3 Flashcards Preview

PTRS 852 > 3 > Flashcards

Flashcards in 3 Deck (40)
Loading flashcards...
1
Q

Where does the spinal cord end

A

L1-L2

2
Q

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

A

Lateral horn

3
Q

Sensory tracts

A

Dorsal column

4
Q

Sensory and motor tracts

A

Lateral Column

5
Q

Motor tracts

A

Anterior column

6
Q

What info does the fasiculus cutaneus carryy

A

Info from upper extremity

7
Q

What info does the fasiculus gracilis carry

A

Info from lower extremity and lower trunk

8
Q

Info the dorsal column carries

A

Discrimative Touch and proprioception (conscious)

9
Q

Travels to the thalamus from spine

Conscious pain and temp info

A

Spinothalamic

10
Q

Carries unconscious pain and temp info, alerting and arousal

A

Reticulospinal

11
Q

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

A

Corticospinal

12
Q

Gross motor movements and posture control

A

Reticulospinal

13
Q

Reflexive turning of the head

A

Tectospinal

14
Q

What does the spinothalamic control

A

Conscious pain and temp

15
Q

Signs of peripheral nerve distribution

A
Paresis or paralysis
Sensory loss
Abnormal sensations
Muscle atrophy
Reduce or absent DTR
16
Q

Clinical signs for UMN

A

Paresis
Spasticity
Hypertonia
Hyperreflexia

17
Q

Clinical signs for LMN

A

Loss of reflexes
Atrophy
Flaccid paralysis
Fibrillations/Fasciculations

18
Q

Rexed lamina II

A

Substantia gelatinosa

Processes pain info

19
Q

Rexed lamina III and IV

A

Nucleus proprius

Processes conscious proprioception and discrminative touch

20
Q

Clarkes column in Rexed lamina VII

A

Nucleus dorsalis

Relays unconscious proprioceptive into to cerebellum

21
Q

Carries conscious touch and proprioception sensory info

A

Dorsal column

22
Q

Carries conscious pain and temperature sensory info

A

Spinothalamic pathway

23
Q

Carries alerting and arousal sensory info

A

Spinoreticular pathway

24
Q

Carries unconscious proprioception sensory info

A

Spinocerebellar pathway

25
Q

What info does the dorsal column carry

A

Sensory tough and proprioception from limbs

26
Q

Dorsal column pathway

A

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

27
Q

What info does the spinothalamic pathway carry

A

Pain and temp sensory info from limbs

28
Q

Sinothalmic pathway

A
Enters spinal cord and synapses in dorsal horn
Crosses to contralateral spinal cord
Ascends in spinothalmic tract
Synapses in thalamus
Ascends to cortex
29
Q

Voluntary movement and fine motor control

A

Corticospinal

30
Q

Gross motor movements

A

Rubrospinal

31
Q

Trunk movements, postural control

A

Reticulospinal

32
Q

Trunk movements; postural control

A

Vestibulospinal

33
Q

Reflexive movement of head

A

Tectospinal

34
Q

Corticospinal info

A

Voluntary movement and fine motor control

35
Q

Rubrospinal info

A

Gross motor movements

36
Q

Reticulospinal info

A

trunk movements, postural control

37
Q

Vestibulospinal info

A

Trunk movements; postural control

38
Q

Tectospinal info

A

Reflexive movements of head

39
Q

Corticospinal tract

A

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

40
Q

Rubrospinal tract

A

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