senses
Terms
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- General senses Widely distrubuted
- pain touch pressure proprioception
- Special senses Localized area
- taste smell hearing sight
- 5 type of senses receptors
- chemoreceptors mechanoreceptors nocieptors thermoreceptors
- steps in sensory perception
- stimulus receptor conducted translated interpreted
- accommodation
- mechanism that allows the eye to focus at various distances, primarily achieved by changing the curvature of the lens
- Chemoreceptor
- a sensory receptor that detects the presence of chemicals; responsibl for taste, smell, and monitoring the concentration of certain chemicals in body fluids
- mechanoreceptor
- a sensory receptor the responds to a bending or deformation of the cell; examples include receptors for touch, pressure, hearing, and equilibrium
- Nociceptor
- a sensory receptor that responds to tissue damage; pain receptor
- photoreceptor
- a sensory receptor that detects light; located in the retina of the eye
- proprioception
- sense of position, or orientation, and movement
- proprioceptor
- a type of mechanoreceptor located in muscles, tendons, and joints that provides information about body position and movements
- Thermoreceptor
- a sensory receptor that detects changes in temperture
- sensory adaptation
- It is the way our body adapts to new experiences, or diminished sensitivity as a consequence of constant stimulation.The way you adjust to smell, touch, and sound are all covered by sensory adaptation. For example, when you first get into a pool, and it's freezing cold. In a few minutes, the water becomes nice and you forget about the temperature altogether.
- sensory adaption eye sight
- Why is it that after staring at something for a long period of time, we continue to see it? The object doesn't disappear because our eyes are in constant movement.
- Superior rectus Extrinsic (skeletal) muscle
- Oculomotor (111) 3 Elevates eye or rolls it superiorly and toward mid line
- Inferior rectus Extrinsic (skeletal) Muscles
- oculomotor (111)3 Depresses eye or rolls it inferiorly and toward midline
- Medial rectus Extrinstic
- Oculomotor (111) 3 moves eye medially, toward mid line
- LATERAL RECTUS Extrinstic
- Abducens (VI) 6 MOVES EYE LATERALLY AWAY FROM MIDLINE
- SUPERIOR OBLIQUE Extreinsic
- Trochlear (IV) 4 DEPRESSES EYE AND TURNS IT LATERALLY, AWAY FROM MIDLINE
- Inferior oblique Extrinsic
- Oculomotor (III) 3 Elevates eye and turns it laterally, away from midline
- Ciliary Intrinsic (smooth) muscle
- Oculomotor (III) 3 Causes suspensory ligament to relax, lens becomes more convex for close vision
- Iris, circular muscle Oculomotor (III) 3 Parasympathic fibers
- Intrinsic (smooth) muscle decreases size of pupil to allow less light to enter eye
- Iris, radial muscle parasympathic fibers sympathic fibers from spinal nervees
- Intrinsic Increases size of pupil to allow more light to enter eye
- Rods
- long, slender projections
- Cones
- Short, thick projections
- Location Concentrated in fovea centrails; decrease in density away from fovea centrails
- Cones
- Rhodopsin
- Photosensitive pigment in the rods; also called visual purple
- Gustatory
- Taste
- Taste
- hear
- touch
- smell
- sight
- see