KINESIOL 1A03 Lecture Notes - Lecture 16: Lamellar Corpuscle, Bulbous Corpuscle, Intrafusal Muscle Fiber
21 Sep 2016
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Document Summary
Sensation conscious or subconscious awareness of changes in the external or internal environment. Perception conscious awareness and interpretation of sensations and is primarily a function of the cerebral cortex. Sensory modality each unique type of sensation touch, pain, vision, hearing a sensory neuron carries info for only one sensory modality. Sensory modalities can be grouped into two classes: general senses refers to both, somatic(body - things you"re aware of) senses include: Process of sensation: stimulation of sensory receptor. 2. transduction of stimulus sensory receptor transduces energy in a stimulus into a graded potential. Sensory receptors produce two different kinds of graded potentials in response to stimulus generator potential triggers one or more nerve impulses in the axon of a first-order sensory neuron. Resulting nerve impulse propagates along the axon into the cns, thus generator potentials generate action potentials receptor potential trigger release of neurotransmitter through exocytosis of synaptic vesicles.
