Question

select all that apply which are functions of astrocytes? form blood - brain barrier convert blood glucose to lactate for neurons to use for fuel secrete nerve growth factors regulate chemical composition of tissue fluid form myelin around axons in cns

Explanation:

Astrocytes are star - shaped glial cells in the central nervous system (CNS). They contribute to the formation of the blood - brain barrier, convert blood glucose to lactate for neurons, regulate the chemical composition of tissue fluid. Oligodendrocytes form myelin around axons in the CNS, and nerve growth factors are mainly secreted by non - neuronal cells like Schwann cells in the peripheral nervous system and not a main function of astrocytes.

Answer:

• Form blood - brain barrier
• Convert blood glucose to lactate for neurons to use for fuel
• Regulate chemical composition of tissue fluid