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Assignment #3 (Sensory Receptors Based on Type of Stimulus:…
Assignment #3
Sensory Receptors Based on Type of Stimulus:
Chemoreceptor: sensitive to chemicals (ex: chemicals we breathe)
Nociceptor: sensitive to pain (noxious-danger)
Photoreceptors: sensitive to light
Mechanoreceptor: sensitive to touch, vibration, pressure, stretch
Baroreceptor: (type of mechanoreceptor) ; sensitive to blood pressure
Thermoreceptors: sensitive to temperature, thermoreceptor for cold and for warm
Sensory Receptors Based on Stimulus Origin:
Interoceptors: stimulus from the interior of the body. These receptors are located inside your organs
Proprioceptors: sensitive to stimulus from muscle, tendons, ligaments, joints. It would be almost to walk without them
Exteroreceptors: stimulus from the environment. These receptors are located on the skin and special sense organs
Gross and Microscopic Anatomy of the Eye:
Vascular layer
Choroid: black layer that is VERY vascular. The choroid nourishes other tunics (especially the retina), absorbs light and prevents it from scattering, and is continous with the ciliary body. The muscle changes the shape of the lens
Inner layer
Retina: tan in color, very thin and delicate, takes up 5/6th of the eye. The retina contains photoreceptors- axons from receptors and they converge to become to optic nerve
Fibrous layer
Sclera: white layer made up of dense connective tissue that acts as an anchor for the muscle and gives shape to the eye
Cornea: transparent, allows light into eye, helps to focus light
