03-25-2007, 04:14 PM
A 10-month-old male infant is brought to the emergency department on a sweltering day in June. He is listless, cranky, and œfloppy as a dishrag. He has no hair or teeth. Over the past 2 weeks, he has not smiled, babbled, rolled over, sat up, or attempted to stand. The mother says that both she and her son cannot tolerate heat and that she has always had thin hair and still has some baby teeth. Which of the following skin structures is most likely to be absent or greatly decreased in number in the mother and the child?
A
) Langerhans™ cells
B
) Merkel™s cells
C
) Pacinian corpuscle
D
) Sebaceous glands
E
) Sweat glands
A
) Langerhans™ cells
B
) Merkel™s cells
C
) Pacinian corpuscle
D
) Sebaceous glands
E
) Sweat glands