Neurological OSCE Exam Questions Flashcards
Types of Stroke and ratio
Ischaemic (85%) -
Haemorrhagic (15%)
Status Epilepticus
Serial seizures without recovery of consciousness or tonic/clonic >30mins
Encephalitis
Inflamation of the brain parenchyma (nervous tissue n the brain)
Virus, bacteria, rabies, syphilis, malaria, lyme disease
Meningeal signs (may also have meningitis).
Meningitis
Inflamation fo the meninges and CSF
Bacterial, viral, fungal infections, cancer, lupus, drugs
Neck stiffness, vomitting, back/neck pain, blurred visions, photphobia, fever, ALOC
Meninges
Dura mater (2 layes - furthest from CNS)
Arachnoid mater
Pia Mater (inside - nearest CNS)
Myasthenia Gravis
Autoimmune disease - anti-body mediated destruction of acetylcholine receptors at neuromuscular junctions
Guillain Barre Syndrome
Actue inflammatory demyelinating polyneuropathy
Immune respose to foreing antigens but mistrageted to host nerve tissue
Altered transmission of electrical impulses along PNS
(CNS not affected)
Grey and White Matter
Grey matter = cell bodies, dendrites and axon terminals
White matter = axons connectign grey matter
Grey matter on outside of brain and inside of spinal cord.
Multiple sclerosis
Autoimmune disease - immune sytem attacks myelin sheaths around nerves in brain and spinal cord
Motor neurone disease
Group of progressive neurological disorders where motro neuron cells are destroyed
Parkinsons
Degenerative disorder of the CNS - isufficient formation of dopamine - decreased stimulation of motor cortex by basal ganglia
GCS
Eyes - Spontaneous, Speech, pain, None
Verbal - Orientated, Disor, Inap, Incomp, None,
Motor - Obeys, Localises, Withdraws, Flex, Exte, None
Functions of the NS
Receive impulses from insside and outside body,
Convey impulses from brain to stimulate or depress activity in muscles, glands and other tissues
Integrate the different functions carried out by organs, tissues, cells…
Types of receptors
- Chemoreceptors –detect chemical changes. Smell, taste, hormone detection, acid base balance, etc.
- Mechanoreceptors. Pacininan corpuscle, responds to bending stretching or pressing of the receptor membrane.
- Baroreceptors. Pressure receptors
- Proprioceptors. Sense of position
- Nociceptors. Pain detection.
- Thermo receptors. photoreceptors, rods and Cones. Olfactory receptors.
The PNS is made up of
12 pairs of cranial nerves
31 Pairs of spinal nerves
Efferent divided into 2: Somatic (those acting on skeletal muscle) and Autonomic (those acting on autonomic control systems)
Autonomic = Sympathetic (speed up), Parasympathetic (slow down)