Which of the following is false regarding sleep?
A. REM sleep is important for memory processing and consolidation.
B. During REM sleep, the brain uses as much oxygen as when the individual is awake.
C. The longest bouts of REM sleep occur early in the night, with shorter REM periods toward the morning.
D. Different stages of non-REM sleep are characterized by different brain waves.
Answer: C
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The pituitary portal circulation refers to the blood vessels linking the anterior pituitary with the target glands of anterior pituitary hormones.
Answer the following statement true (T) or false (F)
The __________ structure of proteins involves interactions of amino acids that are found on different subunits
A) Primary B) Secondary C) Tertiary D) Quaternary Fill in the blank with the correct word.
Glomerulonephritis is inflammation of the
A) collecting ducts. B) peritubular capillaries. C) glomerular capillaries. D) glomerular capsule.
Your 75-year-old grandmother has a small dog that does not like to have its nails clipped. As a result, the nails stay long. Since the dog is constantly jumping up and down in your grandmother's lap, he tends to scrape and cut her skin in the process. These abrasions, caused by blood vessels being damaged, are seen all over her arms. What factor is related to this problem?
A) She takes large amounts of calcium for her osteoporosis. B) She does not get enough exercise. C) Her blood supply is bad because of lack of exercise. D) She smokes. E) Her age is related to thinner tissues.