Which of these is NOT involved in neuronal outgrowth into th
Which of these is NOT involved in neuronal outgrowth into the PNS?
Growth cones
Radial glia
Lamellipodia
Filopodia
| a. | Growth cones | |
| b. | Radial glia | |
| c. | Lamellipodia | |
| d. | Filopodia |
Solution
b. Radial glial
Radial glial serve as primary progenitor cells capable of generating neurons, astrocytes, and oligodendrocytes found in the developing vertebrate central nervous system (CNS).
During peripheral nervous system (PNS) development, myelin-forming Schwann cells (SCs) generate radial lamellipodia. Glial cells, sometimes called neuroglia that maintain homeostasis, form myelin, and provide support and protection for neurons in the central and peripheral nervous systems. A growth cone is a developing or regenerating neurite seeking its synaptic target. The filopodia are like the \"fingers\" of the growth cone and in between filopodia, \"lamellipodia\" are present.
