Neurophysiology Flashcards
(27 cards)
concerning the spinal cord: which statement is correct?
Information regarding balance is transmitted to the cerebral cortex via the dorsal spinocerebellar tract
Which one of the following somatic-motor tract control facial expression?
corticobulbar
damage to the cerebellum does not show the following sign:
amnesia
concerning control of ventilation:
the accessory muscles are important in forced breathing
What innervates facial expression?
corticobulbular
Fibres associated with dull pain
C-fibers
Muscle spindle only sensory organ:
Very sensitive to contraction
What is the symprom of a lower motor neuron lesion?
paralysis
What are the differences between upper/ lower motor neuron
UMN- CNS only
LMN- CNS or PNS
What does he reticular formation NOT perform
memory
Decussation of the corticospinal tract is at?
Medulla
Refractory period is defined as?
Period of hyperpolarisation when the membrane cannot be excited again (more negative than -70mV)
which tract is involved in the movement of the facial muscles?
Corticobulbar
What stuctures are in the basal ganglia?
Globus pallidus substantia nigra Caudate nucleus Putamen Subthalamic nucleus Nucleus accumbens
Which tract is a pyramidal tract?
corticobulbar
What is not a mechanoreceptor?
C-fibers
What features are C-fibres associated with?
Dull pain
unmyelinated
slow transmission
Which structure does not belong to the brain stem?
Cerebellum
Where is noradrenaline synthesised?
Pre-ganglionic neurone
Where does the corticospinal tract decussate?
Medulla
Were is the cell body for the primary neurones in the spinothalamic tract?
Dorsal horn
The afferent nerve in tendon organ reflex is the:
1b
Which of these is not correct about BBB
multiple endothelial cells
which is not a mechanoreceptor?
nociceptors
