Question 1

______________ initiate, maintain and stop development of secondary sexual characteristics, influence levels of arousal and awareness, serve as the basis for mood changes, and regulate metabolism.

Accepted Answer

A)  Genomes
B)  DNA
C)  Endocrine
D)  Hormones D

Question 2

In humans, the _________________ dwarfs the rest of the brain, occupying two thirds of its total mass.

Accepted Answer

A)  Hypothalamus
B)  Medulla
C)  Cerebrum
D)  Thalamus C

Question 3

An action potential begins when the excitatory inputs are sufficiently strong with respect to inhibitory inputs to depolarize the cell from ______________ millivolts.

Accepted Answer

A)  -70 to -60
B)  -75 to -65
C)  -70 to -55
D)  -75 to -60 C

Question 4

One groove called the _____________, divides each hemisphere vertically.

Accepted Answer

A)  Cortex
B)  Lateral fissure
C)  Central sulcus
D)  Brain stem

Question 5

The pseudoscience associated with the study of the skull and personality became known as ___________.

Accepted Answer

A)  Neuroscience
B)  Neuropsychology
C)  Bioscience
D)  Phrenology

Question 6

A ____________ is any substance that modifies or modulates the activities of the postsynaptic neuron.

Accepted Answer

A)  Neurotransmitter
B)  Neuromodulator
C)  Acetylcholine
D)  Serotonin

Question 7

Anxiety disorders are often treated with benzodiazepine drugs, such as ______________, that increase GABA activity.

Accepted Answer

A)  Valium
B)  Curare
C)  Xanax
D)  Prozac

Question 8

The area where the axon connects to the soma is ______________.

Accepted Answer

A)  Axon hillock
B)  Terminal buttons
C)  Myelin sheath
D)  Nodes of Ranvier

Question 9

___________________ has pioneered the use of electrical stimulation to probe structures deep in the brain.

Accepted Answer

A)  Walter Hess
B)  Broca
C)  Wernicke
D)  Roger Sperry

Question 10

One groove called the _____________, divides each hemisphere horizontally.

Accepted Answer

A)  Cortex
B)  Lateral fissure
C)  Central sulcus
D)  Brain stem

Question 11

_______________often found in food that has been preserved incorrectly, poisons an individual by preventing release of acetylcholine in the respiratory system.

Accepted Answer

A)  Botulinum toxin
B)  Curare
C)  Xanax
D)  Prozac

Question 12

The reticular formation has long tracts of fibers that run to the ____________, which channels incoming sensory information to the appropriate area of the cerebral cortex, where that information is processed.

Accepted Answer

A)  Hypothalamus
B)  Pons
C)  Medulla
D)  Thalamus

Question 13

Areas that include large number of cell bodies are called __________________.

Accepted Answer

A)  White matter
B)  Gray matter
C)  Ganglia
D)  Nerve

Question 14

When the body temperature drops, the _________________ causes blood-vessel constriction or minute involuntary movements, commonly refer to as the "shivers".

Accepted Answer

A)  Hippocampus
B)  Amygdala
C)  Hypothalamus
D)  Thalamus

Question 15

The ________________ is the largest of the limbic system structures, plays an important role in the acquisition of memories.

Accepted Answer

A)  Hippocampus
B)  Amygdala
C)  Hypothalamus
D)  Thalamus

Question 16

The ______________ tends to be more analytical; processes information bit by bit.

Accepted Answer

A)  Right hemisphere
B)  Left hemisphere
C)  Occipital lobe
D)  Temporal lobe

Question 17

When the ___________________is too large to be jumped by the neural impulse, the signal/information must be passed using chemicals as neurotransmitters instead of electrical currents.

Accepted Answer

A)  Spinal reflex
B)  Presynaptic
C)  Action potential
D)  Synaptic cleft

Question 18

Researchers in the field of human behavior genetics unite __________ and psychology to explore the causal link between inheritance and behavior.

Accepted Answer

A)  Chromosome
B)  Behavior
C)  Genome
D)  Genetics

Question 19

The __________ of an organism is the full sequence of genes found on the chromosomes with the associated DNA.

Accepted Answer

A)  X chromosome
B)  Y chromosome
C)  Genome
D)  Genetics

Question 20

The _________is a dense network of nerve cells that serves as the brain's sentinel.

Accepted Answer

A)  Medulla
B)  Association area
C)  Reticular formation
D)  Limbic system

Exam 11: Brain Function and Neurotransmitters