Neurons

Question 1

neuron Path

Answer 1

Dendrites receive info from other axon –> nucleus determines whether to send the info down –> charged particles go in and out of the axon as the electricity rushes down –> the charges bind to the end, open up and drop the chemicals into the synapse on the next neuron

Question 2

Spike rate

Answer 2

Recording of action potentials in a certain region of the brain
higher when the region is involved in a task, suppressed otherwise and no action potentials occur
can be used to make a map of the brain

Question 3

astrocytes

Answer 3

provide nutrients from the blood, maintain ion balance, send signals to neurons and other glia

Question 4

oligodendrocytes

Answer 4

form myelin sheath around the axons to speed up action potentials

Question 5

Multiple sclerosis

Answer 5

compromises myelination, inflames nerves and glial cells

Question 6

white matter

Answer 6

myelinated axons and glia

Question 7

grey matter

Answer 7

neuron cell bodies and glia

Question 8

glia

Answer 8

non neuronal cells of the brain
crucial in plasticity
repair neurons post injury

Question 9

pyramidal neurons

Answer 9

large, triangular in cortex

Question 10

purkinjie neurons

Answer 10

large flat dendrites in cerebellum (tree like)

Question 11

motor neurons

Answer 11

in spinal cord

Question 12

action potentials

Answer 12

encode info