NERVOUS SYSTEM
The Nervous System is always active and uses Peripheral Nervous
electrical signals to send messages. It is a large System (PNS)
and complex network that helps the body
The Peripheral Nervous System (PNS)
communicate and coordinate its activities.
includes all nerves outside the CNS.
Components:
3 Main Parts Of The 12 pairs of cranial nerves (from the
Nervous System brain)
31 pairs of spinal nerves (from the
spinal cord)
Central Nervous
System (CNS) Functions:
Connects CNS to the rest
The Central Nervous System of the body
(CNS) consists of: Transmits information:
From body to CNS
Brain Spinal Cord (sensory input)
From CNS to body
Functions:
(motor output)
Serves as the control
center of the body
Responsible for: Automated
Coordination of body activities Nervous System
(ANS)
Decision-making
Processing information The Autonomic Nervous System
Thinking and reasoning (ANS) controls automatic body
Memory and learning functions.
Emotional responses Location:
Nerve pathways found in:
Central Nervous System (CNS)
Key Idea Peripheral Nervous System (PNS)
The Nervous System controls body Functions:
activities, maintains homeostasis, Heart rate and breathing
coordinates voluntary and regulation
involuntary actions, processes Blood pressure control
sensory information, Sends motor Digestion
responses Pupil response
Body temperature control
Personal Notes
Notes taken before, during, and after class sessions
Pictures are from Pinterest
DISCLAIMER: These notes are based on information gathered from lectures, textbooks, and various online sources. They are
intended for educational and study purposes only and may not represent complete or fully comprehensive material.
Accuracy is not guaranteed, and it is recommended to consult original sources or instructors for clarification when needed.
The Nervous System is always active and uses Peripheral Nervous
electrical signals to send messages. It is a large System (PNS)
and complex network that helps the body
The Peripheral Nervous System (PNS)
communicate and coordinate its activities.
includes all nerves outside the CNS.
Components:
3 Main Parts Of The 12 pairs of cranial nerves (from the
Nervous System brain)
31 pairs of spinal nerves (from the
spinal cord)
Central Nervous
System (CNS) Functions:
Connects CNS to the rest
The Central Nervous System of the body
(CNS) consists of: Transmits information:
From body to CNS
Brain Spinal Cord (sensory input)
From CNS to body
Functions:
(motor output)
Serves as the control
center of the body
Responsible for: Automated
Coordination of body activities Nervous System
(ANS)
Decision-making
Processing information The Autonomic Nervous System
Thinking and reasoning (ANS) controls automatic body
Memory and learning functions.
Emotional responses Location:
Nerve pathways found in:
Central Nervous System (CNS)
Key Idea Peripheral Nervous System (PNS)
The Nervous System controls body Functions:
activities, maintains homeostasis, Heart rate and breathing
coordinates voluntary and regulation
involuntary actions, processes Blood pressure control
sensory information, Sends motor Digestion
responses Pupil response
Body temperature control
Personal Notes
Notes taken before, during, and after class sessions
Pictures are from Pinterest
DISCLAIMER: These notes are based on information gathered from lectures, textbooks, and various online sources. They are
intended for educational and study purposes only and may not represent complete or fully comprehensive material.
Accuracy is not guaranteed, and it is recommended to consult original sources or instructors for clarification when needed.
