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Question 1

What layer of initial cell ball does brain form from

Answer 1

Ectoderm 🥮
(Outermost)

Same as skin cells

Question 2

Glial cell (most general definition)

Answer 2

Any cell that is not a neuron (including stem cells) 🪩✨

Question 3

Symmetric v asymmetric mitosis

Answer 3

When there is no numb and only notch then it turns into a neuroblast

Question 4

Cortical plate

Answer 4

Current outer most layer of nueroblasts that gets covered over by new cortical plate and then cells differentiate 🙌

Question 5

Differention thing think flags

Answer 5

Semaphorens with high levels means dendrites

Low levels axons

Question 6

Analogy of axon development

Answer 6

Pathway (highway)
Target (neighborhood)
Address ( house)

Question 7

Growth cone

Answer 7

Filopodia : microfilaments
La mello podía : Spaces in between fingers

Question 8

Axon stealing

Answer 8

Chemoattractents (Netrin)
Chemorepelents (slit)

Question 9

Chemoaffinity hypothesis

Answer 9

Chemical markers on outside (integran)
Laminen
(On target)

Hand hold to guide precisely to target location

Question 10

Spinal nerves

Answer 10

Cervical 8
Thoracic : 12
Lumbar: 5
Sacral : 5
Coccyx : 1

Question 11

Types of nerves

Answer 11

Unipolar : 1 axon normal symbol
Pseudo unipolar: one axon cell body on the side
Bipolar: one dendrite one axon (sensory)
Multipolar : OG normal symbol

Question 12

Measurements with eye to electron microscopy

Answer 12

Eye 100mm
Neuron 20mm
Light microscope 0.1mm
0.02mm or 2nm
synaptic cleft
Electron microscope .1nm

Question 13

Tau

Answer 13

Tangles micro tubules (20nm)

Question 14

Cytoskeleton

Answer 14

Microtobules 20nm (transportation)(tubulin)
Neuro filaments 10nm (structure)
Micro filaments (actin) (5nm)