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Nervous System
Part 2
Supplemental Instruction
Iowa State University
BIOL 212 (2+3)
Dr. Mayfield
Supplemental Instruction
1060 Hixson-Lied Student Success Center  294-6624 
1.) What is part of the central nervous system?
a. The brain and the spinal cord
2.) What is part of the peripheral nervous system?
a. Arms, legs, basically nerves from parts of the body
3.) What does the autonomic nervous system do?
a. Control automatic responses
i. What is an example of an automatic response?
4.) What does afferent mean?
a. Input (hearing, sight, touch, etc.)
5.) What are the two divisions of the autonomic system that counter one another?
a. Sympathetic and parasympathetic
6.) What is a space in the vertebrate brain, filled with cerebrospinal fluid?
a. Brain ventricle
i. What is the purpose of cerebrospinal fluid?
1. To bring nutrients and hormones to the brain
7.) How many neurons does the human brain contain?
a. 100 billion
8.) What are the three main parts of the brainstem?
a. Medulla oblongata, pons, reticular formation
9.) What is the function of the medulla oblongata?
a. Functions in the autonomic system
10.)What is the function of the reticular formation?
a. Sensory input
11.)What is the other function of the brainstem?
a. Sleep
12.)Name one of the four functions of the cerebellum.
a. Balance, motor coordination, hand-eye coordination, and motor learning
13.)What are the thalamus and hypothalamus essential for?
a. Consciousness
14.)What part of the brain is most developed in humans?
a. Cerebrum
15.)What is the function of the cerebrum?
a. Site of thought and control of other brain functions
16.)What is the function of the neocortex?
a. Site of cognitive ability
17.)What percentage of the human brain mass is the neocortex?
a. 80%
18.)Where is the neocortex located?
a. Outermost layer of cerebral cortex
19.)What are the main functions of the right brain?
a. Register left body movements, pattern recognition, nonverbal ideas, etc.
20.)What are the main functions of the left brain?
a. Register right body movements, language, math, etc.
21.)What part of the brain is responsible for feeling?
a. Limbic systems
22.)What is the corpus callosum?
a. Connection between the right and left cerebral cortexes that allow communication
23.)How does human memory differ from computer memory?
a. We can place the present in the context of the remembered past and the imagined
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