Identify the characteristics associated with endocrine glands
a. lack ducts
b. secrete chemicals directly into the blood
c. derived from epithelial tissue
d. include the parathyroids
e. all of these
E
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Compared with the left primary bronchus, the right primary bronchus is
A) steeper. B) less resistant to airflow. C) more prone to blockage. D) wider. E) All of the answers are correct
The adaptive significance of the crossed extensor reflex when a person steps on a tack is to
A. slow the rate of removal of the foot from the tack. B. prevent the person from falling down. C. reduce the pain sensations. D. remove the foot from the tack. E. increase the rate at which withdrawal of the limb occurs.
Dialysis is the diffusion of solutes through a semipermeable membrane.
Answer the following statement true (T) or false (F)
What effect does an increase in antidiuretic hormone (ADH) have on the volume of extracellular fluid (ECF)?
A) ECF increases when antidiuretic hormone (ADH) is present. B) Antidiuretic hormone (ADH) has no effect on ECF. C) ECF increases initially, and then decreases when antidiuretic hormone (ADH) is present. D) ECF decreases when antidiuretic hormone (ADH) is present.