Lec 6 - Sensory Pathways for Touch & Proprioception

Question 1

These are chemoreceptors that do smell and taste

Answer 1

Exteroreceptors

Question 2

Chemoreceptors that detect pH in blood etc.

Answer 2

Interoreceptors

Question 3

Hearing in color is called blank and is the crossing of sensory pathways

Answer 3

Synesthesia

Question 4

Cutaneous receptors slide

Answer 4

Ok

Question 5

These sensors in muscles sense tension/load

Answer 5

Golgi tendon organ

Question 6

Sensory part of muscle that senses muscle length and proprioception

Answer 6

Muscle spindle

Question 7

During isometric contraction, this is firing but this isnt

Answer 7

Gto, muscle spindle

Question 8

During stretching, blank is firing but blank isnt

Answer 8

Muscle spindle, gto

Question 9

Know the classifications of peripheral nerves table slide

Answer 9

Ok

Question 10

Pathway with large, myelinated fibers like type 1a, b from proprioceptors and type 2 or Abeta for touch

Answer 10

Medial

Question 11

Medial pathway transmit signals via blank

Answer 11

Posterior column medial lemniscus

Question 12

Pathway with small finely myelinated like type Adelta for nociceptors and cold, also unmyelinated c fibers

Answer 12

Laterals

Question 13

Posterior columns pathway slide

Answer 13

Ok

Question 14

This is right behind medial lemniscus and is involved in vestibular pathway

Answer 14

Medial longitudinal fasciculus

Question 15

Medial lemniscus includes sensory from the body below the blank

Answer 15

Rostral medulla

Question 16

Rostral medulla and higher has medial lemniscus with sensory from blank

Answer 16

Body AND head

Question 17

Medial lemniscus continues to the lateral thalamic sensory nucle:

Answer 17

VPL, VPM

Question 18

“Posterior column-medial lemniscus” slide to see distribution of vpl and vpm

Answer 18

Ok

Question 19

Primary somatosensory cortex brodmanns areas

Answer 19

3,1,2

Question 20

Association somatosensory brodmanns areas

Answer 20

5,7

Question 21

Secondary somatosensory brodmanns area

Answer 21

40

Question 22

Brodmann locations slide

Answer 22

Ok

Question 23

Cut spinal cord, we lose touch and proprioception blank

Answer 23

Ipsilateral

Question 24

Stroke on left side of pons affecting medial lemniscus would cause touch and proprioception blank

Answer 24

Contralaterally

Question 25

Medial lemniscus cross over in blank

Answer 25

Caudal medulla

Question 26

Lesion in caudal medulla to medial lemniscus would cause blank

Answer 26

Ipsilateral

Question 27

5

Answer 27

A… VPL does just body, VPM does head

Question 28

Receptors encode these 4 features of the stimulus

Answer 28

Nature, location, intensity, duration