BIOL-K - Biology BIOL-K 103 Lecture Notes - Lecture 11: Rinne Test, Cochlear Nerve, Oval Window
27 Apr 2016
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Nervous system: senses and responds to stimuli, cns brain/spinal cord, pns nerves. 3 ventricles, one under thalamus, test over 3rd and 4th ventricle. The senses: olfactory smell, auditory hearing, visual sight. Somatic senses: touch, pressure, pain, temperature, proprioceptors, several experiments. Density of receptors (pairs, one subject, one experimenter) Receptor fields (pairs, one subject, one experimenter) Temperature adaptation (pairs, one subject, one timer) Vision: light passes through corneas, aqueous fluid, lens, vitreous body, image forms on photoreceptor cells in retina, signal passes to bipolar cells, ganglion cells, to optic nerve, experiments. Peripheral vision (pairs, one subject, one experimenter: dissection. Auditory: sound waves enter via pinna, tympanic membrane vibrates, malleus, incus, stapes amplify, oval window vibrates, vibrations conducted through fluid, hair cells stimulated, cochlear nerve transmits to brain, experiments. Atp goes to camp and ion channels impacted: gustation. 5 tastes: sweet, salty, sour, biter, umami: olfactory. With combination, can perceive >10,000 scents: models/slides. Immune system: disease protection, innate vs adaptive.
