Sensory Physiology Flashcards
where is sensory information transported to?
the sensory cortex for perception
types of receptors
photo, chemo, thermo, mechano, propio, noci
what is a mechanoreceptor?
senses pressure
what is a proprioceptor
info on body position
nociceptors
noxious stimuli - pain
what do sensory receptors do?
transduce different forms of energy into action potentials in sensory nerves
how big are very sensitive receptive fields?
smaller with greater sensitivity
when are action potentials generated by sensory receptors?
when generator potentials reach threshold for depolarization
the bigger the stimulus
the greater the number of action potentials
what is an important relay center for sensory information?
the thalamus
what are the sensory pathways to the brain?
medial lemniscal tract and the spinothalamic tract
