Test 3 Flashcards
1
Q
3 planes of symmetry
A
- horizontal plane
- coronal plane
- sagittal plane
2
Q
what is neural induction?
A
process by which ectoderm gives rise to skin and neural tissue
3
Q
what is gastrulation?
A
process of blastula embryo transforms into 3 layers (gastrula)
4
Q
when will gastrulation occur in frog zygote?
A
begin at a 256-cell stage in the frog
5
Q
what organizer tissue induces all germ layers and accomplishes neural induction?
A
dorsal blastopore lip (DBL)
6
Q
what is a neural tube?
A
a structure that forms during early embryonic development and eventually gives rise to the brain and spinal cord
7
Q
4 steps of the formation of the neural tube
A
- bending/ invaginating the ventral midline
- elevating the neural folds
- pivoting the neural folds align them
- fusing the neural folds across the dorsal
8
Q
what are the 3 sections of the primary brain vesicles
A
- prosencephalon
- mesencephalon
- rhombencephalon
9
Q
what is prosencephalon?
A
forebrain
10
Q
what is a mesencephalon?
A
midbrain
11
Q
what is rhombencephalon?
A
hindbrain
12
Q
what are 2 types of neuronal migration?
A
- radial migration
- tangential migration
13
Q
A
