BIOLl 322l BIOL322l Modulel 8:l Latestl

BIOLl 322/l BIOL322l Modulel 8:l (Latestl

2026/l 2027l Update)l 100%l Verifiedl Questionsl &l Answersl |l Gradel A

Q:l Whyl can'tl dopaminel bel administeredl asl treatmentl tol thosel withl Parkinsons?

Answer:l

Dopaminel can'tl crossl thel bloodl brainl barrier

Q:l Whatl isl thel majorl drugl treatmentl forl motorl symptomsl ofl Parkinsons?l Whatl isl thel drug?

Answer:l

Levodopal (L-DOPA)l |l intermediatel inl thel synthesisl ofl dopaminel (convertedl vial dopal decarboxylase)

Q:l Whatl isl al sidel effectl ofl L-DOPA?l (2)

Answer:l

Dyskinesiasl (involuntaryl movementsl andl tics)l andl psychosis

Q:l Whatl isl rarel medicall interventionl thatl canl helpl withl Parkinsons?

Answer:l

Deepl brainl stimulationl (DBS)

Q:l Whatl isl multiplel sclerosisl (MS)?

Answer:l

Al diseasel thatl resultsl froml thel destructionl ofl myelinl inl thel CNS 1 / 3

Q:l MSl damagesl bothl ascendingl andl descending?

Answer:l

Neurons

Q:l Whatl mightl al personl withl MSl experience?l (4)

Answer:l

1.l Musclel weaknessl andl spasms 2.l Poorl balance 3.l Numbnessl 4.l Pain

Q:l MSl canl alsol causel cognitivel impairment,l visionl lossl and?

Answer:l

Depression

Q:l MSl affectsl peoplel worldwidel andl appearsl betweenl thel agel rangel of?

Answer:l

20l -l 50l yearsl old

Q:l Isl therel al curel forl MS?l Whatl isl treatmentl gearedl towards?

Answer:l

Slowingl thel progressionl andl helpingl patientsl recoverl froml anl attack

Q:l Howl muchl onl averagel doesl MSl decreasel lifel expectancyl by?l (ofl note,l MSl isl notl necessarilyl deadly,l peoplel arel justl asl likelyl tol diel froml naturall causes)

Answer:l

5-10l years 2 / 3

Q:l Whatl isl thel leadingl theoryl onl thel causel ofl MS?

Answer:l

Al faultyl immunel systeml thatl attacksl itsl ownselfl andl targetsl myelinl forl destruction,l causingl demyelination

Q:l Whatl isl thel probleml withl immunosuppresantsl andl MS?

Answer:l

Immunosuppressionl willl putl thel personl atl riskl forl developingl anl illnessl al thatl healthyl immunel systeml wouldl fendl offl atl thel suspensel ofl haltingl MSl progression

Q:l Whatl isl Huntington'sl disease?

Answer:l

Neurodegenerativel movementl disorderl resultingl froml variousl dysfunctionall signalingl pathwaysl ofl thel basall ganglia

Q:l Whatl arel somel symptomsl ofl HD?l (3)

Answer:l

Hyperkinesial (uncontrolledl movement),l poorl coordinationl andl cognitivel changesl leadingl tol dementia

Q:l Isl therel al curel forl HD?l Whatl isl thel prognosis?

Answer:l

Nol curel forl thel diseasel |l Prognosisl isl usuallyl fatall withinl 15l yearsl ofl dx

Q:l Howl isl HDl passedl down?l Whatl proteinl isl thel culprit?

Answer:l

Autosomall dominantl mannerl |l Huntingtinl proteinl (Htt)

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