Campbell Biology
Campbell Biology
12th Edition
ISBN: 9780135188743
Author: Urry
Publisher: PEARSON
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Chapter 49.1, Problem 2CC
Summary Introduction

To explain: The effect of sensation on the fingers, in which a small nerve required to move hand get severed.

Concept introduction: Nerves are essential for carrying the motor and sensory signals in the nervous system.

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DRAW IT The reflex that pulls your hand away when you prickyour finger on a sharp object relies on a neuronal circuit withtwo synapses in the spinal cord. (a) Using a circle to represent across section of the spinal cord, draw the circuit. Label the typesof neurons, the direction of information flow in each, and thelocations of synapses. (b) Draw a simple diagram of the brainindicating where pain would eventually be perceived.
Your friend’s cerebral blood vessel burst on account of high blood pressure and a high platelet count. After a few weeks of rehabilitation he can neither feel his fingers nor can he walk easily. Will this lack of sensation and motor abilities ever go away
M Which of the following presents the elements of a sensory system in the correct order? Select one: Accessory structure modifies energy and sensory nerves transfer activity to central nervous system, thalamus processes and relays activity to cerebral cortex, cerebral cortex transfers input to accessory structures and sensation or perception is produced. Accessory structure modifies energy, receptor transduces energy into neural activity, sensory nerves transfer activity to central nervous system, thalamus processes and relays activity to cerebral cortex, cerebral cortex receives input and produces sensation and perception. Ob. C. External receptors transduce energy into neural activity, sensory nerves transfer activity to central nervous system and relays activity to cerebral cortex, cerebral cortex receives input and produces sensation and perception. O d. Accessory structure modifies energy, receptor transduces energy and thalamus processes and relays activity to the reticular…
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The Sensorimotor System and Human Reflexes; Author: Professor Dave Explains;https://www.youtube.com/watch?v=M0PEXquyhA4;License: Standard youtube license