Divisions Of The Nervous System Flashcards
What is the nervous system?
A network is cells in the human body, the body’s internal communication system.
The nervous system is a ….. of …. in the human body, the body’s …… system.
Network
Cells
Internal communication
What is the function of the nervous system?
To collect, process and respond to information from the environment and to control organs and cells in the body
The …. of the nervous system is to …., and…. and ….. to information from the ….. and to ….. organs and cells in the body
Function
Collect
Process
Respond
Environment
Control
To collect, process and respond to information from the environment and to control organs and cells in the body. This is what?
The function of the nervous system
Mark scheme:
6 marks = structure, 1 role, 1 function of each
Can be asked specific questions about each part of the nervous system - structure, function (CNS—>ANS) (ANS—>CNS) , difference
Assessed on:
• structure = different sections
• difference between sections = roles/functions
Nervous system is broken down into what two things?
Central nervous system (CNS)
Peripheral nervous system (PNS)
What’s the CNS subdivided into?
Brain
Spinal cord
The brain and spinal cord are subdivisions of what?
CNS
A subdivision of the CNS is the brain.
What are the roles of the brain?
• Receives and processes information from the senses (e.g the visual cortex process visual information)
• The centre of conscious awareness
• Responsible for higher mental functions (e.g planning, thinking, language)
• Generates emotion and thoughts
• Initials responses
• Stores memories
The roles of the brain are:
• Receives and ….. information from the …. (e.g the visual cortex process visual information)
• The centre of ….. awareness
• Responsible for ….. (e.g planning, thinking, language)
• Generates …. and …..
• Initiates ….
• Stores ….
• processes, senses
• conscious
• higher mental functions
• emotion, thoughts
• responses
• memories
The brain receives and process information from where?
The senses e.g visual cortex processes visual info
The brain is the centre of what?
Conscious awareness
The brain is responsible for….
Higher mental functions
The brain generates emotions and….
Thoughts
The Brian initiates….. and stores…..
Responses
Memories
A subdivision of the CNS is the spinal cord. What are the roles of the spinal cord?
• Sends messages to and from the brain
• Connects nerves to the PNS
• Controls reflex actions (e.g removing a hand when it touches a hot plate)
The roles of the spinal cord are:
• Sends …. to and from the ….
• Connects …. to the ….
• Controls …. actions (e.g removing a hand when it touches a hot plate)
• messages, brain
• nerves, PNS
• reflex
The spinal cord conducts signals to and from where?
The brain
The spinal cord connects….to the PNS
Nerves
What does the spinal cord control?
Reflex actions
What does CNS stand for?
Central nervous system
What does PNS stand for?
Peripheral nervous system
What does ANS stand for?
Autonomic nervous system
What does SNS stand for?
Somatic nervous system
What’s the role of the peripheral nervous system?
Sends messages to and from the central nervous system via neurons.
(Helps the CNS communicate with the outside world)
The PNS sends …. to and from the central nervous system via ….
Messages
Neurons
PNS - Messages are sent via what? To and from what?
Neurons
CNS
What is the PNS subdivided into?
Autonomic nervous system
Somatic nervous system
What’s the role of the ANS?
• Responsible for involuntary responses for vital functions (e.g breathing, digestion, heart rate)
• Controls smooth (organs) and cardiac muscles (heart) and glands (salivary glands)
• ANS control centers are in the brain stem
A subdivision of the PNS is the autonomic nervous system. What are the roles of the ANS?
• Responsible for …… for …. (e.g breathing, digestion, heart rate)
• Controls ….. (organs) and ….(heart) and ….. (salivary glands)
• ANS …. centers are in the …
•involuntarily responses, vital functions
•smooth, cardiac muscles, glands
•control, brain stem
The ANS is responsible for what?
Involuntary responses for vital functions
The ANS controls what?
Smooth and cardiac muscles and glands
Where are the ANS control centers?
Brain stem
The autonomic nervous system is broken down into what two things?
Sympathetic branch
Parasympathetic branch
The sympathetic branch and the parasympathetic branch are part of what?
The ANS
What does the sympathetic branch responsible for?
Fight or flight response
What is the parasympathetic branch responsible for?
Conserve and restore body energy when relaxed
A subdivision of the PNS is the somatic nervous system. What are the the roles of the the SNS?
• Responsible for voluntary movements such as walking
• Transmits information from the brain to control skeletal muscles
• SNS carried commands from the motor cortex
• Connects the CNS and the sense and integrates the brain with the outside world
The roles of the SNS:
• Responsible for …. movements such as ….
• ….. information from the ….. to control …..
• SNS carried …. from the ….
• Connects the CNS and the … and integrates the …. with the ….
•voluntary, walking
•transmits, brain, skeletal muscles
•commands, motor cortex
•senses, brain, outside world
The SNS is responsible for what?
Voluntary movements such as walking
What SNS transmits information from where to where?
From the brain to skeletal muscles
The SNS Carrie’s commands from where?
Motor cortex
The SNS connects the CNS with what?
Sense and integrates the brain with the outside world
Comparing the ANS and the SNS.
ANS responsible for involuntary movements WHEREAS the SNS is responsible for voluntary movements.
ANS controls smooth and cardiac muscles and glands WHEREAS the SNS transmits informations the the brain to control skeletal muscles.
The ANS control centers and in the brain stem WHERAS the SNS Carrie’s command from the mirror cortex, and connects the CNS and the senses and inter greater the brain with the outside world.
