Nervous System Flashcards

Nervous System Flashcards
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Motor nervous system (motor division)
The efferent division of the peripheral nervous system that carries messages from your brain to your body to control your actions
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Sensory nervous system (sensory division)
Afferent division of the peripheral nervous system that senses information from the environment and sends it to the brain and spinal cord
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Sensory organs
Parts of your body that have high concentrations of sensory receptors to sense your environment, like your eyes, ears, hands, nose and mouth
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Sensory receptors
Cells found throughout your body that sense your environment and send information to your brain and spinal cord
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Nervous system
A complex body system made of cells and nerves working together to control your body
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Peripheral nervous system
The division of the nervous system that includes nerves traveling to and from the brain, like a highway
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Central nervous system
The division of the nervous system that consists of the brain and the spinal cord. It acts like the boss, sending orders to other parts of the body.
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Flashcard Overview

Get ready to explore the ultimate control center in your body, the nervous system. In this set of flashcards we're going to learn the different divisions of the nervous system and what they do. We'll start by dividing the nervous system into the central and peripheral. Then we'll look at two branches of the peripheral nervous system, sensory and motor. The motor nervous system can be divided even further into the somatic and autonomic branches. We'll also go over some examples about when each of these systems comes into play during your life.

Front
Back
Central nervous system
The division of the nervous system that consists of the brain and the spinal cord. It acts like the boss, sending orders to other parts of the body.
Peripheral nervous system
The division of the nervous system that includes nerves traveling to and from the brain, like a highway
Nervous system
A complex body system made of cells and nerves working together to control your body
Sensory receptors
Cells found throughout your body that sense your environment and send information to your brain and spinal cord
Sensory organs
Parts of your body that have high concentrations of sensory receptors to sense your environment, like your eyes, ears, hands, nose and mouth
Sensory nervous system (sensory division)
Afferent division of the peripheral nervous system that senses information from the environment and sends it to the brain and spinal cord
Motor nervous system (motor division)
The efferent division of the peripheral nervous system that carries messages from your brain to your body to control your actions
Somatic nervous system
Part of the motor nervous system that allows us to do tasks we consciously think about, like picking up a book or opening a window
Autonomic nervous system
Part of the motor nervous system that controls movements we don't have to think about, like breathing, heart rate or your digestive system
Involuntary movement
A type of movement controlled by the nervous system that we don't consciously decide to do, like keeping our lungs expanding and contracting, or our heart beating
Voluntary movement
Movements that we choose to perform, like reading a book or walking to school, which are controlled by the somatic division of your motor nervous system
Sympathetic nervous system
Part of the autonomic nervous system that causes your body to speed up during a fight or flight response, like if you walk in front of a moving car by accident
Parasympathetic nervous system
Part of the autonomic nervous system that slows your body down after a threat is over and allows you to relax, like when you nearly got hit by a flying ball, but managed to dodge it at the last second
Three functions of the nervous system

1. Interprets sensory information from the environment

2. Processes that information

3. Sends messages to the body to create a reaction, like movement

Divisions of the peripheral nervous system
Motor and sensory nervous systems

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