special senses Flashcards
Describe three anatomically different types of sensory receptors
Interoreceptors
exteroreceptors
proprioceptors
Interoreceptors
Monitor internal systems such as digestive and repiratory; are responsible for stretch, deep pressure, and pain in viscera
Exteroreceptors
External senses such as touch, temperature, and pressure and distance/special senses
Proprioceptors
Monitor position and movements
Explain the difference between a general sense and a special sense
General senses have receptors distributed widely throughout the body while special senses have receptors confined to head structures
Describe the process of transduction
translation of arriving stimulus into an action potential by sensory receptors
What senses does the frontal lobe control
taste and smell
What senses does the parietal lobe control
taste
What senses does the temporal lobe control
Hearing
difference between a sensation and a perception
A sensation is the sensory information arriving to the CNS while a perception is the conscious awareness of a sensation
Sensory adaptation
Ability to ignore unimportant stimuli
Peripheral adaptation
sensory receptors may stop sending AP even if stimulus is still present (room temperature)
Central adaptation
CNS ignoring an AP from a sensory receptor (house smell)
Example of sensory receptor responding to other stimuli
RUbbing your eyes and seeing flashes of light. the stimulus is mechanical and not visual but the receptors respond.
What is a labeled line?
A link between a peripheral sensory receptor and cortical neuron