Nervous system Flashcards
What is the central nervous system made up of?
The brain and spinal cord
The central nervous system is essential for processing and sending messages throughout the body.
How does the brain communicate with the body?
The brain is constantly in contact with all parts of the body
This communication is crucial for coordinating bodily functions.
What is the function of the spinal cord?
Carries messages between the brain and other parts of the body
The spinal cord uses nerves that run throughout the body for this communication.
What does the central nervous system do?
Sends and receives messages to various parts of the body
This function is vital for body coordination and response.
What is the peripheral nervous system?
A network of nerves that runs throughout the head, neck, and body
It plays a crucial role in connecting the central nervous system with the rest of the body.
What is the primary function of the peripheral nervous system?
Carries messages to and from the central nervous system
This allows for communication between the CNS and peripheral parts of the body.
What two systems make up the nervous system?
Central and peripheral nervous system
Together, they enable the body to process and respond to information.
What are the two components of the peripheral nervous system?
- Somatic nervous system
- Autonomic nervous system
These components have distinct functions regarding body control.
What does the somatic nervous system control?
Voluntary control of body movements via skeletal muscles
It is responsible for activities like walking and talking.
What does the autonomic nervous system regulate?
Involuntary physiological processes including heart rate, blood pressure, respiration, and digestion
This system controls functions that occur without conscious effort.
What are the two branches of the autonomic nervous system?
- Sympathetic nervous system
- Parasympathetic nervous system
These branches work together to maintain homeostasis in the body.
What is the role of the sympathetic nervous system?
Fight or flight response
It prepares the body to respond to perceived threats.
What is the role of the parasympathetic nervous system?
Rest and digestion response
It helps restore the body to a state of calm after stress.
What is the function of the sensory nervous system?
Detects messages from sensory organs
It plays a key role in how the body perceives the environment.
Fill in the blank: The central nervous system is responsible for _______.
[processing information and sending it to the peripheral nervous system]
True or False: The sympathetic nervous system is active during rest and relaxation.
False
The sympathetic nervous system is activated during stressful situations.
