ascending somatosensory systems

Question 1

what is kinesthesia?

Answer 1

the sense of the perception of movements of joints

Question 2

what is stereognosis?

Answer 2

the ability to identify an object by touch

Question 3

what sensations does the dorsal column/medial lemniscus system carry?

Answer 3

vibration, discriminative touch, and proprioception

Question 4

are the lower extremities located medially or laterally in the fasciculus gracilis and the fasciculus cuneatus?

Answer 4

medially

Question 5

what sensation does the lateral spinothalamic tract carry?

Answer 5

pain and temperature

Question 6

loss of the 3rd order neurons in the lateral spinothalamic system will result in

Answer 6

a loss of the localization of pain, but not the affective emotional response to pain

Question 7

what is the purpose of the spinocervicothalamic pathway?

Answer 7

carries messages of conscious proprioception, discriminative touch, pain, and temperature that is NON-LOCALIZABLE

Question 8

what is the purpose of the spinoreticulothalamic pathway?

Answer 8

helps in analyzing the stimulus within the emotional domain as well as activates the SNS

Question 9

what is the purpose of the spinomesencephalic pathway?

Answer 9

can activate descending pathways that are critical for modulating incoming painful stimuli

Question 10

what do the spinoreticulothalamic and spinomesencephalic pathways have in common?

Answer 10

they can activate descending pathways that function in the proposed circuitry used in the modification of the transmission of painful sensations

Question 11

what type of fibers enter the anterior spinothalamic pathway?

Answer 11

C-fibers.

Question 12

what type of fibers enter the lateral spinothalamic pathway?

Answer 12

a-delta

Question 13

what type of messages does the anterior spinothalamic pathway carry?

Answer 13

burning pain and thermal nocioceptive impulses