somatosensory system

Question 1

somatosensory receptors

Answer 1

cell bodies within dorsal root ganglion
-central process that terminates in the spinal cord or brainstem

Question 2

where can these receptors be found

Answer 2

skin, muscles, joints, and viscera

Question 3

proprioception

Answer 3

understanding movement, action and location

Question 4

muscle spindles

Answer 4

encapsulated and detects muscle length
-stretch receptors
-intrafusal (inside spindle) and extrafusal (outside spindle)

Question 5

golgi tendon organs

Answer 5

encapsulated and detects muscle tension
-tension on the capsule squeezes the nerve endings and stimulated them

Question 6

joint receptors

Answer 6

free nerve endings and other similar to receptors found in the skin
-responds to joint position and movement

Question 7

nomenclature of axons

Answer 7

organization of axons within categories
-A, B, C category
-numeral category

Question 8

A, B, C category

Answer 8

A is the largest myelinated axons and C is the smallest un-myelinated axon
-A has 4 subcategories

Question 9

numeral category

Answer 9

roman numerals 1-4
-as the number increases, the conduction velocity decreases so 4 contains the un-myelinated axons