Neuro I Flashcards

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Terms Definitions
Spina bifida occulta is
common and usually clinically insignificant
Arnold-Chiari malformation
The presence of a beak-shaped mesencephalic tectum, aqueductal stenosis, elongated pons and medulla, small fourth ventricle and prolongation of the vermis characterizes
In the brain, which of the following cells are most sensitive to anoxic damage?
The sclerosis which occurs within the central nervous system following injury differs from that which occurs in other areas of the body in that the cells primarily responsible are
large abscess
Which of the following brain lesions is most prone to show fibrous encapsulation?
Initially, the area of the brain affected by ischemic will most likely demonstrate
colloid cyst of third ventricle
Of the following, noncommunicating, obstructive hydrocephalus would most likely occur in a patient with
middle cerebral artery
Thromboemboli originating from left atrial appendages most commonly produce infarcts in the distribution of
small blue cells and Homer-Wright rosettes
The most radiosensitive primary intracranial neoplasm is characterized by the presence of:
Homer-Wright rosettes are found in
The most frequent posterior fossa tumor in children is
medulloblastoma and ependymoma
Which neoplasms are more frequent in children than adults?
glioblastoma multiforme
The most frequent neoplasm of glial origin in adults is
The most frequent site of glioblastoma multiforme is the
A 70 year-old man with a 4 month history of personality change, headaches, and right hemiparesis was found to have a solitary, well-circumscribed, focally hemorrhagic and necrotic mass in the left frontal lobe. The most likely diagnosis
The most common brain tumor to spread along the leptomeninges by implantation
Intracranial neoplasms in children most frequently involve the
bronchogenic carcinoma
The most common origin of brain metastases in adults is
The most common extracerebral, intracranial primary neoplasm is
grossly circumscribed
Which of the following features best characterizes meningiomas?
in the posterior fossa
In children, neoplasms in the central nervous system are more commonly found
A 15 year-old boy with no sexual maturation is found to have papilledema, an enlarged sella turcica and fine calcifications above the sella turcica on skull x-ray.
fourth ventricle
Ependymomas of childhood most commonly arise in the
Psammoma bodies are most frequently found in
Arcuate nucleus
Which hypothalamic nucleus regulates prolactin secretion?
Which neurotransmitter system regulates prolactin secretion?
Déjérine-Roussy syndrome (thalamic pain syndrome)
There is sensory loss on the contralateral side, there is pain or discomfort out of proportion to the stimulus on the affected side of the body.
Posterior Limb of Internal Capsule
Contains fibers of the 3 ̊ neurons of the face's somatosensory pathway.
Periaqueductal gray
Surgical stimulation of this region has been shown to produce analgesia (alleviate pain).
Opiates and serotonin
Neurotransmitters implicated in pain MODULATION, which may be the targets of pain-alleviating drugs, include which of the following
tricyclic antidepressants
Apperently are not ADDICTIVE and are used in pain management.
tricyclic antidepressants
The methylated forms of these medications are useful blockers of serotonin reuptake.
Loss of dopaminergic neurons in Substantia nigra, pars compacta
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