Which two types of neuroglia insulate neuron cell bodies and axons in the PNS from their surroundings?

Verified step by step guidance

Step 1: Understand that neuroglia (or glial cells) provide support and insulation to neurons in both the central nervous system (CNS) and peripheral nervous system (PNS).

Step 2: Identify that in the PNS, there are specific types of neuroglia responsible for insulating different parts of neurons: the cell bodies and the axons.

Step 3: Recognize that satellite cells are the neuroglia that surround and insulate neuron cell bodies in the PNS, providing a protective environment and regulating chemical exchange.

Step 4: Recognize that Schwann cells are the neuroglia that wrap around axons in the PNS to form the myelin sheath, which insulates axons and speeds up nerve impulse conduction.

Step 5: Conclude that the two types of neuroglia insulating neurons in the PNS are satellite cells (for cell bodies) and Schwann cells (for axons).

Verified video answer for a similar problem:

This video solution was recommended by our tutors as helpful for the problem above.

Video duration:

Was this helpful?

Key Concepts

Here are the essential concepts you must grasp in order to answer the question correctly.

Peripheral Nervous System (PNS)

The PNS consists of all nerves and ganglia outside the brain and spinal cord. It connects the central nervous system to limbs and organs, facilitating communication between the body and the brain.

Neuroglia in the PNS

Neuroglia are supporting cells in the nervous system that provide structural and functional support to neurons. In the PNS, key neuroglia include Schwann cells and satellite cells, which help maintain neuron health and function.

Insulation of Neurons by Neuroglia

Neuroglia insulate neurons to protect them and enhance signal transmission. Schwann cells wrap around axons forming myelin sheaths, while satellite cells surround neuron cell bodies, isolating them from the surrounding environment.

Recommended video:

Guided course