Exam 4: Exstintion: The Brain: Source of Mind and Self

The action potential is a chemical substance that alters the activity of a receiving neuron.

The neural circuits responsible for our sense of self are well known.

The authors are careful to note that just because neurotransmitters are sometimes effective in treating disorders,that does not necessarily mean that abnormal neurotransmitter levels are causing the disorder.In your essay explain why this is true.

In a normal brain,the two hemispheres communicate with one another across the corpus callosum.

We know that both sides of the brain are involved in most activities but some activities are more closely associated with one hemisphere or the other.List three activities that are most closely associated with the left hemisphere and three activities that are most closely associated with the right hemisphere.

Endorphins give a species an evolutionary advantage because:

Spinal reflexes are automatic and cannot be influenced by thoughts and emotions.

Describe the electrical and chemical communication within and between neurons.In your essay,include an explanation of the differences in the conduction of nerve impulses in myelinated axons when compared to the conduction found in unmyelinated axons.

The spinal cord cannot produce behaviors unless it has been helped by the brain.

Which of the following neurotransmitters affects neurons involved in voluntary movement,learning,memory,emotion,and possibly,response to novelty?

Adrenal hormones are produced by glands:

What is the difference between "gray matter" and "white matter" in the brain?

The part of the brain at the top of the spinal cord is called the:

_______________ is a procedure that is used by researchers as a "virtual" and temporary method to lesion the brain.

The outer part of each adrenal gland produces _______________,which increases blood sugar levels and boosts energy.

The brain stem's two main structures are the medulla and the pons.

Jeff is writing a term paper on the role of melatonin.He decides to emphasize the important role that this hormone plays in regard to:

Endorphins act primarily by:

Hanging down from the hypothalamus is a cherry-sized endocrine gland called the pituitary gland.

Many axons,especially the larger ones,are insulated with a myelin sheath.Write an essay on the importance of the myelin sheath,making sure to incorporate the following information: What kind of cells makes up the myelin sheath? What does the myelin sheath look like? What are two purposes of the myelin sheath? What happens when a person experiences the loss of myelin?