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12 Cards in this Set
- Front
- Back
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Two neurons synapse at a ganglion. The axon of the first neuron is long, while the second is short. Is this part of the SMNS or the ANS? State what division of the nervous system it belongs. |
ANS. Parasympathetic division
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Three cutaneous receptors and their functions?
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- Merkel's disk: light touch receptors - Pacinian corpuscles: pressure receptors + vibration - Hair follicle receptors: detect movement of hair |
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List the reasons for the conditions: volatile, partly water soluble, and partly fat soluble
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Volatile: the substance needs to evaporate into a vapor to become airborne Partly water soluble: to reach the olfactory hair it must get through the mucous layer Partly fat soluble: to get through the plasma membrane |
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Identify structures
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a) auricle b) external auditory meatus c) tympanic membrane d) auditory ossicles e) semicircular canals f) cochlea |
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Which structure contains the cupula?
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The semicircular canals
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Which structure contains the organ of hearing?
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The tympanic membrane
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When a sound wave hits your ear, which is the first structure that begins to vibrate? Which is the last?
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Tympanic membrane. Tectorial membrane.
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Identify the structures and the function
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a) lens b) sclera c) optic nerve d) vitreous humor e) retina f) choroid g) conjunctiva h) posterior chamber i) anterior chamber j) cornea k) pupil l) iris m) suspensory ligaments - attaches ciliary body to lens n) ciliary body |
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Which of the structures are involved in the process of accommodation?
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Lens, ciliary body and suspensory ligaments
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Which two structures are most important in terms of bending light for the purpose of focusing?
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The lens and cornea |
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Where are the rods and cones found? Where are the cones concentrated?
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Retina. Fovea centralis.
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Which structure should be investigated if a person has problems standing still?
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ultricular macula
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