Cns 3

Sensory Receptors Perceptions of the world are created by the brain (CNS) from info derived from the sensory receptors (neurons or epithelial cells) of the PNS. Receptors transduce (change) different forms of sensation into nerve impulses.

[object Object],Sensory receptor

Sensory Receptors ,[object Object],[object Object],[object Object]

Peripheral Sensory Receptors ,[object Object],[object Object],[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Senses

Sensory Receptors ,[object Object],[object Object],[object Object],[object Object]

Receptor Class by Location: Exteroceptors ,[object Object],[object Object],[object Object],[object Object]

Receptor Class by Location: Interoceptors ,[object Object],[object Object],[object Object]

Receptor Class by Location: Proprioceptors ,[object Object],[object Object],[object Object]

Receptor Classification by Stimulus Type ,[object Object],[object Object],[object Object],[object Object],[object Object]

Classification by Structure ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Simple Receptors: Free Nerve Endings ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Simple Receptors: Encapsulated ,[object Object],[object Object],[object Object],[object Object]

Simple Receptors: Encapsulated Table 13.1.2

From Sensation to Perception ,[object Object],[object Object],[object Object]

Transduction of Sensory signal to Nerve Impulses ,[object Object],[object Object],[object Object]

Receptor potential or Generator Potentials ,[object Object],[object Object],[object Object]

a a Deformation of the nerve ending results in opening of Na+ channels. Pressure Pacinian Corpuscle If depolarization above Threshold = AP

Properties of Receptors ,[object Object],[object Object]

Properties of Receptors ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Properties of Receptors ,[object Object],[object Object],[object Object],[object Object]

Response ,[object Object],[object Object],[object Object],[object Object]

Sensory Adaptation ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Properties of Receptors ,[object Object]

Sensory Modality Lateral inhibition

Properties ,[object Object],[object Object],[object Object],[object Object],[object Object]

Cns 3

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