Exam 11: Brain Function and Neurotransmitters

______________ 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.

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

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

One groove called the _____________, divides each hemisphere vertically.

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

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

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

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

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

One groove called the _____________, divides each hemisphere horizontally.

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

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.

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

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

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

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

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.

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

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

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