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Prep Gen Bio Final
LAB 10 TERMS
| Term | Definition |
|---|---|
| Special Senses | taste, smell, sight, hearing |
| Somatic Senses | touch, temperature, pain, body position, internal chemoreceptors |
| Propeoception | body position |
| Motor Nerve Endings | delivers information to effector organs |
| Layers of Tissue in the Eye | 1. Sclera 2. Choroid 3. Retina |
| Sclera | a tough white outer layer that is specialized at the front of the eye as the cornea |
| Choroid | a dark, heavily pigmented layer, specialized towards the front to form the iris |
| Retina | gray tissue-paper-like retina |
| Where are the rods and cones? | in the retina |
| Fovea | the highest concentration of photoreceptors, vision is the sharpest here |
| Blind Spot | occurs at the site where the neurons serving the retina leave the eyeball to form the optic nerve |
| Layers of the Retina | ganglion cells, bipolar cells, rods and cones, choroid(ordered front to back of the eye) |
| Meissner's corpuscles | near the skins surface and are good for light touch |
| Pacinian corpuscles | much deeper and sense pressure |