P1 PHYSIOLOGY Flashcards
mention the 2 main types of sensations
1- cutaneous / tactile
2- proprioceptive
what is stereognosis
Recognition of the shape of objects
what is topognosis
Recognition of the texture of surfaces
spacing of 2 points is known as
2 point discrimination
self movement and body position from muscles and joints is known as
Proprioception
crude touch , pressure & temperature are taken to the brain by which tract
antero- lateral spinothalamic tract
fine touch , vibration & proprioception are taken to the brain by which tract
DCML
Process of converting the energy of a stimulus into electrical signal is known as
Somatosensory transduction
Regarding types of receptors , which type receives sensation on the neuron itself
Generator potential
Generator receptor is found in
free nerve endings & encapsulated nerve endings
Regarding types of receptors , when receptors are separate cells that when active they will transmit the electrical signal
receptor potential
mention the 2 types of summation
- spatial
- temporal
stimulation by several presynaptic neuronsnis which type of summation
Spatial summation
high frequency stimulation by 1 presynaptic neurons is which type of summation
temporal summation
a specific pathway that transmits information about a specific modality is known as
labelled line
all the receptors of an afferent neuron can respond to adequate stimulus in an are is known as
Receptive field
are of skin that can elicit response in a single neuron is known as
receptive field
the precision of stimulation location depends on
1- size of receptive fields
2- density of receptors
Relation between receptive field size & the resolution
the smaller the field the greater the resolution
Relation between receptor density & the resolution
the greater the density the greater the resolution
