2009 final Flashcards
Spinal cord injury below L1 causes
Muscle atrophy of both legs
Right-spinothalamic lesion
Pain (pin-brick) at the left leg
Responsible for the generation of walking
Multisynaptic circuit
Sensitive to stretch
Gamma motor neurons
A patient with poliomyelitis will have damage in
Anterior horn cells
A patient with upper motor neuron lesion. What could be a sign?
Hyper-reflexia
Medial 2 fingers suffer from paralysis with interossei
Ulnar nerve injury
What could affect the function of the lateral leminiscus?
Cochlear nuclei
Dysphagia + dysarthria
Nucleus ambiguous
What is the most common disorder of demyelination?
Multiple sclerosis
Which nuclei is associated with pupillary reflex?
Edinger-westphal nucleus
Occlusion of anterior spinal artery will lead to
Loss of touch sense in both legs
A patient came with diplopia, when asked to look medially toward the nose and down, he was able to look medially but not down. Which nerve is affected?
Trochlear nerve
A patient with loss of discriminative touch in the right hand and forearm, with loss of pain and temperature and movement. What can conclude that this is a brain-stem injury?
Horner syndrome to the right eye
In a patient with internuclear opthalmoplegia, what will be a sign?
Diplopia
What is induced in response to a drop in intracellular pH in ischemia?
Na-H exchanger
What controls glucose metabolism and cerebral metabolic rate?
Glutamate-glutamine cycle by astrocytes
What controls local cerebral blood flow under normal condition?
Glutamate release
A change in the cerebral blood flow is mainly due to
a change in CO2 concentration
What is noticed in Wernicke’s aphasia?
Impaired comprehension of words and sentences
Where is the auditory radiation seen?
Sublenticular part
Which cerebral layer is where we mainly see the corticospinal tract
V
Which artery supplies the medial surface of the cerebrum?
Anterior cerebral artery
Which artery if damaged will cause loss of vision?
Posterior cerebral artery
