QuestionSBA
QuestionChoice
The rhombencephalon (hindbrain) is the third primary vesicle. It later forms the metencephalon and the myelencephalon (secondary vesicles), which develop into the pons and cerebellum as well as the medulla, respectively. It additionally forms the 4th ventricle and central canal.
10026517
c
Rhombencephalon
QuestionChoice
The notochord is the precursor of the neural plate. It secretes growth factors which stimulate the differentiation of the overlying ectoderm into neuroectoderm. This happens before the development of the primary vesicles.
10026519
e
Notochord
QuestionChoice
The mesencephalon (midbrain) is the second primary vesicle. It has no secondary vesicles and forms the midbrain as well as the cerebral aqueduct.
10026516
b
Mesencephalon
QuestionChoice
Prosencephalon (forebrain) is a primary vesicle that gives rise to the telencephalon and diencephalon (secondary vesicles). The diencephalon then goes on to form the thalamus, hypothalamus and epithalamus as well as the third ventricle.
10026515
a
Prosencephalon
QuestionChoice
The caudal end of the neural tube forms the spinal cord. The thalamus develops from the cranial end of the neural tube, specifically the forebrain.
10026518
d
Spinal cord
Concept
Chapter
2693
4502
Neuralation
Topic
171
Embryology
17701
During embryonic development, which primary vesicle does the thalamus form from?
a