David_Lab5.labex23_24 - Krystal David Professor Jedlicka...

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Medical Terminology for Health Professions
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Chapter 10 / Exercise 10.17
Medical Terminology for Health Professions
Ehrlich
Expert Verified
Krystal David 4/2/17 Professor Jedlicka BIOS195 A. Sensory Receptors 1.Describe the function of sensory receptors.
2.Name the general sensory receptors that belong to each structural class.
(b) Encapsulated nerve endings
B. Sensory Pathways Match each term to the correct numbered phrase. cerebral cortex first-order neuron posterior (dorsal) root ganglion second-order neuron thalamus third- order neuron Cerebral cortex 1. Receives input from third-order neurons; sensory information is consciously perceived. Second-order neuron 2. Cell body located in spinal cord or brain stem. Thalamus 3. Gateway to cerebral cortex; location of synapse between second- and third-order neurons. First-order neuron 4. Neuron associated with sensory receptor. Third-order neuron 5. Relays sensory nerve impulses from thalamus to cerebral cortex. Posterior root ganglion 6. Cell body for first-order neuron located here. C. Tactile Sensitivity 1.Describe correlation between tactile density of a body area and the size of the cerebral cortex receiving information from those receptors. The greater the density of tactile recptors, the bigger the area receiving the information in the cerebral cortex. D. Adaptation 1.Define adaptation.
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Medical Terminology for Health Professions
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Chapter 10 / Exercise 10.17
Medical Terminology for Health Professions
Ehrlich
Expert Verified
2.Do warm receptors adapt quickly?
3.Do cold receptors adapt quickly?
1.Define referred pain.
2.After the subject’s elbow had been immersed in water for 2 minutes, where was the referred pain located? Explain.
Questions 1–3. Figure 23.4 shows a map of the specific areas of the primary somatosensory cortex that represent areas of the body. The cerebral cortex localizes the precise area of the body that sends sensory nerve impulses. Based on the size of the area represented on the cortex and the size of the body area, circle which body area has the greatest density of receptors:
2.The tongue or the toes: The tongue 3.The foot or the hand: The hand FIGURE 23.4: Somatosensory cortex.
Answer the following questions.

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