Multiple Choice
In the context of tissue structure, what is a mature bone cell called?
27
views
1. Overview of Cell Biology
Overview of Tissue Structures
Multiple Choice
In the context of tissue structure and the nervous system, what is a Schwann cell?
A
A neuron cell body in the central nervous system that integrates synaptic inputs and initiates action potentials
B
A glial cell in the peripheral nervous system that wraps around axons to form the myelin sheath and support nerve regeneration
C
A contractile cell in cardiac muscle tissue responsible for generating rhythmic impulses at the sinoatrial node
D
A macrophage-derived immune cell that presents antigen to T cells in lymphoid tissues
Verified step by step guidance1
Step 1: Understand the role of Schwann cells within the nervous system by identifying whether they belong to the central nervous system (CNS) or peripheral nervous system (PNS). Schwann cells are part of the PNS.
Step 2: Recognize that Schwann cells are a type of glial cell, which means they provide support and protection for neurons rather than transmitting nerve impulses themselves.
Step 3: Learn that Schwann cells wrap around the axons of peripheral neurons to form the myelin sheath, which is essential for increasing the speed of electrical signal conduction along the nerve fiber.
Step 4: Note that Schwann cells also play a critical role in nerve regeneration by guiding the regrowth of damaged axons in the peripheral nervous system.
Step 5: Differentiate Schwann cells from other cell types mentioned, such as neuron cell bodies in the CNS, contractile cardiac muscle cells, and immune cells, by focusing on their unique function in myelination and support within the PNS.
Related Videos
Related Practice
