Lesions of ascending pathways

Question 1

DCML terminology giveaways

Answer 1

gracile nucleus/fasciculi, cuneate nucleus/fasciculi, medial lemniscus

Question 2

ALS terminology giveaways

Answer 2

rexed lamina, nucleus proprius, ventral white commissure

Question 3

DCML sensation

Answer 3

fine touch and proprioception

Question 4

ALS sensation

Answer 4

pain and temperature

Question 5

UE, LE, or both?

Answer 5

gracile - LE
cuneate - UE
lateral cortex/mca - UE
medial cortex/aca - LE

Question 6

DCML crosses

Answer 6

closed medulla

Question 7

ALS crosses

Answer 7

ventral white commissure

Question 8

below closed medulla, lesions are

Answer 8

ipsilateral

Question 9

ALS crosses at VWC and deficits are

Answer 9

immediately

bilateral (if crossed at WVC itself)

Question 10

if it hasn’t crossed, deficits are

Answer 10

ipsilateral

Question 11

if it has crossed, deficits are

Answer 11

contralateral

Question 12

lesion rules DCML

Answer 12

everything below the level of the lesion

Question 13

lesion rules ALS

Answer 13

2-3 partial above and below the lesion

total below from there

Question 14

most ALS deficits will be

Answer 14

contralateral

Question 15

if lesion occurs in dorsal horn before crossing takes place in ALS, it will be

Answer 15

ipsilateral

Question 16

lesion at the open medulla will produce deficits on the

Answer 16

contralateral 1/2 of the body

Question 17

a lesion of the VWC will result in

Answer 17

bilateral decrease of pain and temperature etc, localized to a few segments above and below the lesion

Question 18

A lesion in the dorsal horn of the spinal cord that affects the nucleus proprius will result in

Answer 18

ipsilateral deficits in an area that includes a few dermatomes above and a few dermatomes below the lesion

Question 19

Brown-Sequard lesion

Answer 19

ipsilateral upper motor neuron paralysis and loss of proprioception AND contralateral loss of pain and temperature sensation

Question 20

all lesions in the nuclei in the brainstem will produce ___ deficits

Answer 20

ipsilateral

Question 21

all reflexes that are abolished will always be ____ to the lesion

Answer 21

ipsilateral

Question 22

only location that can give you apraxia

Answer 22

cortex (not bs or sc)

Question 23

significant hearing loss lesions are where

Answer 23

open medulla, inner ear, CN8

always ipsilateral

Question 24

all deficits due to lesion in the thalamus and internal capusle are

Answer 24

contralateral

Question 25

all cortical deficits are all ___ when the lesion is in the cortex

Answer 25

contralateral

Question 26

all deficits due to lesions in the peripheral nerves (including cranial nerves) are

Answer 26

ipsilateral