Movement of venous blood upward toward the heart is helped by:
A) fibrillation
B) muscular contraction
C) vasodilation
D) vasoconstriction
B
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Which of the following statements is true of cellulite?
A. It is caused by the leakage of fluid from the blood vessels into the spaces between the cells. B. It is caused by an inherited variation in an amino acid sequence. C. It is caused by excessive intake of vitamin C. D. It is caused by the herniation of subcutaneous fat within fibrous connective tissue. E. It is caused by cholesterol deposits in the walls of the arteries, leading to the formation of plaque.
The small and large intestines are part of the ________ system.
Fill in the blank(s) with the appropriate word(s).
Relaxation techniques such as meditation are known to decrease high blood pressure
a. True b. False Indicate whether the statement is true or false
Introductory activities take the least amount of time during a physical education lesson
Indicate whether the statement is true or false