Bootcamp 1 - introduction quizziz

Question 1

How many miles of axons are in the human brain?

Answer 1

100,000 miles

Question 2

What part of a neuron is sometimes compared to tree branches?

Answer 2

Dendrites

Question 3

If you stacked all the neurons in your brain end-to-end, how far would they reach?

Answer 3

To the Moon

Question 4

What “highway system” in neurons transports packages of proteins?

Answer 4

Cytoskeleton superhighway

Question 5

What “tiny truck” carries materials along axons?

Answer 5

Dynein and kinesin

Question 6

What do neurons do if they get too many signals at once?

Answer 6

Stop responding (become refractory)

Question 7

Why are neurons like batteries?

Answer 7

They store energy as ATP
They maintain a voltage difference
They’re both rechargeable

Question 8

What makes action potentials travel faster on some axons?

Answer 8

Myelin insulation

Question 9

Which glial cells could be considered the brain’s “janitors”?

Answer 9

Microglia

Question 10

Which glial cell can connect to 50 axons at once?

Answer 10

Oligodendrocyte

Question 11

What is the Greek meaning of “glia”?

Answer 11

glue

Question 12

What structure helps guide neurons to their destination during brain development?

Answer 12

Radial glia

Question 13

How many glial cells are there for every neuron in the brain?

Answer 13

10

Question 14

What percentage of your body’s energy does the brain use?

Answer 14

20%

Question 15

How fast can a neuron send a signal?

Answer 15

268 mph

Question 16

What’s special about the hippocampus in taxi drivers?

Answer 16

It’s larger than average

Question 17

What happens to your brain cells when you learn something new?

Answer 17

They form new connections

Question 18

What unique feature do octopus neurons have that humans don’t?

Answer 18

They’re spread throughout their body

Question 19

What unique feature makes the human brain’s cells different from most other cells in the body?

Answer 19

They don’t divide once matured

Question 20

What makes neurons different from most other cells in the body?

Answer 20

They have more mitochondria than average cells
They communicate using electrical and chemical signals
They can stretch up to a meter in length