11 Questions
Which of the following is NOT a component of nervous tissue?
Muscle cells
What is the main function of neurons?
To transmit nerve impulses
What are the three main parts of a neuron?
Cell body, dendrites, and axons
Which organelle is located only in the cell body of a neuron?
Golgi apparatus
Which type of neuron has one dendrite and one axon?
Bipolar neuron
What is the function of dendritic spines in the central nervous system (CNS)?
To receive stimuli from other neurons
What is the role of glial cells in the central nervous system (CNS)?
To support neuronal survival and activities
Which glial cells are the predominant cells in the white matter of the CNS?
Oligodendrocytes
Which glial cells have long radiating, branching processes and can be classified into two types, fibrous and protoplasmic?
Astrocytes
Which glial cells extend processes that associate with or cover synapses, affecting the formation, function, and plasticity of these structures?
Astrocytes
Which glial cells form myelin sheaths in the peripheral nervous system (PNS)?
Schwann cells
Study Notes
Nervous Tissue Components
- Nervous tissue consists of various components, but one thing it does not have is __________ (answer not provided).
Neurons
- The main function of neurons is to transmit and process information.
- A neuron consists of three main parts: dendrites, cell body, and axon.
- The cell body of a neuron contains the organelle called Nissl bodies (or chromatophilic substance).
Unipolar Neurons
- Unipolar neurons have one dendrite and one axon.
Dendritic Spines
- Dendritic spines in the central nervous system (CNS) function to increase the surface area for synaptic transmission.
Glial Cells
- Glial cells in the central nervous system (CNS) provide support, protection, and maintenance functions for neurons.
- Oligodendrocytes are the predominant cells in the white matter of the CNS.
- Astrocytes have long radiating, branching processes and can be classified into two types, fibrous and protoplasmic.
- Astrocytes also extend processes that associate with or cover synapses, affecting the formation, function, and plasticity of these structures.
Myelin Sheath Formation
- In the peripheral nervous system (PNS), Schwann cells form myelin sheaths.
Test your knowledge of basic and systematic nervous tissue in this ANAT2241 Histology quiz. Explore topics such as the structure and function of the nervous system, as well as histological features. Recommended resources for further reading are provided.
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