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The figure shown is a homunculus of the star-nosed mole. The star- nosed mole has 22 fleshy appendages around its nose called vibrissae. A single vibrissae can give the animal information about texture and location of objects its surroundings. Which of the following statements are incorrect? * (A) Cortical magnification in star-nosed mole Dorsal Anatomical proportions 11 11 Mouth Ventral Proportion of cortex devoted to body regions This homunculus depicts that vibrissae take up a huge proportion of association and motor cortex. The larger the cortical area involved, the more sensitive the body region is. There is a high proportion of peripheral sensory neurons in the whiskers of rats and cats. Smaller receptive fields on the skin will give a larger two-point discrimination distance.

The figure shown is a homunculus of the star-nosed mole. The star- nosed mole has 22 fleshy appendages around its nose called vibrissae. A single vibrissae can give the animal information about texture and location of objects its surroundings. Which of the following statements are incorrect? * (A) Cortical magnification in star-nosed mole Dorsal Anatomical proportions 11 11 Mouth Ventral Proportion of cortex devoted to body regions This homunculus depicts that vibrissae take up a huge proportion of association and motor cortex. The larger the cortical area involved, the more sensitive the body region is. There is a high proportion of peripheral sensory neurons in the whiskers of rats and cats. Smaller receptive fields on the skin will give a larger two-point discrimination distance.

Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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The figure shown is a homunculus of the star-nosed mole. The star- nosed mole has 22 fleshy appendages around its nose called vibrissae. A single vibrissae can give the animal information about texture and location of objects its surroundings. Which of the following statements are incorrect? * (A) Cortical magnification in star-nosed mole Dorsal Anatomical proportions 11 11 Mouth Ventral Proportion of cortex devoted to body regions This homunculus depicts that vibrissae take up a huge proportion of association and motor cortex. The larger the cortical area involved, the more sensitive the body region is. There is a high proportion of peripheral sensory neurons in the whiskers of rats and cats. Smaller receptive fields on the skin will give a larger two-point discrimination distance.
Transcribed Image Text:The figure shown is a homunculus of the star-nosed mole. The star- nosed mole has 22 fleshy appendages around its nose called vibrissae. A single vibrissae can give the animal information about texture and location of objects its surroundings. Which of the following statements are incorrect? * (A) Cortical magnification in star-nosed mole Dorsal Anatomical proportions 11 11 Mouth Ventral Proportion of cortex devoted to body regions This homunculus depicts that vibrissae take up a huge proportion of association and motor cortex. The larger the cortical area involved, the more sensitive the body region is. There is a high proportion of peripheral sensory neurons in the whiskers of rats and cats. Smaller receptive fields on the skin will give a larger two-point discrimination distance.
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