Anatomy - Somatic Sensation

Question 1

Describe the pathway of somatic sensation.

Answer 1

Sensory receptors
Ascending pathways (discriminative pathway, non-discriminative pathway)
Cerebral neuronal circuits

Question 2

What is an important thing to remember about receptors?

Answer 2

They all function as nociceptors (respond to damaging stimuli that result in pain)

Question 3

What are exteroreceptors?

Answer 3

Outside the body

Sensitive to stimuli arising outside the body

Question 4

What are interoreceptors?

Answer 4

Sensitive to stimuli within the body

Question 5

What are proprioceptors?

Answer 5

Sensitive to internal stimuli

Advise the brain of body movement

Question 6

Name the general senses which have receptors.

Answer 6

Tactile sensation
Temperature
Pain
Muscle sense (provided by proprioceptors)

Question 7

What is the structure of receptors of the general senses?

Answer 7

Either free nerve endings or encapsulated nerve endings