Standardized Test Prep

Multiple Choice

1. The largest and most prominent part of the human brain is the

   1. cerebrum.

   2. cerebellum.

   3. thalamus.

   4. brain stem.

2. The point of connection between two neurons is called a

   1. threshold.

   2. synapse.

   3. neurotransmitter.

   4. dendrite.

3. The part of a neuron that carries impulses away from the cell body is called a(n)

   1. axon.

   2. dendrite.

   3. vesicle.

   4. synapse.

4. The minimum stimulus level that will cause a neuron to produce an action potential is called the

   1. resting potential.

   2. impulse.

   3. threshold.

   4. synapse.

5. The part of the brain responsible for collecting sensory input from the body and relaying it to appropriate brain centers is the

   1. limbic system.

   2. thalamus.

   3. cerebellum.

   4. cerebrum.

6. The major function of the spinal cord is

   1. emotional learning and memory storage.

   2. control of voluntary muscle movements.

   3. fine control of detailed muscle movement.

   4. a principal communication path between the brain and the rest of the body.

7. Involuntary activities carried out throughout the body are the primary responsibility of the

   1. somatic nervous system.

   2. autonomic nervous system.

   3. spinal cord.

   4. limbic system.

8. The part of the eye that contains photoreceptor cells is the

   1. cornea.

   2. iris.

   3. retina.

   4. optic nerve.

Questions 9–10

Blood alcohol concentration (BAC) is a measure of the amount of alcohol in the blood per 100 mL of blood. In some states, if a driver has a BAC of 0.08 percent, he or she is considered legally drunk. The table below lists an average BAC as alcohol consumption increases. Use the information in the table to answer the questions.

d

9. How many drinks in one hour would cause a 63 kg person to have a BAC of 0.08 percent?

   1. 1

   2. 3

   3. 5

   4. 7

10. If a 54 kg person had 3 drinks in one hour, what would his or her BAC percentage be?

    1. 0.06

    2. 0.08

    3. 0.09

    4. 0.11

Open-Ended Response

11. How do the parasympathetic and sympathetic nervous system work together in the body?

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