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ETM Nervous system

Basic overview of nervous system for exercise to music qualification

QuestionAnswer
What are the three main functions of the nervous system? 1. Sensory: To sense changes occurring inside and outside the body 2. Integrative: To analyse and interpret incoming information 3. Motor: Respond to interpretation by activating relevant body system.
What is homeostasis? Homeostasis ensures balance within the body to enable it to operate effectively and efficiently
There are two main sections to the nervous system, what are they? 1. Central Nervous System (CNS) 2. Peripheral Nervous System (PNS)
The Central Nervous System comprises of the brain and spinal cord, what happens within the CNS? 1. All information is sent here from other systems, collected and analysed, in readiness for response.
What are the three areas of the brain (cerebral hemispheres)? 1. Sensory: receive impulses from the PNS from our sense organs (eyes, ears etc.) 2. Motor: Send messages back via the PNS to activate the body systems 3. Association: Connected with our memories, thoughts and emotions.
How many nerves extend from the CNS to form the PNS? 31 pairs of nerves extend from the CNS supplying all other parts of the body.
What are the terms for the voluntary and involuntary branches of the Peripheral system? 1. Somatic: Voluntary actions that we have control over 2. Autonomic: Involuntary actions, like digesting food or breathing
The autonomic branch of the PNS can be further divided into two parts, what are the terms used to describe these parts? 1.Parasympathetic: Breaks e.g. reducing heart rate when cooling down from exertion. 2. Sympathetic: Accelerator e.g increasing heart rate during exercise
What are nerve cells also called? 1. Neurons
Which three basic components are comprised within a nerve cells? 1. Dendrites: transmit nerve impulses towards the cell body 2. Cell body: responsible for directing information 3. Axon: transmits nerve impulse away from the cell body
The conduction of information along the nerves requires neurotransmitters, what are they? 1. A chemical produced by nerve cells that allow the nerve signal to 'jump' from one nerve to the next. 2. Allows the brain to interpret signals from the periphery and to respond mechanically
What are the two types of neurons? 1. Motor: Transmit impulse messages from the brain to the muscles or glands 2. Sensory: transmit messages from sensory organs to the brain.
Nervous system responses can be improved with regular training. What are the benefits of regular motor skill training? 1. Strengthen and grow new connections 2. Speed up the frequency of nerve impulses to motor units (reaction times, memory recall) 3.Improve synchronous recruitment of motor units resulting in stronger muscle contraction.
What are the three impacts of ageing on our nervous system? 1. Deterioration in the manufacture of neurotransmitters 2. Deranged architecture of the nerves resulting in slower central processing time 3. Blood supply can become poorer A faulty nervous system can impact balance also and increase the risks of fa
Created by: 508872840
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