Exam 4: The Brain and Nervous System

The human body has _______________ pairs of peripheral nerves, one nerve from each pair on the left side of the body and the other on the right.

What can be learned by studying patients who have had a part of the brain damaged because of disease or injury? What can be learned by studying individuals whose disorders have required surgical lesions? What are the drawbacks of the case study method? Include in your essay an evaluation of the case studies of Phineas Gage and split-brain patients.

A PET scan:

One purpose of the myelin sheath is to prevent signals in adjacent cells from interfering with each other.

_______________ is an approach used only with animals to study the brain.

Which part of a neuron acts like an antenna to receive messages from other neurons and transmits these messages toward the cell body?

Outgoing neural signals pass along the _______________ of a neuron to terminal branches.

Researchers took photographs of different faces, cut them down the middle vertically, and pasted different halves together to form composite faces. The reconstructed photographs were flashed quickly to split-brain patients. It was found that the split-brain patients would:

Acetylcholine affects neurons involved in arousal, and is also involved in muscle action.

Cognitive neuroscientists focus on:

The best split-brain researchers would agree that:

Melatonin is secreted by the pituitary gland.

Neuroscientists have found that _______________ can kill the new neurons that have been produced through neurogenesis.

Which of the following is a hormone?

The areas of the somatosensory cortex that receive signals from the hands and the face are disproportionately large.

Explain the experimental procedure used when split-brain patients were shown composite photographs. Why did the patients claim to notice nothing unusual about the original photographs?

Hazel is exceedingly clumsy and uncoordinated. She has difficulty using a pencil or threading a needle. It is most likely that Hazel's _______________ has been damaged.

Which of the following is true regarding the effects of culture on the brain?

Which of the following sex hormones contributes to the growth and maintenance of the uterine lining in preparation for a fertilized egg?

Androgens are feminizing hormones that bring about physical change in females at puberty.