A primary purpose of a cool-down is to return blood from the muscles worked back toward the heart
Indicate whether the statement is true or false
TRUE
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One cancer immunotherapy that has been attempted is pulsing ________ with peptides to
increase cytotoxic T lymphocyte activity against tumor cells. A) natural killer cells B) T helper cells C) dendritic cells D) monocyte/macrophages E) B lymphocytes
Fiber can help
A. prevent constipation by increasing fecal bulk. B. manage diabetes by slowing the movement of glucose into the blood. C. reduce the absorption of cholesterol. D. prevent constipation by increasing fecal bulk and manage diabetes by slowing the movement of glucose into the blood. E. All of these choices are true.
Physiological changes that result from sympathetic nervous system activation include _____
a. decreased blood pressure b. decreased oxygen to the brain c. increased heart rate d. increased digestion e. increased salivation
Which of the following statements about male sterilization is TRUE?
A. It is performed under general anesthesia. B. It is irreversible. C. The procedure has significantly higher risk for physical complications than does female sterilization. D. It requires another form of birth control to be used until a sperm-free sample of ejaculate is obtained.