BIOLOGY-TEXT
5th Edition
ISBN: 9781260169621
Author: BROOKER
Publisher: MCG
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Chapter 48.10, Problem 1CS
Summary Introduction
To determine: The parts of the mammalian brain that comprises the brainstem.
Introduction: The brain represents the central organ of a nervous system. It is composed of three different regions, forebrain, midbrain, and hindbrain. The cerebrum is a part of the forebrain (the outermost region of the brain). The structure of the brain is made up of a huge number of neurons.
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Describe three characteristics of the mammalian brain that differ from other vertebrates.
Part 1: Structural Evidences- Comparing the Parts of the Brain
Test 1- Structural Characteristics of Whole Brains
Specimens of whole brains for humans and the three species (mouse, cat and baboon) were photographed from various
angles. Use the Whole Brains photographs in your kit to complete the following:
Cerebrum
1. Compare the structures of the whole brain from a human with the whole brains
from a mouse, a cat, and a baboon. Use the diagram on the right as a guide
when making your comparisons. Consider the presence or absence of different
brain sections and their relative sizes.
Cerebrum-Controls conscious sensation, voluntary movement, memory, and
decision-making
Brainstem
Cerebellum-Controls balance and posture
Cerebellum
Brainstem-Controls breathing and heart rate
Test 1: Whole Brains (not to scale)
Cat
Baboon
Mouse
Human
on the Data Table: Comparison of Mammalian Specles (Humans, Mice,
Chapter 48 Solutions
BIOLOGY-TEXT
Ch. 48.1 - Prob. 1CCCh. 48.1 - Prob. 1CSCh. 48.2 - Core Skill: Connections Leukocytes are part of the...Ch. 48.3 - Prob. 1CCCh. 48.3 - Prob. 2CCCh. 48.4 - Do erythrocytes enter and exit through pores in...Ch. 48.7 - Prob. 1CSCh. 48.7 - Prob. 1CCCh. 48.7 - Prob. 2CCCh. 48.8 - Prob. 1EQ
Ch. 48.8 - Prob. 2EQCh. 48.8 - Prob. 3EQCh. 48.9 - Prob. 1CCCh. 48.10 - Prob. 1CSCh. 48 - Prob. 1TYCh. 48 - Prob. 2TYCh. 48 - A major advantage of a double circulation is that...Ch. 48 - Prob. 4TYCh. 48 - For blood flow through a closed circulation, which...Ch. 48 - Prob. 6TYCh. 48 - The countercurrent exchange mechanism in fish...Ch. 48 - The tracheal system of insects a. consists of...Ch. 48 - Prob. 9TYCh. 48 - Prob. 10TYCh. 48 - Prob. 1CQCh. 48 - Prob. 2CQCh. 48 - Prob. 3CQCh. 48 - Prob. 1COQCh. 48 - List the components of the mammalian respiratory...
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- Test Your Understanding 8. VISUALIZE Label the diagram of the human brain.arrow_forwardQ1 If you create a big lesion in the hippocampus area of a rat's brain the rat will have trouble with what functions learning and memory motor control recognition of biological danger regulation of hunger and thirst Q2 A friend of yours who endured significant damage in the motor cortex in the right hemisphere is likely to not be able to walk at all because he will be paralyzed from the waist down. have some paralysis in the left side of his body. not be able to understand anything you say to him. have some paralysis on the right side of his body. Q3 Creating a lesion in a specific area of the brain allows researchers to identify stimuli that activate a particular part of the brain. identify the probable function of a specific brain area. observe individual ion channels in the membranes of neurons. observe the activity of a particular part of the brain. Q4 You just met the sibling of your roommate and discovered that even though the siblings are of the same sex…arrow_forwardVISUALIZE Describe the action taking place at each of the numbered steps in the figure.arrow_forward
- What is the main way in which mammalian species vary in the cerebral cortex?arrow_forwardTest your Understanding Know and Comprehend 1. A sensory receptor absorbs energy from some stimulus. The next step is (a) release of neurotransmitter (b) transmission of an action potential (c) energy transduction (d) transmission of a receptor potential (e) sensory adaptationarrow_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
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