Exam 3 Pt 1

The nervous system derives from the

The endoderm, mesoderm, and ectoderm make up the three layers of the

What’s the order? Oocyte, _______, Blastula, _________

Term for formation of the neural tube by the closing of the ectoderm

CNS and heart are the two parts of the body that develop ______

Myelination starts in the ____ trimester

Human brain general growth:

CNS: ____ weeks

Fetus formed: 10 weeks

_____ ______: 13 weeks

the inner cell mass of the _________ is the future embryo

the bilaminar germ disk forms in what week?

The epiblast and hypoblast are the layers of what?

The trilaminar germ disc forms in what week?

This is made up of the ectoderm, mesoderm, and endoderm

What is the process by which the bilaminar germ disk becomes trilaminar?

Which layer of the trilaminar germ disc has the notochord?

The notochord is responsible for

________ is cell-cell interaction, where the secretion of one cell affects neighboring cells

The _____ _______ has to be completely closed, or else it leads to defects

What derives from the neural crest? (Frilly part outside of tube)

What derives from the neural tube?

The organizer region does what in the neural tube?

How do you get two embryos in one system? (Two-headed fish)

T or F: Gradients of the amount of a gene, and variants of a gene, are key to how they function

T or F: The same gene can have different functions at different locations and timesGene

Genetic controls are ________ among different animal species

What is BMP? If

If BMP signaling is inhibited, you get ______

If BMP signaling is NOT inhibited, you get ___________ tissue.

If the BHLH gene is activated, you get ______

If the Notch gene is activated, you get _________

The three vesicle stage of brain development involves what three parts?

What does the proencephalon become?

What does the rhombencephalon become?

What is the correct order of the five secondary vesicles?

the ________ flexure becomes the mesencephalon (brain/spinal cord curve)

The cervical flexure becomes the __________

the ________ flexure becomes the myelencephalon and metencephalon

Anteroposterior (AP) patterning has to do with which gene?

In the _______ part of the neural plate, there is low Wnt activity because Wnt inhibitors are high there

In the posterior part of the neural plate there is _____ wnt activity

The AP (wnt) gradient works by turning on different TFs. _______ for anterior, and GBX2 for ______

What is the name of the longitudinal groove along the neural tube?

Dorsoventral patterning in the spinal cord is controlled by the _________ and ________

The dorsal alar plate makes future _______ cells in the spinal cord

The ventral basal plate makes future _______ cells in the spinal cord

The roofplate and floorplate function like the ________ in that they secrete chemicals in order to induce neuron development

Sonic hedgehog (shh) is the most important _______ molecule

What familiar molecule also exists in the roofplate, this time making cells in the dorsal alar plate to be sensory cells?There

There are many variants of ____ genes, which are responsible for segments, legs, and motor neurons

What is the name of the longitudinal groove along the neural tube?

Dorsoventral patterning in the spinal cord is controlled by the _________ and ________

The dorsal alar plate makes future _______ cells in the spinal cord

The ventral basal plate makes future _______ cells in the spinal cord

The roofplate and floorplate function like the ________ in that they secrete chemicals in order to induce neuron development

Sonic hedgehog (shh) is the most important _______ molecule

What familiar molecule also exists in the roofplate, this time making cells in the dorsal alar plate to be sensory cells?There

There are many variants of ____ genes, which are responsible for segments, legs, and motor neurons

In AP patterning, _______ is the main inducer and determines what TFs are expressed.

Anterior has a high gradient of Pax 6, and posterior has EMX 2.

What is the name of the longitudinal groove along the neural tube?

Dorsoventral patterning in the spinal cord is controlled by the _________ and ________

The dorsal alar plate makes future _______ cells in the spinal cord

The ventral basal plate makes future _______ cells in the spinal cord

The roofplate and floorplate function like the ________ in that they secrete chemicals in order to induce neuron development

Sonic hedgehog (shh) is the most important _______ molecule

What familiar molecule also exists in the roofplate, this time making cells in the dorsal alar plate to be sensory cells?There

There are many variants of ____ genes, which are responsible for segments, legs, and motor neurons

In AP patterning, _______ is the main inducer and determines what TFs are expressed.

Anterior has a high gradient of Pax 6, and posterior has EMX 2.

The anterior part of the forebrain is for _____ and somatosensory, and posterior part is for the auditory and _______ cortices