Biology: The Unity and Diversity o...

15th Edition
Cecie Starr + 3 others
ISBN: 9781337408332



Biology: The Unity and Diversity o...

15th Edition
Cecie Starr + 3 others
ISBN: 9781337408332
Textbook Problem

In the ___, neurons are arranged like maps that correspond to different parts of the body surface.

  1. a. retina
  2. b. somatosensory cortex
  3. c. basilar membrane
  4. d. occipital lobe

Summary Introduction

Introduction: The somatic sensations originate at the sensory receptors in skin, joints, and muscle. The signals travel along the sensory neurons to spinal cord and then to the brain. They end up at the somatosensory cortex in the cerebral cortex.


Reason for the correct statement:

The sensory input signals from the body end up at somatosensory complex for processing. The cells that extend into body from brain are neurons. They detect sensations in skin, auditory stimuli, pain, or visual and send information to somatosensory complex. Neurons are arranged like maps in the somatosensory complex corresponding to different body parts.

Hence, option b. is correct.

Reasons for the incorrect statements:

Option a. is given as “retina”. Retina is light-sensitive tissue that lines the back of eye and has photoreceptors that respond to visual stimuli...

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