Ectodermal Derivatives

Question 1

When does the neural tube form?

Answer 1

3rd Week

Question 2

When does the shape of the neural tube change?

Answer 2

4th Week

Question 3

When do the secondary brain vesicles develop?

Answer 3

5th Week

Question 4

Fate of Telencephalon

Answer 4

1. Cerebral Hemispheres
2. Basal Ganglia
3. Lateral Ventricles

Question 5

Fate of Diencephalon

Answer 5

Thalamic and Hypothalamic Regions

Question 6

Invagination of Diencephalon Floor

Answer 6

Infundibulum

Question 7

Thickening in Diencephalon Floor

Answer 7

Hypophysis

Question 8

Fate of Hypophysis

Answer 8

1. Anterior Pituitary Gland
2. Pars Tuberalis
3. Pars Distalis
4. Para Intermedia

Question 9

Fate of Metencephalon

Answer 9

1. Cerebellum

2. Pons

Question 10

Fate of Myelencephalon

Answer 10

Medulla Oblongata

Question 11

Week of formation of epithalamus, thalamus, hypothalamus

Answer 11

7th Week

Question 12

Layers of Spinal Cord and Medulla

Answer 12

1. Ventricular
2. Intermediate
3. Marginal

Question 13

Layers of Cerebellum

Answer 13

1. Ventricular
2. Intermediate
3. Internal Granular
4. Purkinje Cell
5. Marginal
6. External Granular

Question 14

Layers of Cerebrum

Answer 14

1. Ventricular
2. Sub-ventricular
3. Intermediate
4. Cortical
5. Marginal
6. Molecular

Question 15

Secondary Mitotic Center (Cerebellum)

Answer 15

External Granular Layer

Question 16

Precursor of Cerebrum’s 6 Layers

Answer 16

Neopallial Cortex

Question 17

When does the determination of laminar identity occur?

Answer 17

Final Cell Migration

Question 18

What type of migration forms the neopallial cortex?

Answer 18

Vertical or Radial

Question 19

What kind of migration forms the 40 or so regions of the brain that regulate different body processes?

Answer 19

Horizontal or Lateral

Question 20

Major Cell Type of the Cerebellum

Answer 20

Purkinje Cells

Question 21

Neurons Found in the Cerebral Cortex, Hippocampus, Amygdala

Answer 21

Pyramidal Cells

Question 22

Primary Excitatory Units

Answer 22

Pyramidal Cells

Question 23

Important Cells for Cells Repair

Answer 23

Astrocytes

Question 24

Cells that Contribute to the Blood-brain Barrier

Answer 24

Astrocytes

Question 25

“Nerve Glue”

Answer 25

Neuroglia

Question 26

Cells for Support and Tissue Repair

Answer 26

Neuroglia

Question 27

Cells that perform phagocytosis of myelin debris

Answer 27

Neuroglia

Question 28

Site of Neurogenesis

Answer 28

Dentate Gyrus of Hippocampus

Question 29

Membrane proteins serving as axonal growth cone guidance molecules

Answer 29

Semaphorin

Question 30

Where does semaphorin come from?

Answer 30

Trunk Neural Crest

Question 31

Protein Important in the Development of Lens and Retina

Answer 31

Pax6 Protein

Question 32

This promotes the separation of the single eye field into two bilateral fields.

Answer 32

Shh

Question 33

This retinal layer generates action potential.

Answer 33

Ganglion Cell Layer

Question 34

This retinal layer is composed of photoreceptors.

Answer 34

Outer Nuclear Layer

Question 35

This retinal layer is for spatial type analysis of images

Answer 35

Outer Plexiform Layer

Question 36

This retinal layer is for temporal and complex aspect of visual stimuli.

Answer 36

Inner Plexiform Layer

Question 37

These cells connect rods and cones.

Answer 37

Horizontal Cells

Question 38

These cells maintain the integrity of the retina.

Answer 38

Muller Cells