Bio |! 351 |! Module |! 3 |! Exam |! with |! precise |!
detailed |! solutions
Gastrulation |! - |! Correct |! answer |! ✔Establishes |! the |! three |! germ |! layers
Neurulation |! - |! Correct |! answer |! ✔Formation |! of |! the |! neural |! plate/tube
The |! nervous |! system |! starts |! out |! as |! a |! flat |! neural |! plate |! that |! runs |! along |! the |!
midline |! from |! rostral |! to |! caudal
Folding |! is |! initiated |! when |! the |! medial |! hinge |! point |! (MHP) |! cells |! anchor |! to |! the
|! notochord |! and |! change |! shape |! while |! the |! epidermal |! cells |! move |! toward |! the |!
dorsal |! midline
Epidermal |! cells |! continue |! to |! push |! and |! elevate |! neural |! folds
Cells |! at |! dorsolateral |! hinge |! point |! (DHLP) |! then |! push |! toward |! center |! to |! bring |!
fold |! into |! contact
The |! neural |! folds |! fuse |! at |! the |! dorsal |! midline |! and |! separate |! from |! overlying |!
epidermis
The |! brain |! is |! derived |! from: |! - |! Correct |! answer |! ✔Ectoderm
The |! nervous |! system |! begins |! as |! a |! flat |! neural |! plate |! that |! runs |! along |! the |!
midline |! from |! rostral |! to |! caudal. |! Folding |! is |! initiated |! with |! the |! __________ |!
anchored |! to |! the |! ______________ |! and |! changes |! shape |! while |! the |! epidermal |! cells |!
move |! toward |! the |! dorsal |! midline. |! - |! Correct |! answer |! ✔A. |! Medial |! hingepoint |!
cells
