15 Questions
What are the three main parts of the nervous system?
Central Nervous System, Peripheral Nervous System, and Autonomic Nervous System
What is the function of astrocytes?
Provide nourishment to neurons
What is the function of oligodendrocytes?
Produce myelin coating
What is the function of microglia?
Remove waste material, viruses, and fungi from the brain
What is the difference between the CNS and PNS?
CNS connects the brain and spinal cord to the rest of the body while PNS consists of axons conveying messages from the sense organs to the CNS and from the CNS to the muscles
What is the function of the somatic nervous system?
Conveys messages from the sense organs to the CNS and from the CNS to the muscles
What is the function of the autonomic nervous system?
Controls the heart, intestines, and other organs
What are the two subsystems of the autonomic nervous system?
Sympathetic and Parasympathetic
What is the function of the sympathetic nervous system?
Prepares the organs for rigorous activity
What is the function of Schwann cells?
Produce myelin coating
What is the function of the somatic nervous system?
Conveys messages from the sense organs to the CNS and from the CNS to the muscles
What is the function of the autonomic nervous system?
Controls the heart, intestines, and other organs
What are the two subsystems of the autonomic nervous system?
Sympathetic and Parasympathetic
What is the function of the sympathetic nervous system?
To prepare the organs for rigorous activity
What is the function of the parasympathetic nervous system?
To regulate the automatic behaviors of the body
Study Notes
Nervous System Structure
- The three main parts of the nervous system are the Central Nervous System (CNS), Peripheral Nervous System (PNS), and Autonomic Nervous System (ANS).
- The Central Nervous System (CNS) consists of the brain and spinal cord.
Functions of Glial Cells
- Astrocytes provide nutrients and oxygen to neurons, and remove waste products.
- Oligodendrocytes produce the myelin sheath that insulates and protects axons in the CNS.
- Microglia act as the immune system of the CNS, protecting it from infection and disease.
Nervous System Subsystems
- The Somatic Nervous System controls voluntary movements, transmitting signals from the CNS to muscles and glands.
- The Autonomic Nervous System (ANS) regulates involuntary actions, such as heart rate, blood pressure, and digestion.
- The Autonomic Nervous System has two subsystems: the Sympathetic Nervous System and the Parasympathetic Nervous System.
Functions of Nerve Cells
- Schwann cells produce the myelin sheath that insulates and protects axons in the PNS.
Autonomic Nervous System Functions
- The Sympathetic Nervous System stimulates the "fight or flight" response, increasing heart rate and energy levels.
- The Parasympathetic Nervous System promotes relaxation and reduces energy levels.
Explore the Fascinating World of Nervous System Cells: Neurons, Glial Cells, and Anatomy. Test your knowledge on the central and peripheral nervous system divisions. Learn the functions of different parts of neurons and glial cells. Discover the intricate workings of our nervous system in this insightful quiz.
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