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Questions and Answers
Which of the following best describes the primary function of the autonomic nervous system?
Which of the following best describes the primary function of the autonomic nervous system?
- Transmitting sensory information from the eyes to the brain.
- Analyzing information and making decisions, such as walking faster.
- Controlling voluntary movements like walking and writing.
- Regulating involuntary actions of internal organs without conscious thought. (correct)
Speaking to a friend is an example of an action controlled by the autonomic nervous system.
Speaking to a friend is an example of an action controlled by the autonomic nervous system.
False (B)
Explain the role of sensory nerves in a voluntary action, providing an example.
Explain the role of sensory nerves in a voluntary action, providing an example.
Sensory nerves transmit information from the environment to the brain. For example, when seeing the time on a watch, sensory nerves send this visual information to the brain to assess the situation and decide on a course of action.
Voluntary actions are those which need ______ and which are performed by us knowingly.
Voluntary actions are those which need ______ and which are performed by us knowingly.
Match the type of action with the nervous system primarily responsible for controlling it:
Match the type of action with the nervous system primarily responsible for controlling it:
Flashcards
Nervous System
Nervous System
Controls internal body activities automatically and involuntarily.
Autonomic Nervous System
Autonomic Nervous System
Part of the peripheral nervous system that is self-governing.
Voluntary Actions
Voluntary Actions
Actions performed consciously, requiring thought.
Voluntary Nervous System
Voluntary Nervous System
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Voluntary Action Example
Voluntary Action Example
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Study Notes
- Mixed nerves carry both sensory and motor neurons.
- Cranial nerves originate from the brain, spread throughout the head, and carry both sensory and motor neurons.
- Visceral nerves are a special type, primarily arising from the spinal cord (though some originate from the brain), connecting to internal organs, and carrying both sensory and motor neurons.
Autonomic Nervous System
- "Autos" means "self" while "nomos" means "governing".
- "Autonomic nervous system" refers to the 'self-governing nervous system.'
- It is a part of the peripheral nervous system controlling organ activities automatically, without conscious thought.
- It controls and regulates the functions of the body's internal organs involuntarily.
Voluntary Nervous System
- Voluntary actions involve thinking and are performed knowingly.
- Examples of voluntary actions include speaking, writing, dancing, cycling, kicking a football, standing, or sitting.
- The voluntary nervous system allows actions under conscious brain control.
Example of Voluntary Action
- While walking to school at a slow pace, one might check the time and realize they are late.
- The steps taken when realizing that one is late for school:
- Eyes see the time and send info to the brain via sensory nerves.
- The brain analyzes the info and decides to walk faster due to tardiness.
- The brain sends walking instructions to the leg muscles through motor nerves.
- Leg muscles act and walk faster.
- This entire sequence is an example of voluntary action, initiated and decided by the voluntary nervous system.
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Description
The autonomic nervous system controls organ activities automatically, without conscious thought. The voluntary nervous system allows actions under conscious control, like speaking or writing. Mixed, cranial, and visceral nerves carry both sensory and motor neurons.
