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Which of the following was the key characteristic of early humans that allowed them to effectively out-compete other species?

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Question 1 of 20 5.0 Points

Which of the following is a key a function of the glial cells?

 

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A. Protection of the outer surface of the brain

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B. Removal of physical debris from the brain

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C. Secretion of CSF in the brain

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D. Movement of vesicles along the axon

Question 2 of 20 5.0 Points

__________ neurons gather information from the environment related to light, odors, and contact of our skin with objects.

 

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A. Sensory

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B. Motor

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C. Inter-

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D. Relay inter-

Question 3 of 20 5.0 Points

The difference in electrical charge between the inside and the outside of the axon membrane is defined as the __________ potential.

 

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A. membrane

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B. local

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C. glial

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D. action

Question 4 of 20 5.0 Points

__________ is thought to be an advantage associated with the development of color vision in primates.

 

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A. The ability to breed at night

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B. The ability to move in the forest at night

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C. The capacity to discriminate ripe from unripe fruit

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D. The capacity to communicate using symbols

Question 5 of 20 5.0 Points

Synaptic vesicles are produced in the:

 

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A. neuron soma.

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B. dendrites.

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C. glial cells.

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D. neuron lysosomes.

Question 6 of 20 5.0 Points

The most common neuron type in the central nervous system is the __________ neuron.

 

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A. multipolar

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B. apolar

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C. sensory

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D. bipolar

Question 7 of 20 5.0 Points

A drug that inactivates the enzyme acetylcholinesterase would be expected to:

 

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A. prolong the effects of acetylcholine in the synapse.

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B. terminate the effects of acetylcholine in the synapse.

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C. speed up the synthesis of acetylcholine.

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D. impair the synthesis of acetylcholine.

Question 8 of 20 5.0 Points

Johannes Müller proposed:

 

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A. an important role for natural selection in the evolution of behavior.

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B. that language is a function of the right hemisphere.

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C. that the brain is divided into different functional areas with each receiving signals from a different set of nerves.

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D. that the pineal body allows the brain to control the mind.

Question 9 of 20 5.0 Points

__________ are physicians trained to diagnose and to treat central nervous system diseases.

 

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A. Psychologists

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B. Neurologists

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C. Anatomists

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D. Behavioral neuroscientists

Question 10 of 20 5.0 Points

A large, dense-core vesicle found in the axon terminal is likely to contain:

 

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A. peptide neurotransmitters.

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B. neurotransmitter receptors.

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C. enzymes that degrade transmitter molecules.

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D. synthesis peptides.

Question 11 of 20 5.0 Points

__________ neurons function to contract muscles.

 

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A. Sensory

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B. Motor

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C. Inter-

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D. Relay

Question 12 of 20 5.0 Points

The principle of natural selection proposes that certain characteristics that __________ will become more prevalent in a species.

 

 

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A. are associated with multiple genetic mutations

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B. inhibit reproductive behaviors

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C. increase reproductive success

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D. impair adaption to the local environment

Question 13 of 20 5.0 Points

A drug that specifically killed the __________ cells would be expected to alter the physical and nutritional support of brain cells.

 

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A. phagocyte

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B. Schwann

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C. microglia

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D. astrocyte

Question 14 of 20 5.0 Points

The nucleus of the nerve cell is located within the:

 

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A. soma.

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B. axon.

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C. axon terminals.

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D. dendrites.

Question 15 of 20 5.0 Points

__________ are located only within the central nervous system.

 

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A. Sensory

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B. Motor

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C. Relay interneurons

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D. Projection neurons

Question 16 of 20 5.0 Points

A scientific explanation of a complex phenomenon that is cast in terms of a simpler one involves the process of:

 

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A. rationalization.

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B. reduction

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C. falsification.

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D. generalization.

Question 17 of 20 5.0 Points

The most common neuron type in the central nervous system is the __________ neuron.

 

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A. multipolar

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B. apolar

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C. sensory

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D. bipolar

Question 18 of 20 5.0 Points

Placing neurons and their synaptic contacts into a medium containing no calcium ions would be expected to:

 

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A. decrease the time required to move sodium ions out of the axon terminal.

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B. enhance the voltage changes associated with the action potential.

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C. prevent the release of neurotransmitter into the synapse.

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D. increase the number of transmitter molecules released from the axon terminal.

Question 19 of 20 5.0 Points

Which of the following was the key characteristic of early humans that allowed them to effectively out-compete other species?

 

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A. Color vision allowed for the detection of ripe fruit and game.

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B. Mastery of fire allowed for provision of warmth in shelters.

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C. Agile hands allowed for the creation and use of tools.

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D. A larger brain allowed for more complicated behavior.

Question 20 of 20 5.0 Points

The __________ system is defined as comprised of the brain and spinal cord.

 

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A. peripheral nervous

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B. central nervous

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C. enteric nervous

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D. human nervous