Anatomy 1 Final Exam - PAL 1 Q&A 2025/2026 Update A+

Ectoderm - ANS-Flate piece of ________ thickens along the midline to form the neural
plate
neural plate - ANS-The _________ is formed from thickening of the ectoderm at the
midline.
invaginates - ANS-The neural plate fold inward or ____________.
neural groove - ANS-When the neural plate folds inward (invaginates), it form the
___________.
neural folds - ANS-The regions on either side of the neural groove are called
neural tube - ANS-Neural folds fuse together and form the _________
neural folds - ANS-The neural tube is formed when __________ fuse together
neural crest - ANS-___________ develop as offshoots of the neural folds
neural tube
surface to the middle - ANS-the ___________ detaches from the rest of the ectoderm
and descends.
moves from the _________ to the _________ of the embryo
detaches from the ectoderm
moves from the surface to the middle - ANS-the neural tube ________ from the
ectoderm and moves from the _________ to the _________ of the embryo.
neuroganglion - ANS-neural crests give rise to _________
neuroganglion
neural crests - ANS-The dorsal root ganglion is an example of a __________ which
developed from the ________.
hollow neural tube
primary brain vesicles - ANS-the ___________ starts to differentiate
the head end swells to form __________