Structures of the Nervous System
Top of your head
Face
Left food
Stomach
Top of your head
Face
Left foot
Stomach
Top of your head
Face
Left foot
Stomach
Top of your head
Face
Left foot
Stomach
Contralateral
Ventral
Dorsal
Ipsilateral
Coronal (transverse)
Horizontal
Sagittal
Inverse
Coronal (transverse)
Horizontal
Sagittal
Inverse
Coronal (transverse)
Horizontal
Sagittal
Inverse
Specific is to general
Sending is to receiving
General is to specific
Receiving is to sending
The central cell organelle that stores DNA/RNA
A large group of cells and terminal endings in PNS
A large group of cells and terminal endings in CNS
Large bundles of axons that connect one location in CNS to another in PNS
The central cell organelle that stores DNA/RNA
A large group of cells and terminal endings in PNS
A large group of cells and terminal endings in CNS
Large bundles of axons that connect one location in CNS to another in PNS
The central cell organelle that stores DNA/RNA
A large group of cells and terminal endings in PNS
A large group of cells and terminal endings in CNS
Large bundles of axons that connect one location in CNS to another in PNS
The central cell organelle that stores DNA/RNA
A large group of cells and terminal endings in PNS
A large group of cells and terminal endings in CNS
Large bundles of axons that connect one location in CNS to another in PNS
Of the cell bodies (soma)
Of the myelinated axons.
Of the dendrites
Of the unmyelinated axons.
Pia mater
Cerebrospinal fluid
Dura mater
Arachnoid membrane
Air
Blood
Cerebrospinal fluid
Myelinated axons
Lower net weight
Diminished pressure on the base of the brain
Helps establish the outer layers of the skull during brain development
Reduces shock to CNS from sudden movement
Formed the four ventricles and cerebral aqueduct
Spread radial glia the outer most parts of the skull
Formed into a hollow tube known as the neural tube
Begun forming the 6 layers of cerebral cortex
Cerebral aqueduct
Third ventricle
Lateral ventricle
Choroid plexus
Two proginetor cells
A proginetor cell and a brain cell
A proginetor cell and a steroid cell
Two brain cells
They make sure the dura mater meninge doesn't shrink or collapse on itself
Provide nourishment to the pia mater
Guide neurons toward the layer of C-R cells
They do not serve a purpose anymore, they do for simpler species but are just an evolutionary byproduct in humans
Closest to the center of the brain
Closest to the layer of C-R cells
Near the front of the brain (because it's the most recent evolutionary adaptation)
Near the hindbrain (because it's the oldest evolutionary adaptation)
Begin symmetrical division
Begin asymmetrical division
Die
Turn into phagocytes
The brain's complexity continues to develop but the skull isn't growing at the same rate (hence the curved cerebral cortex), so there isn't room for all those neurons.
The axons have to travel relatively far within the brain and many die of lack of nutrition before they make their connections
It makes more sense to make too many neurons and let them battle out for the highest efficiency than to make just the right amount of each neuron.
If the axon of a neuron attaches to the incorrect part of the brain then the postsynaptic cell tells it to die
Forebrain
Midbrain
Hindbrain
Spinal column
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