Principles of Biology
2nd Edition
ISBN: 9781259875120
Author: Robert Brooker, Eric P. Widmaier Dr., Linda Graham Dr. Ph.D., Peter Stiling Dr. Ph.D.
Publisher: McGraw-Hill Education
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Chapter 33.6, Problem 1CC
Summary Introduction
To analyze:
The three major divisions of hindbrain, midbrain and forebrain are unique to humans, to mammals specifically.
Introduction:
The brain is a part of the nervous system and acts as a central controlling organ of the body. Brain along with spinal cord constitutes the central nervous system. Hindbrain, midbrain, and forebrain are the three divisions of the brain.
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Chapter 33 Solutions
Principles of Biology
Ch. 33.1 - Which of the following is false? The CNS of...Ch. 33.1 - Prob. 2TYKCh. 33.1 - Prob. 1CCCh. 33.2 - Prob. 1CCCh. 33.2 - Prob. 1BCCh. 33.2 - Prob. 1TYKCh. 33.2 - The resting membrane potential occurs because the...Ch. 33.3 - Are ions the only substances that can move through...Ch. 33.3 - Prob. 1CCCh. 33.3 - Prob. 2CC
Ch. 33.3 - Which is false? Graded potentials may die out or...Ch. 33.3 - Action potentials require a threshold potential...Ch. 33.4 - Prob. 1CCCh. 33.4 - Prob. 1TYKCh. 33.4 - Prob. 2TYKCh. 33.5 - Prob. 1BCCh. 33.5 - Prob. 1TYKCh. 33.5 - Prob. 2TYKCh. 33.6 - Prob. 1CCCh. 33.6 - Prob. 2CCCh. 33.6 - Prob. 3CCCh. 33.6 - Prob. 1TYKCh. 33.6 - Prob. 2TYKCh. 33.7 - Prob. 1TYKCh. 33.7 - Therapeutic drugs that reduce symptoms of...Ch. 33 - Prob. 1TYCh. 33 - Prob. 2TYCh. 33 - Prob. 3TYCh. 33 - Neurons that function mainly in connecting other...Ch. 33 - Prob. 5TYCh. 33 - Prob. 6TYCh. 33 - Prob. 7TYCh. 33 - Prob. 8TYCh. 33 - Prob. 9TYCh. 33 - Prob. 10TYCh. 33 - Describe the differences between graded and action...Ch. 33 - Prob. 2CCQCh. 33 - Prob. 3CCQCh. 33 - Prob. 1CBQCh. 33 - Prob. 2CBQ
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- Mention the function of the hind-brain in humans?arrow_forwardWhich part of the vertebrate brain maintains posture, muscle tone, and equilibrium? (a) cerebrum (b) medulla (c) cerebellum (d) neocortex (e) thalamusarrow_forwardOverall, mammalian brains are more complex than the brains of fish and amphibians. Does this increased complexity make mammals more advanced and fish and amphibians more primitive? Why or why not?arrow_forward
- Which of the following are NOT trends that have occurred during the evolution of the central nervous system in invertebrates? A)none of the above – all are trends B)The positioning of nerve chords at the ventral end of the animal C)The development of sensory structures for the detection of gravity, sound and light D)Increasing the size of cerebral ganglia and formation of a “brain” E)The processing of sensory information by neural ganglia and the generation of motor commandsarrow_forwardWhich two details provide the best evidence that masses of neurons act as brains within different parts of the octopus?arrow_forwardA radially symmetrical animal such as Hydra is likely to have (a) a forebrain (b) a nerve net (c) cerebral ganglia (d) a ventral nerve cord (e) cerebral ganglia and a nerve netarrow_forward
- According to the five principles of functional organization apply to all mammalian and most vertebrate brains, Vertebrate brain evolution has involved repeated expansion of forebrain areas. Explain why.arrow_forwardHow would you design an experiment to demonstrate the organizing influence of the midbrain/hindbrain border and what is the molecular basis for this organizing ability?arrow_forwardHow does a vertebrate spinal cord differ morphologically from nerve cords of invertebrates?arrow_forward
- Describe the cnidarian (radiate) nervous system. How is a tendency toward centralization of the nervous system manifested in flatworms, annelids, molluscs, and arthropods?arrow_forwardWhat are the similarities and differences between shark and sheep brains? What makes them distinct?arrow_forwardAccording to the five principles of functional organization apply to all mammalian and most vertebrate brains, Neural circuits are plastic. Explain why.arrow_forward
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