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HW/ ch 16
Anatomy and Physiology = Bio 2020; CH 16
| Term | Definition |
|---|---|
| The sense of taste is heavily influenced by the olfactory sense as well. | True |
| Stimulus Modality | Thermoreceptors; Chemoreceptors; Photoreceptors; Nociceptors |
| Stimulus Origin | Interoreceptors; Exteroreceptors |
| Receptor Distribution | Receptors widely distributed in the skin; Receptors associated with cranial nerves |
| Anterior two-thirds of the tongue | Facial nerve VII |
| Posterior one-third of the tongue and the superior pharynx | Glossopharyngeal nerve IX |
| Epiglottis | Vagus nerve X |
| Age-related loss of taste can be due to a(n) __________ number of sensory receptors | decreased |
| Age-related loss of vision can be due to a(n) __________ rigidity of connective tissue | increased |
| Age-related loss of hearing can be due to a(n) __________number of hair cells | decreased |
| Age-related loss of balance can be due to a(n) __________number of hair cells | decreased |
| Receptors | Act as transducers; Maintain a resting membrane potential; May respond to different energy forms; Convert various energy forms to electrical energy |
| Neurons | Maintain a resting membrane potential; Only respond to electrical energy |
| Large Receptive Field | Detects general region of stimulus only; Higher energy cost |
| Small Receptive Field | Greater specificity of location; More efficient use of surface area; Lower energy cost |
| Tonic | Respond continuously; Sensitivity remains constant; Nociceptors continually detecting pain; Inner ear cells detecting head position |
| Phasic | Respond to change; Sensitivity decreases over time; Skin receptors detecting clothing; Thermoreceptors adjusting to ambient temperature |
| Gener Senses | Somatic sensory receptors; Visceral sensory receptors; Touch receptors; Proprioceptors |
| Special Senses | Located only in head; Structurally complex; Photoreceptors in the eye; Chemoreceptors for smell |
| Stimulus Origin | Exteroreceptors; Interoceptors; Proprioceptors |
| Modality of Stimulus | Chemoreceptors; Thermoreceptors; Baroreceptors |
| If a receptor's receptive field is ___________, it allows for greater specificity of localization. | small |
| A pressure receptor in the skin could be classified as a(n) | somatic sensory receptor |
| Why is visceral pain sometimes localized incorrectly? | Visceral sensory neurons travel along the same pathway as many somatic sensory neurons |
| Walking into a room and recognizing the smell of a favorite dish is an example of a sensation | True |
| Na+ | Salty |
| Acidic compounds | Sour |
| Sugars, some other carbohydrates, and some proteins | Sweet |
| Alkaloids/base compounds | Bitter |
| Amino acid glutamate and related compounds | Umami |
| Artificial sweeteners | Sweet |
| Beef | Umami |
| The papillae on the tongue that do not contain any taste buds are the ________ papillae. | filiform |
| The papillae that are fewest in number, but contain the most taste buds, are the _________ papillae. | vallate |
| When a generator (receptor) potential reaches threshold, an action potential will be produced. | True |
Created by:
svalde1907
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