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Flashcards in Neurophysiology Deck (27)
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1

concerning the spinal cord: which statement is correct?

Information regarding balance is transmitted to the cerebral cortex via the dorsal spinocerebellar tract

2

Which one of the following somatic-motor tract control facial expression?

corticobulbar

3

damage to the cerebellum does not show the following sign:

amnesia

4

concerning control of ventilation:

the accessory muscles are important in forced breathing

5

What innervates facial expression?

corticobulbular

6

Fibres associated with dull pain

C-fibers

7

Muscle spindle only sensory organ:

Very sensitive to contraction

8

What is the symprom of a lower motor neuron lesion?

paralysis

9

What are the differences between upper/ lower motor neuron

UMN- CNS only
LMN- CNS or PNS

10

What does he reticular formation NOT perform

memory

11

Decussation of the corticospinal tract is at?

Medulla

12

Refractory period is defined as?

Period of hyperpolarisation when the membrane cannot be excited again (more negative than -70mV)

13

which tract is involved in the movement of the facial muscles?

Corticobulbar

14

What stuctures are in the basal ganglia?

Globus pallidus
substantia nigra
Caudate nucleus
Putamen
Subthalamic nucleus
Nucleus accumbens

15

Which tract is a pyramidal tract?

corticobulbar

16

What is not a mechanoreceptor?

C-fibers

17

What features are C-fibres associated with?

Dull pain
unmyelinated
slow transmission

18

Which structure does not belong to the brain stem?

Cerebellum

19

Where is noradrenaline synthesised?

Pre-ganglionic neurone

20

Where does the corticospinal tract decussate?

Medulla

21

Were is the cell body for the primary neurones in the spinothalamic tract?

Dorsal horn

22

The afferent nerve in tendon organ reflex is the:

1b

23

Which of these is not correct about BBB

multiple endothelial cells

24

which is not a mechanoreceptor?

nociceptors

25

lower motor neurone lesion

paralysis

26

What's the main sensory receptor in monosynaptic reflex?

Muscle spindle

27

Where does the corticorspinal tract decussate?

Medulla