After Being in a Car Accident and Suffering a Mild

question 22

Multiple Choice

After being in a car accident and suffering a mild head injury,Steve's doctor diagnosed him with having mild damage to his posterior pituitary gland.What symptoms would he most likely experience as a result of his head injury?

• A)Damage to the posterior pituitary would prevent him from secreting ADH and oxytocin into the bloodstream.Due to this injury he would not be able to reabsorb water from his bloodstream during urine formation.This would cause him to produce large amounts of urine and resulting in a loss of ions from the blood.
• B)Damage to the posterior pituitary would prevent him from secreting ADH and oxytocin into the bloodstream.Due to this injury he would reabsorb significant amounts of water from his bloodstream during urine formation.This would cause him to produce a small amount of very concentrated urine placing stress upon the kidneys.
• C)Damage to the posterior pituitary would prevent him from secreting growth hormone and gonadotropic hormones into the bloodstream.Due to this injury he would not be able to promote proper skeletal and muscular growth.This may cause him to have a stunted appearance.
• D)Damage to the posterior pituitary would prevent him from secreting ADH and oxytocin into the bloodstream.Due to this injury he would not be able to reabsorb water from his bloodstream during urine formation.This would cause his kidneys to work extremely hard in order to maintain the proper ion concentration in his bloodstream.
• E)Damage to the posterior pituitary would prevent him from secreting ADH and oxytocin into the bloodstream.Due to this injury he would not be able to reabsorb water from his bloodstream during urine formation.This would cause him to produce large amounts of urine and resulting in a loss of ions from the blood.He also would not be able to maintain homeostasis during childbirth.

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Definitions:

Signal Transduction

The process by which cells respond to external signals, converting them into a cellular response through a series of molecular events.

Proprioceptors

Sensory receptors located in muscles and tendons, providing information about body position and movement.

Chemoreceptors

Sensory receptors in the body that respond to chemical stimuli, such as taste or smell.

Mechanoreceptors

Sensory receptors responsible for converting mechanical pressures or changes in position into signals that can be interpreted by the nervous system.