Learning Aim, A: Understand the interrelationship and nervous control of the cardiovascular and
respiratory systems:
A. P1 Describe the organisation and function of the nervous system in relation to cardiovascular
and respiratory requirements.
A.M1 Explain how nervous impulses are initiated, transmitted and coordinated in the control of
the cardiovascular and respiratory systems.
A.D1 Assess the role of the nervous system in coordinating the cardiovascular and respiratory
systems.
A.P1 Describe the organisation and function of the nervous system in relation to cardiovascular
and respiratory requirements.
The organisation of the nervous system:
The nervous system is able to control the activities of its various
tissues and organs by detecting a stimulus and generating suitable
responses. This process is done through nerve impulses, hormones
or combination of both. Without the presence of the nervous
system, complex processes such as movement, thoughts and
memory and involuntary responses such as breathing and blinking
would not occur. The nervous system uses electrical impulses called
neurons to send signals around your body. These signals then travel Introduction to neuroanatomy (no date)
through your brain, glands, skin, organs and muscles. They take in Physiopedia. Available at: https://www.physio-
pedia.com/Introduction_to_Neuroanatomy
information about your surroundings and obtain that data from your (Accessed: January 25, 2023).
brain.
The nervous system is divided into two systems: Central nervous system
and Peripheral nervous system. The CNS consists of the brain and spinal
cord. The brain uses the nerves to send signals to the rest of the body.
The nerves are protected by the myelin sheath which insulates the nerves
and allows the message to get through. The PNS consists of many nerves,
branching out from the CNS and all over your body. This process relays
information from the brain and spinal cord to the organs. The PNS
Types of neurons (2022) Queensland Brain
consists of two types of nervous systems: Somatic and Autonomic Institute - University of Queensland. Available at:
nervous system. The somatic nervous system regulates your voluntary https://qbi.uq.edu.au/brain/brain-anatomy/type
s-neurons (Accessed: January 25, 2023).
movements whilst the autonomic nervous system regulates your
involuntary movements.
There are various types of neurones:
Sensory neurones: These are activated when there is a sensory input from the surroundings.
The inputs can either be physical or chemical which correspond to our five senses such as
touching a hot surface or being able to taste or smell.
Motor neurones: These are a part of the CNS which connect to muscles and glands
throughout our body. They transmit nerve impulses from the spinal cord to skeletal and
smooth muscles and are able to control all of our muscle movements. There are two types of
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