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- Watch this video (http://openstaxcollege.org/l/2point) to see a quick demonstration of two-point discrimination. Touching a specialized caliper to the surface of the skin will measure the distance between two points that are perceived as distinct stimuli versus a single stimulus. The patient keeps their eyes closed while the examiner switches between using both points of the caliper or just one. The patient then must indicate whether one or two stimuli are in contact with the skin. Why is the distance between the caliper points closer on the fingertips as opposed to the palm of the hand? And what do you think the distance would be on the arm, or the shoulder?is/are caused by an irregular curvature of the eye's cornea or lens. Hyperopia Astigmatism Blind spots EmmetropiaE A H C J D 'K Match the labelled eye structure with the correct eye condition or eye function. Contains the photoreceptors (rods and cones) Glaucoma results if this fluid is not drained properly Sensory neurons to the brain : Captures stray light and contains nourishing blood vessels Contains a high concentration of cones Cataracts can develop in this structure Refracts (bends) light rays into the eye The blind spot: no photoreceptors are located here Protects and supports the eyeball Supports the eyeball with the gel-like fluid The opening for light to enter the inner eye
- Fine touch :-a- is detected by slowly adapting touch receptorsb- is transmitted by the spinothalamic tractc- is characterized by it emotional affectd- is not involved in feeling the texture of touched objectsExplain the image and what’s going on.Binocular Vision.Two pencils are observed. True or False
- New Tab a docs.google.com/forms/d/e/1FAlpQLSfcb08kSEoX2nkHlw2TQntW-IHbohTvMGsXQmKO36VumnFnEQ/formResponse The synaptic inputs from horizontal cells on photoreceptor terminals: O is not involved in light adaptation have a depolarizing effect when GABA release is reduced reflect illumination level at a very narrow area of the retina are most active when the surround is not illuminated In the presence of light, the hyperpolarization of photoreceptors leads to: O hyperpolarization of « ON » bipolar cells an increase of glutamate release O a decrease of glutamate release Unlike the sclera, the cornea: O is at the back of the eye has a high concentration of melanin O15 the colored portion of the eye O O O O OCochlear duct Scala tympani Basilar membrane Spiral organ Tectorial membrane Scala vestibuli Vestibular membrane 0000 S ©2019 Pearson Education, Inc. 00What is the definition for Central Masking? I am having trouble understanding it from my Audiology textbook.
- What must happen to odorant and tastant molecules before they can be sensed? Search entries or author Unread 个 少 ReplyC. Watch the video found in the given link and answer the following questions. https://www.youtube.com/watch?v=bzhTRPp8iGg 1. What happens to the color intensity as the concentration of alcohol increases? Explain the underlying principle.Match the description with the eye structure. Question options: mucous membrane between eyelid and eyeball Clear part of fibrous tunic Photoreceptors that detect color. White part of fibrous tunic Deepest tunic that contains the photoreceptors. eyelid Becomes flat or round to see distance and up close. Photoreceptors that detect light. Smooth muscle that constricts and dilates - also the colored (green, blue, brown, etc.) portion of the eye. Opening in iris - regulates the amount of light that enters the eye. Change the shape of the lens for accommodation. Fluid that fills in the anterior cavity. Gel-like fluid that fills in the posterior cavity. 1. Palpebrae 2. Conjunctiva 3. Cornea 4. Sclera 5. Pupil 6. Iris 7. Suspensory ligaments 8. Lens 9. Aqueous humor 10. Vitreous humor 11. Retina 12. Rods…
