Test 7 Flashcards
Conscious or subconscious awareness of external or internal stimuli
Sensation
Conscious awareness and interpretation of the meaning of sensations
Perception
Unique type of sensation
Sensory modality
General senses include
Somatic
Visceral
Modalities of general senses
Tactile: touch, pressure, vibration, itch, tickle Thermal Pain Proprioception Dynamic sensations
Provide information about conditions within the internal organs
Visceral sensations
Special senses:
Smell Taste Vision Hearing Equilibrium
Events required for sensation:
Stimulation
Transduction
Generation
Integration
Sensory neurons that conduct impulses from PNS to CNS
First-order neurons
Classification by microscopic appearance
Free nerve endings
Encapsulated nerve endings
Separate cells
Bare dendrites; pain, thermal, tickle, itch, some touch
Free nerve endings
Dendrites in connective tissue capsule; pressure, vibration, some touch (Meisner)
Encapsulated nerve endings
Hearing/equilibrium, photoreceptors, gustatory receptors
Separate cells
Classification by location and activating stimuli
Exteroceptors, interoceptors, proprioceptors
Exteroreceptors sense
Sight, odor, taste, touch, pressure, vibration, thermal, pain