biosensors quiz ch9,10,11

Question 1

What are non invasive neural prosthetic examples?

Answer 1

EEG, ECoG, GSR, fMRI

Question 2

What are invasive neural prosthetics?

Answer 2

implanted devices that can directly target single neurons for action potentials, can help with damaged CNS

Question 3

What are two types of cells that the CNS consists of?

Answer 3

neural cells and dense glial cells (astrocytes)

Question 4

What makes it difficult for drugs to react with brain or CNS?

Answer 4

the blood brain barrier (BBB) and glial cells make it difficult for drugs to access

Question 5

How can damage and scar tissue response be minimalized?

Answer 5

smaller in dimension and sharper in morphology for the implanted device

Question 6

What is important for neurons to do? What happens if they don’t?

Answer 6

attach to an external surface, if they do not they may experience cell death or apoptosis

Question 7

how do cells typically connect to a biocompatible substrate?

Answer 7

they increase their attached area, they have greater cell viability compared to cells interacting with unsuitable or toxic

Question 8

What are the measures of biocompatibility?

Answer 8

Cell morphology, viability

Question 9

how are cleft’s stabilized?

Answer 9

by a protein molecule