Spicy foods irritate the membrane of your mouth, which triggers goblet cells to produce a protective layer of a thick substance called mucus. What membrane must be lining the mouth?
A. Cutaneous membrane
B. Mucus membrane
C. Synovial membrane
D. Serous membrane
Answer: B
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This is the location in the bone where blood cell production occurs.
A. Epiphyses B. Periosteum C. Diaphysis D. Medullary cavity
Umbilical arteries
A. carry blood with low oxygen and high metabolic wastes from the placenta to the mother's circulation. B. deliver oxygen and nutrient-rich blood from the fetus to the placenta. C. carry highly oxygenated blood from the placenta to the fetus. D. carry blood with low oxygen and high metabolic wastes away from the fetus to the placenta. E. deliver oxygen and nutrient-rich blood from the mother to the placenta.
The channelopathy known as QT syndrome is a result of mutation in ________ channels.
A) calcium B) chloride C) sodium, potassium, or calcium D) potassium E) sodium
The visceral branches of the internal iliac arteries supply blood to the
A. lumbar and gluteal muscles. B. anterior abdominal wall. C. lower leg. D. urinary bladder, rectum, and reproductive organs. E. external genitalia.