3

Question 1

Where does the spinal cord end

Answer 1

L1-L2

Question 2

Only at T1-L2 spinal segments, cell bodies of preganglionic sympathetic neurons

Answer 2

Lateral horn

Question 3

Sensory tracts

Answer 3

Dorsal column

Question 4

Sensory and motor tracts

Answer 4

Lateral Column

Question 5

Motor tracts

Answer 5

Anterior column

Question 6

What info does the fasiculus cutaneus carryy

Answer 6

Info from upper extremity

Question 7

What info does the fasiculus gracilis carry

Answer 7

Info from lower extremity and lower trunk

Question 8

Info the dorsal column carries

Answer 8

Discrimative Touch and proprioception (conscious)

Question 9

Travels to the thalamus from spine

Conscious pain and temp info

Answer 9

Spinothalamic

Question 10

Carries unconscious pain and temp info, alerting and arousal

Answer 10

Reticulospinal

Question 11

Primary motor output (voluntary fine motor control) Medial is about 10% and does not cross while the lateral crosses in the medulla

Answer 11

Corticospinal

Question 12

Gross motor movements and posture control

Answer 12

Reticulospinal

Question 13

Reflexive turning of the head

Answer 13

Tectospinal

Question 14

What does the spinothalamic control

Answer 14

Conscious pain and temp

Question 15

Signs of peripheral nerve distribution

Answer 15

Paresis or paralysis
Sensory loss
Abnormal sensations
Muscle atrophy
Reduce or absent DTR

Question 16

Clinical signs for UMN

Answer 16

Paresis
Spasticity
Hypertonia
Hyperreflexia

Question 17

Clinical signs for LMN

Answer 17

Loss of reflexes
Atrophy
Flaccid paralysis
Fibrillations/Fasciculations

Question 18

Rexed lamina II

Answer 18

Substantia gelatinosa

Processes pain info

Question 19

Rexed lamina III and IV

Answer 19

Nucleus proprius

Processes conscious proprioception and discrminative touch

Question 20

Clarkes column in Rexed lamina VII

Answer 20

Nucleus dorsalis

Relays unconscious proprioceptive into to cerebellum

Question 21

Carries conscious touch and proprioception sensory info

Answer 21

Dorsal column

Question 22

Carries conscious pain and temperature sensory info

Answer 22

Spinothalamic pathway

Question 23

Carries alerting and arousal sensory info

Answer 23

Spinoreticular pathway

Question 24

Carries unconscious proprioception sensory info

Answer 24

Spinocerebellar pathway

Question 25

What info does the dorsal column carry

Answer 25

Sensory tough and proprioception from limbs

Question 26

Dorsal column pathway

Answer 26

Ascend in dorsal column to ipsilateral medulla Synapse in medulla Crosses spinal cord and ascends in medial leminiscus to contralateral thalamus Ascends to cortex

Question 27

What info does the spinothalamic pathway carry

Answer 27

Pain and temp sensory info from limbs

Question 28

Sinothalmic pathway

Answer 28

``` Enters spinal cord and synapses in dorsal horn Crosses to contralateral spinal cord Ascends in spinothalmic tract Synapses in thalamus Ascends to cortex ```

Question 29

Voluntary movement and fine motor control

Answer 29

Corticospinal

Question 30

Gross motor movements

Answer 30

Rubrospinal

Question 31

Trunk movements, postural control

Answer 31

Reticulospinal

Question 32

Trunk movements; postural control

Answer 32

Vestibulospinal

Question 33

Reflexive movement of head

Answer 33

Tectospinal

Question 34

Corticospinal info

Answer 34

Voluntary movement and fine motor control

Question 35

Rubrospinal info

Answer 35

Gross motor movements

Question 36

Reticulospinal info

Answer 36

trunk movements, postural control

Question 37

Vestibulospinal info

Answer 37

Trunk movements; postural control

Question 38

Tectospinal info

Answer 38

Reflexive movements of head

Question 39

Corticospinal tract

Answer 39

Cell body in motor cortex Crosses in medullary pyramid Descends in lateral column Synapses with alpha motor neurons

Question 40

Rubrospinal tract

Answer 40

Cell body in red nucleus Crosses immediately Synapses with alpha motor neurons