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Nervous System

QuestionAnswer
What is the Central Nervous System made up of Brain + Spinal Cord
What is the Peripheral Nervous System made up of Nerves branch off from Spinal Cord - Somatic + Autonomic (Sympathetic+Parasympathetic)
What are the 3 Parts of the Brain Cerebrum/Cerebellum/Brain Stem
What is the largest part of the Brain Cerebrum
How many hemispheres does the Cerebrum have 2 - Divided into 4 lobes
What is the function of the Frontal Lobe Reasoning/learning
What is the function of the Occipital Lobe Interprets vision
What is the function of the Parietal Lobe Interprets language
What is the function of the Temporal Lobe Memory store
Where is the Cerebellum Lowest part of the brain - Posterior to pons
How many hemispheres does the Cerebellum have 2
What is the function of the Cerebellum Balance+ Coordination
What makes up the Brain Stem Mid Brain/Pons/Medulla Oblongata
What is the function of the Medulla Oblongata Controls HR/BR/BP
What is the function of the Reticular Activating System Increased alertness
What is the structure of the Spinal Cord 45cm long - thickness of little finger - Grey matter inside + White matter outside - Surrounded by meninges + CSF
What are Afferent fibres function Body to Brain
What are Efferent fibres function Brain to Body
What is the function of the Sensory Neurons Impulses from Periphery - Afferent
What is the function of the Motor Neurons Impulses from Skeletal Muscles - Efferent
What is the function of the Connector Neurons Links Motor + Sensory
What is the function of the Myelin Sheath Insulator + Increases speed of nerve impulses
What is a Simple reflex Arc A reflex that goes straight from Sensory neuron to Motor Neuron bypassing the Brain
What is Irritability Initiate nerve impulses in response to stimuli
What is Conductivity Ability to transmit impulses
Describe an Axon Carry impulse away from Cell body - Can be 1m Long - Forms White Matter
Describe Dendrites Carry impulses towards Cell Body
Describe Cell Body (Soma) Contains Nucleus - Forms Grey Matter
Describe Myelin Sheaths Protective Layer
Describe Schwann Cells Glial Cells that help form the Myelin Sheath
Describe Nodes of Ranvier Gaps of exposed Axon between Schwann Cells
What is a mass of nerves called Ganglia
What is a Plexus Large mass of Nerves
What are Bundle of Axons are called Plexus - 5 types Cervical Brachial Lumber Sacral Coccygeal
What are the 2 types of Efferent Nerves Somatic - Voluntary Autonomic - Cardiac + Smooth Muscle
What is the Synapse Small gap at the end of Neuron that allows signals to pass from each Neuron
What is the breakdown of the Peripheral Nervous System 12 Pairs of Cranial Nerves
What does the Phrenic nerve control Diaphragm
Name the 3 layers of the Meninges Dura Mater - Tough outer Arachnoid Mater - Contains CSF Pia Mater - Soft inner
What is the function of the Meninges Protection Maintain brains position
What is CSF and its functions Cerebrospinal Fluid Protection Buoyancy Regulation
How much CSF is there 125- 150ml
Where does the Brain get is blood supply Carotid + Vertebral Arteries - connected by Circle of Willis
What are the Stages of a Seizure Aura Tonic Clonic Postictal
Describe the Tonic phase of a Seizure Body goes Stiff/Rigid/Trismus/Eye Roll
Describe the Clonic phase of a Seizure Regular jerking movements
Describe the Postictal Phase State of Confusion/agitation/Drowsy - 20mins approx
Name some causes of Seizures Alcohol withdrawl/Epilepsy/Infections/Overdose/Trauma/ICP/Stroke
What is Status Epilepticus Seizure ongoing for >30mins or recurrent seizures where pt does not regain consciousness
What is the cause of Febrile Seizures Rapid rise in Temp
What is the managment of a Seizure Remove from Harm Maintain ABC O2 Midazolam Monitor Vitals - BG
What is the managment for a Febrile Seizure Cool pt - remove layers of clothing/remove from warm enviroment + give Paracetamol + then manage like other seizures
Created by: Meganp7290
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