click below
click below
Normal Size Small Size show me how
:)!
Study
Question | Answer |
---|---|
What is Sensation? | Conscious and subconscious awareness of changes in the external or internal environment |
What are the Components of sensation? | Stimulation of the sensory receptor → transduction of the stimulus → generation of nerve impulses → integration of sensory input |
What are the two Classification of Sensory Receptors? | General senses Somatic- tactile, thermal, pain and proprioceptive sensations Visceral- provide information about conditions within internal organs Special senses Smell, taste, vision, hearing, and equilibrium or balance. |
What are the Types of Sensory Receptors? | Free nerve endings Pain and thermoreceptors Encapsulated nerve endings Pacinian corpuscles Separate cells Hair cells, photoreceptors and gustatory receptor cells |
Generator potential: | is produced by free nerve endings, encapsulated nerve endings, and olfactory receptors. When it reaches a threshold, it triggers one or more nerve impulses in the axon of a first-order sensory neuron. |
Receptor potential: | triggers the release of neurotransmitter → postsynaptic potential → action potential |