Mock Final Exam 2025.
Multiple Choice
1. At what stage of PD does the disease progress to the Substantia Nigra?
a. Stage 1
b. Stage 2
c. Stage 3
d. Stage 4
2. Which of the following is NOT a treatment for PD?
a. L-DOPA
b. Deep Brain Stimulation
c. COMT inhibitors
d. Glutamate Agonists
3. Which of the following is the most common presenting symptom of PD?
a. Tremors
b. Rigidity
c. Akinesia/Bradykinesia
d. Postural Instability
4. True or false: depression, anxiety, and sleep disturbances are all non-motor symptoms of PD.
a. True
b. False
5. In the Basal Ganglia, individuals with Parkinson’s disease have a lack of dopaminergic cells,
which leads to decreased of the indirect pathway and decreased of the direct
pathway.
a. Activation; activation
b. Activation; inhibition
c. Inhibition; inhibition
d. Inhibition; activation
6. True or false: in the Basal Ganglia, the direct pathway favours movement.
a. True
b. False
7. PD mainly affects which age group of individuals
a. Adults age 40-50
b. Adults age 60+
c. Adults age 25-40
d. Adults age 75+
8. Which of the following is NOT one of the four main nuclei of the Basal Ganglia?
a. Globus Pallidus
b. Substantia Nigra
c. Prefrontal Cortex
d. Subthalamic Nucleus
9. The indirect basal ganglia pathway…
a. Favours movement
, b. Inhibits movement
c. Modulates learning
d. Controls fine motor skills
10. Lewey bodies in PD are caused by which protein?
a. Alpha-synuclein protein
b. Tau Proteins
c. COMT Proteins
d. D2 MSN Proteins
11. True or False: Parkinson’s Disease if considered idiopathic
a. True
b. False
12. The current main hypothesis regarding parkinson’s lewey bodies is that it begins in the
and then travels up the to the .
a. Brainstem and olfactory bulbs; lateral ventricles; basal ganglia
b. Gut; vagus nerve; brainstem and olfactory bulbs
c. Basal Ganglia; lateral ventricles; Brainstem and olfactory bulbs
d. Brainstem and olfactory bulbs; vagus nerve; gut
13. What is the inheritance pattern of Huntington’s Disease?
a) Autosomal recessive
b) X-linked dominant
c) Autosomal dominant
d) Mitochondrial inheritance
14. Which brain region is primarily affected in the early stages of Huntington’s Disease?
a) Hippocampus
b) Dorsal striatum
c) Cerebellum
d) Thalamus
15. What is the molecular cause of Huntington’s Disease?
a) Exon deletion in the HTT gene
b) Frameshift mutation in the HTT gene
c) Missense mutation in the HTT gene
d) Expansion of CAG trinucleotide repeats in the HTT gene
16. Huntington’s disease is associated with a loss of which type of neurons?
a) Dopamine neurons in the substantia nigra
b) Indirect MSNs in the striatum
c) Direct MSNs in the striatum
d) Both b and c
17. Which of the following mechanisms is MOST directly responsible for cell death in
Huntington’s Disease?