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Questions and Answers
What are the two main parts of the nervous system?
What are the two main parts of the nervous system?
- Central Nervous System and Peripheral Nervous System (correct)
- Muscular System and Skeletal System
- Central Nervous System and Digestive System
- Immune System and Peripheral Nervous System
Which components are part of the Central Nervous System (CNS)?
Which components are part of the Central Nervous System (CNS)?
- Brain and spinal cord (correct)
- Brain and motor nerves
- Sensory nerves and motor nerves
- Spinal cord and motor nerves
What is the primary function of the nervous system?
What is the primary function of the nervous system?
- Producing hormones
- Communicating and coordinating body functions (correct)
- Protecting against pathogens
- Transporting nutrients throughout the body
Which of the following is not a part of a neuron?
Which of the following is not a part of a neuron?
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What is the role of the cranium?
What is the role of the cranium?
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What is the function of neurons in the nervous system?
What is the function of neurons in the nervous system?
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Which part of the nervous system includes sensory and motor nerves?
Which part of the nervous system includes sensory and motor nerves?
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Which vital functions are controlled by the central nervous system?
Which vital functions are controlled by the central nervous system?
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What type of cells are neurons?
What type of cells are neurons?
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Study Notes
Nervous System
- The nervous system is a network of nerves that connects the brain to every part of the body, enabling them to work together and communicate.
- It is divided into two parts: the Central Nervous System (CNS) and the Peripheral Nervous System (PNS).
Central Nervous System (CNS)
- Composed of the brain, spinal cord, and nerves.
- Controls vital functions necessary for living, such as:
- Breathing
- Maintaining body temperature
- Thinking
- Feelings
- Heartbeat
Brain
- Enclosed in a hard bony protective structure called the cranium (skull).
- Made up of soft nerve cells called neurons.
- Structure similar to a walnut.
Neurons
- Specialized nerve cells that are the basic structural and functional units of the nervous system.
- Parts of a neuron:
- Nucleus
- Cell body
- Dendrite
- Axon
- Nerve ending
- Responsible for communicating and coordinating the body's functions.
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