Neurons and Glial Cells in the Spinal Cord Structure and Function

The video tutorial explains how to identify neurons and glial cells in the spinal cord. It covers the structure and function of neurons, including their processes like dendrites and axons. The tutorial also describes various types of glial cells, such as astrocytes, oligodendrocytes, microglia, and ependymal cells, highlighting their roles in the central nervous system. The video concludes with a recap of the differences between white and grey matter, emphasizing the presence of myelinated axons and various glial cells.

What is the characteristic pattern of grey matter in the spinal cord?

• Butterfly-shaped

• Triangular

• Circular

• Square

Where can neurons be found in the spinal cord?

• Only in grey matter

• In both grey and white matter

• Only in white matter

• In the central canal

What is the main function of dendrites in a neuron?

• Transmit signals towards the neuron

• Store genetic information

• Transmit signals away from the neuron

• Produce myelin sheath

What substance is found in the cytoplasm of neurons, making it basophilic?

• Hemoglobin

• Nissl substance

• Myelin

• Collagen

What is a unique marker for astrocytes in pathology?

• Glyofibrillary acid protein

• Myelin

• Hemoglobin

• Nissl bodies

What is the primary role of oligodendrocytes in the central nervous system?

• To create a myelin sheath around axons

• To act as immune cells

• To form the blood-brain barrier

• To produce cerebrospinal fluid

What is the main function of the myelin sheath?

• To protect the neuron from damage

• To insulate axons and speed up nerve impulse conduction

• To store nutrients for the neuron

• To produce neurotransmitters

Which type of glial cell acts as the immune system of the CNS?

• Ependymal cells

• Astrocytes

• Oligodendrocytes

• Microglia

What is the function of ependymal cells in the spinal cord?

• To transmit nerve impulses

• To line the ventricular system

• To store neurotransmitters

• To produce myelin

Which glial cell type is involved in the absorption and movement of cerebrospinal fluid?

• Astrocytes

• Oligodendrocytes

• Microglia

• Ependymal cells