BIO 351 - EXAM 2 STUDY GUIDE QUESTIONS
po po po po po po po
WITH CORRECT ANSWERS 2025/2026
po po po
What pois pogastrulation? po- poCORRECT poANSWER po-formation poof pothe pothree pogerm polayers: poectodermal,
pomesoderm, poand poendoderm
What pois poneurulation? po- poCORRECT poANSWER po-formation poof pothe poneural poplate poand poneural potube.
What pogerm polayer pois pothe poneural poplate poand poneural potube poderived pofrom? po- poCORRECT poANSWER
po- poectoderm
What poare pothe posteps poof poneural poplate pofolding? po- poCORRECT poANSWER po-1. poElongation po- poThe
ponervous posystem postarts poout poas poa poflat poneural poplate pothat poruns poalong pothe pomidline pofrom
porostral poto pocaudal.
2. Folding po- poThe pomedial pohinge popoint po(MPH) poanchor poto pothe ponotochord poand pochange
poshape poso pothat pothe poepidermal pocells pomove potoward pothe podorsal pomidline.
3. Elevation poof pothe poneural pofolds po- poThe poepidermal pocontinue poto popush poand poelevate poneural pofolds
4. Convergence po- poCells poat pothe podorsolateral pohinge popoint po(DHLP) popush potoward pocenter poto
pobring pothe poneural pofold pointo pocontact.
5. Closure po- poThe poneural pofolds pofuse poat pothe podorsal pomidline poand poseparate pofrom pothe
pooverlying poepidermis. poThe pomiddle poof pothe poneural potube pofuses pobefore pothe porostral
poand pocaudal poends
What poprocess pomakes pothe poperipheral poand pocentral ponervous posystem? poWhat pogerm polayer pois poit
poderived pofrom po- poCORRECT poANSWER po-neurulation; poectoderm
What poare poneural potube poclosure podefects po(NTDs)? po- poCORRECT poANSWER po-An poabnormality poor
podisruption poin pothe potiming poand polocalization poof pothe poneural potube poclosure poleading poto povarious
podisorders.
Example: poanencephaly, pomyelomeningocele, poand pospina pobifida
po po po po po po po
WITH CORRECT ANSWERS 2025/2026
po po po
What pois pogastrulation? po- poCORRECT poANSWER po-formation poof pothe pothree pogerm polayers: poectodermal,
pomesoderm, poand poendoderm
What pois poneurulation? po- poCORRECT poANSWER po-formation poof pothe poneural poplate poand poneural potube.
What pogerm polayer pois pothe poneural poplate poand poneural potube poderived pofrom? po- poCORRECT poANSWER
po- poectoderm
What poare pothe posteps poof poneural poplate pofolding? po- poCORRECT poANSWER po-1. poElongation po- poThe
ponervous posystem postarts poout poas poa poflat poneural poplate pothat poruns poalong pothe pomidline pofrom
porostral poto pocaudal.
2. Folding po- poThe pomedial pohinge popoint po(MPH) poanchor poto pothe ponotochord poand pochange
poshape poso pothat pothe poepidermal pocells pomove potoward pothe podorsal pomidline.
3. Elevation poof pothe poneural pofolds po- poThe poepidermal pocontinue poto popush poand poelevate poneural pofolds
4. Convergence po- poCells poat pothe podorsolateral pohinge popoint po(DHLP) popush potoward pocenter poto
pobring pothe poneural pofold pointo pocontact.
5. Closure po- poThe poneural pofolds pofuse poat pothe podorsal pomidline poand poseparate pofrom pothe
pooverlying poepidermis. poThe pomiddle poof pothe poneural potube pofuses pobefore pothe porostral
poand pocaudal poends
What poprocess pomakes pothe poperipheral poand pocentral ponervous posystem? poWhat pogerm polayer pois poit
poderived pofrom po- poCORRECT poANSWER po-neurulation; poectoderm
What poare poneural potube poclosure podefects po(NTDs)? po- poCORRECT poANSWER po-An poabnormality poor
podisruption poin pothe potiming poand polocalization poof pothe poneural potube poclosure poleading poto povarious
podisorders.
Example: poanencephaly, pomyelomeningocele, poand pospina pobifida
