receive input?

Answer 3

Sensory receptors

Question 4

What is sensation?

Answer 4

Awareness of changes in the internal and external environment

Question 5

What is perception?

Answer 5

Conscious interpretation of those stimuli

Question 6

What is receptor level?

Answer 6

Sensory receptors

Question 7

What is circuit level?

Answer 7

Ascending pathways

Question 8

What is perception level?

Answer 8

Cerebral cortex interpretation of sensory input

Question 9

True or False: The CNS can use input from the PNS but it doesn’t have to have it?

Answer 9

False- The CNS is dependent on input from the PNS

Question 10

What is the PNS divided into?

Answer 10

Sensory (afferent) division
Motor (efferent) division

Question 11

What is the motor (efferent) division divided into?

Answer 11

Somatic Nervous System
Autonomic Nervous System (ANS)

Question 12

What is the autonomic nervous system divided into?

Answer 12

Sympathetic division
Parasympathetic division

Question 13

What sensory receptors fall under the category of Nonencapsulated?

Answer 13

Free nerve endings of sensory neurons

Modified free nerve endings of epithelial tactile complexes

Hair follicle receptors

Question 14

Which receptor surrounds hair follicles?

Answer 14

Hair follicle receptors

Question 15

Which sensory receptors are located in the basal layer of the epidermis?

Answer 15

Modified free nerve endings of the epithelial tactile complexes

Question 16

What do the epithelial tactile complexes consist of?

Answer 16

Merkel cells and discs

Question 17

Which sensory receptors are located in most body tissues and epithelia?

Answer 17

Free endings of sensory neurons

Question 18

What are the functional classes of sensory receptors categorized based on?

Answer 18

Location (L)
Stimulus type (S)

Question 19

What functional classes do each nonencapsulated sensory receptors have in common?

Answer 19

All types of exteroceptors and mechanoreceptors

Question 20

What sensory receptors fall under the category of encapsulated?

Answer 20

Tactile (Meissner’s) corpuscles

Lamellar (Pacinian) corpuscles

Bulbous corpuscles (Ruffini endings)

Muscle Spindles

Tendon organs

Joint kinesthetic receptors