Sensory & Motor Systems. Some vocabulary: Sensation Action potentials that reach the brain via sensory neurons Perception The brain’s awareness of sensations.

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Presentation transcript:

Sensory & Motor Systems

Some vocabulary: Sensation Action potentials that reach the brain via sensory neurons Perception The brain’s awareness of sensations Sensory & Motor Systems

Sensory transduction Change in membrane potential of a receptor cell (receptor potential) Integration Processing of information via the summation of graded potentials Sensory & Motor Systems

Light touch Touch Light touch

Sensory & Motor Systems Light touch Touch Strong pressure

Light touch Sensory & Motor Systems Light touch Touch Strong pressure Heat Cold

Light touch Sensory & Motor Systems Light touch Touch Strong pressure Heat Cold Pain

Mechanoreceptors Pressure, touch, stretch, motion, sound Muscle spindle Sretch Hair cells Motion Sensory & Motor Systems

Pain receptors (nociceptors) Thermoreceptors Chemoreceptors Gustatory receptors (taste) Olfactory receptors (smell) Electormagnetic receptors Photoreceptors Sensory & Motor Systems

Sensory transduction

Sensory & Motor Systems

Stimulus

Sensory & Motor Systems taste Stimulus

Sensory & Motor Systems taste sound Stimulus

Sensory & Motor Systems taste soundlight Stimulus

Sensory & Motor Systems taste soundlight pressure Stimulus

Sensory & Motor Systems taste Transduction

Sensory & Motor Systems taste Transduction

Sensory & Motor Systems taste Transduction Ca ++ Na +

Sensory & Motor Systems taste Neurotransmitter release Ca ++ Na +

Sensory & Motor Systems taste Neurotransmitter release Ca ++ Na +

Sensory & Motor Systems taste Action potential Ca ++ Na +

Sensory & Motor Systems Anatomy of the Eye

Lens Sensory & Motor Systems

Iris Sensory & Motor Systems

Pupil Sensory & Motor Systems

Cornea Sensory & Motor Systems

Suspension ligaments Sensory & Motor Systems

Sclera

Sensory & Motor Systems Choroid

Sensory & Motor Systems Retina

Sensory & Motor Systems Optic nerve

Sensory & Motor Systems Central artery & vein

Sensory & Motor Systems Optic disc (blind spot)

Sensory & Motor Systems Fovea

Sensory & Motor Systems Aqueous humor

Sensory & Motor Systems Vitreous humor

Sensory & Motor Systems Structure and Function of the Retina

Sensory & Motor Systems

Retinal Opsin

Sensory & Motor Systems Retinal Opsin Rhodopsin

Sensory & Motor Systems

RodsCones

Sensory & Motor Systems

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