ninja

Question 1

Where is the lesion in a 60 yo right-handed male with left-sided hemi-neglect?

Answer 1

RIGHT PARIETAL LOBE

Left-sided hemi-neglect is often associated with damage to the right parietal lobe.

Question 2

What is the diagnosis for a 66 yo with vertigo, diplopia, nausea, vomiting, hiccups, left face numbness, nystagmus, hoarseness, ataxia of limbs, and a tendency to fall to the left?

Answer 2

LATERAL MEDULLARY STROKE

Symptoms indicate a stroke affecting the lateral medulla.

Question 3

In a 26 yo with headache and right-hand clumsiness, where will damage show on MRI?

Answer 3

CEREBELLUM

Symptoms like intention tremor and dysmetria suggest cerebellar involvement.

Question 4

What area of the brain is likely affected in a 78 yo patient with mild hemiplegia who neglects one side of his body?

Answer 4

RIGHT PARIETAL LOBE

Neglect and awareness issues are often linked to right parietal lobe damage.

Question 5

Adult neurogenesis happens in which area of the brain?

Answer 5

HIPPOCAMPUS

The hippocampus is crucial for learning and memory, and is a site of neurogenesis.

Question 6

What symptoms would a patient exhibit with an infarct in the distribution of the left anterior cerebral artery?

Answer 6

WEAKNESS OF CONTRALATERAL FOOT AND LEG, SPARING OF FACE AND ARM, WITH ABULIA

This presentation is typical for left anterior cerebral artery strokes.

Question 7

If a previously pleasant mom becomes profane and irresponsible over 6 months, where is the most likely pathology?

Answer 7

FRONTAL LOBE

Personality changes often indicate frontal lobe dysfunction.

Question 8

What is the likely cause of rapid onset of right facial weakness, left limb weakness, and diplopia?

Answer 8

BRAIN STEM INFARCTION

These symptoms suggest involvement of the brainstem.

Question 9

Dopaminergic neurons projecting to the nucleus accumbens have cell bodies in which area of the brain?

Answer 9

VENTRAL TEGMENTAL AREA

The ventral tegmental area is critical for the reward pathway.

Question 10

Orexin is made in what part of the brain?

Answer 10

LATERAL HYPOTHALAMIC NUCLEI

Orexin is involved in regulating arousal and wakefulness.

Question 11

Which brain area is activated by subliminal presentations of emotional faces?

Answer 11

AMYGDALA

The amygdala plays a key role in emotional processing.

Question 12

Where does histamine synthesis happen?

Answer 12

HYPOTHALAMUS

The hypothalamus is responsible for synthesizing histamine, which is important for various brain functions.