L 5 - Anatomy R Flashcards
(8 cards)
The embryonic period is between which weeks?
3rd to 8th week of development
neurulation- fusion begins at the … region …th somite and proceeds first … then …
neurulation- fusion begins at the cervical region 5th somite and proceeds first cranially then caudually
The anterior neuropore closes at day … and the posterior neuropore closes at day …
The anterior neuropore closes at day 25 and the posterior neuropore closes at day 28
What are the derivatives of the ectodermal germ layer (7)
- central and peripheral nervous system
- sensory epithelium of the ear, nose, and eye
- epidermis and appendages
- subcuntaneous glands
- mammary glands
- pituitary gland
- enamel of the teeth
what are the 2 genes necessary for neural crest formation?
BMPs and FGFs
If the neural tube fails to close at the cranial region, then most of the brain fails to form, which is called?
Anencephaly
If the neural tube fails to close in the cervical region, then it is called?
Spina bifida
What reduces neural tube defects?
Follic acid
