Last Flashcards
What is increased sensitivity to pain at site of injury and surrounding called?
Hyperalgesia
What is pain from a stimulus that is not normally painful called?
Allodynia
Which two areas are majorly involved in descending pain modulation?
Periaqueductal grey and raphe Magnus nucleus
What three different changes in spinal cord processes result in chronic pain?
Increased excitability, decreased inhibition and structural reorganisation
What protein complexes form a pore for electrical transmission across gap junctions between cells?
Connexin proteins
What does edrophonium do and what disease does it help to diagnose?
Blocks action of AChE so prolongs muscle stimulation.
Myasthenia Gravis
What is the name of the spongy layer of bone between the two compact lamina of the skull?
Diploe
What is the other term for the skull cap?
Calvarium
Between which two meningeal layers does the CSF lie?
Pia and arachnoid mater
What is the name of the protrusions of the arachnoid mater into the intracranial sinuses which allow CSF to travel back to the blood?
Arachnoid granulations
Tearing of the middle meningeal arteries leads to what type of haemorrhage?
Extradural
What type of haemorrhage will rupture of an aneurysm in the circle of Willis lead to?
Subarachnoid
What is the name of the place where the spinal dural sac ends?
Filum terminale
Between which vertebrae is lumbar puncture safe?
L2-4
Which 3 receptors sense crude touch?
Merkels discs
Ruffini end organs
Pacinian corpuscles
At what point do spinothalamic pathways decussate?
In the spinal cord anterior white commissure
Which area of the thalamus is involved in the DC/ML pathway?
VPL
Which part of the thalamus is the TTT involved with?
VPM
Other than trigeminal, which other three cranial nerves lead to spinal tract V?
Facial, glossopharyngeal and vagus
Which side of the cerebellum do the spinocerebellar tracts project to?
Ipsilateral
Is Broca’s area more anterior or posterior than Wernicke’s?
Anterior
What is the term given to the circuit of the limbic system?
Papez circuit
Which part of the limbic system is associated with anxiety/fear/panic?
Locus coeruleus
What is the term when dead bone acts as a foreign body?
What is new bone generated by osteoblasts called ?
Sequestra
Involucrum