During a barroom fight, a 24-year-old man
is hit with a bottle on the lateral
aspect of the lower leg. The man receives a deep laceration about halfway down his lower leg, in the
vicinity of the fibula. Following
the injury, he loses sensation over most of the dorsum of the foot. Which of the following
muscles is also innervated by the
nerve that was likely damaged?
A Guatemalan child with a history of
meconium ileus is brought to a clinic
because of a chronic cough. The mother notes a history of respiratory tract infections and bulky, foul-smelling
stools. After assessment of the
respiratory tract illness, the physician
should also look for signs of
A 4-year-old boy presents to the
emergency room with muscle spasms. His
past medical history is significant for recurrent infections and
neonatal seizures. Evaluation of his
serum electrolytes reveals hypocalcemia.
This patient would be most susceptible to which of the following diseases?
To provide anesthesia to a patient in the
third stage of labor, an obstetrician
palpates the ischial spine transvaginally, then injects a local anesthetic. Injection of anesthetic
at this approximate location will
most likely block which of the following nerves?
A 45-year-old male
presents to the physician with muscle cramps,
perioral numbness, and irritability over the past 3 to 4 months.
Lab results reveal hypocalcemia,
normal albumin level, and hyperphosphatemia
. Parathyroid hormone level is decreased. Alkaline phosphatase level
is normal. Which of the following is
most likely causing this clinical
A healthy, 37-year-old, recently divorced
woman loses her job at th e auto factory. She picks up her three young
children from the factory day care
center and gets into an automobile accident on the way home. Her 5-year-old son, who was not wearing a
seat belt, sustains a severe head
injury. The woman was not hurt in the accident, but is hyperventilating as she sits in the
waiting room at the hospital. She
complains of feeling faint and has blurred vision. Which of the following is decreased in this