Question

Which of the following functions are performed by the blood-brain barrier?

1) Maintaining the blood-brain barrier
2) Guiding neuron development
3) Adjusting the composition of the interstitial fluid
4) Repairing damaged neural tissue
5) All of the answers are correct

Answer 1

The blood-brain barrier performs functions such as maintaining itself, adjusting the composition of the interstitial fluid, and guiding neuron development.

Step-by-step explanation:

The blood-brain barrier functions to maintain the blood-brain barrier, adjust the composition of the interstitial fluid, and guide neuron development. However, it does not repair damaged neural tissue. Therefore, the correct answer is 1) Maintaining the blood-brain barrier, 3) Adjusting the composition of the interstitial fluid, and 2) Guiding neuron development.