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Flashcards in Early development of the ectoderm Deck (21)
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1

What is the prochordal plate?

An area at the cephalic end of the embryo where the ectoderm and endoderm fuse - this will become the bucopharyngeal membrane

2

What is the cloacal plate?

An area at the caudal end of the embryo where the ectoderm and endoderm fuse - this will become the coacal membrane

3

What develops from the proencephalon?

The telencephalon (cerebral cortex) and diencephalon (hypothalamus, thalamus, epithalamus)

4

What is the proencephalon?

The forebrain

5

What is the mesencephalon?

The midbrain

6

What is the rhombencephalon?

The hindbrain

7

What develops from the rombencephalon?

The metancephalon and the myencephalon

8

What develops from the telencephalon?

The cerebral cortex

9

Which embryonic structure does the cerebral cortex develop from?

The telencephalon

10

Which embryonic structure does the hypothalamus develop from?

The diencephalon

11

What develops from the diencephalon?

Hypothalamus, epithalamus, thalamus

12

Which structures develop from the metencephalon?

The pons and cerebellum

13

Which structures develop from the myencephalon?

The medulla oblongata

14

Which embryonic structure does the medulla oblongata develop from?

The myencephalon

15

Which embryonic structure does the pons develop from?

The metencephalon

16

Which embryonic structure does the cerebellum develop from?

The metencephalon

17

What is the difference between the metencephalon, myelencephalon and mesencephalon?

Metencephalon - pons and cerebellum
Myencephalon - medulla oblongata
Mesencephalon - mid brain

18

What is the role of the notochord?

It promotes the formation of neuroectoderm (the neural plate) and therefore the formation of the neural tube

19

How is the notochord formed?

Cells migrate from the primitive node to form the notochordal plate which folds to form the notochord

20

Define neuralation

The process in embryology that describes the formation of the spinal cord and brain

21

Which structures are derived from neural crest cells?

The structures of the peripheral nervous system, as well as the connective tissues of the face and bones of the skull, adrenal medulla, melanocytes, meninges