Bio Lab Development Flashcards Preview

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Flashcards in Bio Lab Development Deck (11):
1

Blastocel

fluid-filled cavity

2

vegetal pole

large concentration of yolk

3

animal pole

less concentration of yolk

4

ectoderm

outer layer
epidermis of skin
nervous and sensory systems
pituitary gland, adrenal medulla
germ cells

5

endoderm

lines embryonic digestive tract
epithelial lining of digestive tract
epithelial lining of respiratory, excretory, and reproductive tracts
thymus, thyroid, and parathyroid glands

6

mesoderm

middle layer
skeletal and muscular systems
excretory and reproductive systems (except germ cells)
dermis of skin
adrenal cortex

7

archenteron

formed when cells drastically rearrange from shallow depression to a narrow, deep tube (primitive gut)

8

blastopore

open end of archenteron. will become anus. (will become mouth first in protosomes)

9

notochord

rod that runs along dorsal side of chordate embryo. formed from cells coming together. disappear before birth

10

somites

formed from groups of cells from the mesoderm lateral to the notochord. separate into blocks. major role in forming vertebrate (and repeated structures)

11

neural groove

formed from ectoderm. becomes neural tube.