Glial cells of the brain are remarkable for their ability to avoid exploding when they are placed in distilled water. This ability comes in part as a consequence of activating ion transport mechanisms that enable them to control cell volume. This activity is an example of
a. self-organization.
b. self-regulation.
c. self-support (structural) and movement.
d. self-replication.
e. all of these.
b
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All of the following are true of neurons except that
A) they cannot divide. B) they conduct a nervous impulse. C) they are composed of a cell body and axon. D) they are a very specialized form of connective tissue. E) they receive information from other neurons through their dendrites.
In areas where the digestive tract is not covered in serosa it is covered by a fibrous connective tissue called
A) the plexus of Auerbach. B) adventitia. C) mucosa. D) peritoneum. E) None of the answers are correct.
Boyle's law states that gas volume is
A) directly proportional to pressure. B) directly proportional to temperature. C) inversely proportional to pressure. D) inversely proportional to temperature. E) both directly proportional to pressure and directly proportional to temperature.
In which abdominal quadrant is the spleen located?
A. Right upper quadrant B. Left upper quadrant C. Right lower quadrant D. Left lower quadrant E. None of these choices is correct.