Week 4

In the ____ section of the brain below, the letters A, B, and C represent:

• coronal, A: caudate, B: internal capsule, C: putamen

• coronal; A: thalamus, B: internal capsule, C: putamen

• sagittal; A: corpus callosum, B: thalamus; C: globus pallidus

• transverse; A: caudate, B: internal capsule, C: putamen

• transverse; A: thalamus, B: internal capsule; C: globus pallidus

Increased input from the CAUDATE/PUTAMEN to the GLOBUS PALLIDUS INTERNAL SEGMENT has what effect on the activity of the FRONTAL CORTEX?

• Decreased activity

• Increased activity

• No change in the amount of activity

What is the effect of the dopaminergic projection from the substantia nigra pars compacta to the basal ganglia?

• excites neurons in the striatum that project to the indirect pathways

• inhibits neurons in the striatum that project to the direct pathway

• excites neurons in the striatum that project to the direct pathway

• excites neurons in the striatum that project to the hyperdirect pathways

Jo is asked to read several lines from a book. They quietly say, “ahh I… ead…thi… en..ence.” The sentence reads as, ”I’m asked to read this sentence.” Which best characterizes this dysfunction?

• dysarthria

• dysdiadochokinesia

• aphasia

• nystagmus

Which fibers contain afferent signaling from the cerebellum to the cortex?

• mossy fibers

• purkinje cells

• climbing fibers

• parallel fibers

Fara has a stroke in the left cerebellum. Which cerebral cortex and part of the body is affected by this? 

• right cerebral cortex and right side of the body

• right cerebral cortex and left side of the body

• left cerebral cortex and right side of the body

• left cerebral cortex and left side of the body

Select TWO of the labeled structures which play a key role in controlling gross limb movements.

• A & B

• A & D

• B & C

• C & D

The middle cerebellar peduncle contains fibres traveling from: 

• spinal cord to the cerebellar cortex

• cerebellar cortex to vestibular nuclei

• deep cerebellar nuclei to the cerebral cortex

• cerebral cortex to the cerebellar cortex

Which neurotransmitter does the basal ganglia rely on to mediate efferent motor activity?

• dopamine

• serotonin

• GABA

• glutamate

A patient is able to alternately, and rapidly switch between supination and pronation and accurately touch a target. However, once in standing, the individual presents with imbalance and is falls risk during gait. Which of the following areas of the cerebellum are most likely affected?

• vermis and paravermis

• anterior lobes

• flocculonodular lobe

• lateral hemispheres