The heart is located in the space called the ________.
A. pericardial cavity
B. mediastinum
C. myocardium
D. abdominal cavity
E. pleural cavity
Answer: B
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________ channels open or close in response to physical distortion of the membrane surface
A) Voltage-gated B) Chemically gated C) Active D) Mechanically gated E) Leak
Females are at higher risk of contracting a urinary tract infection because
A) women use toilet paper when they urinate. B) the female urethra is shorter than the male's. C) the female urethra is longer than the male's. D) women sit down to urinate.
Epinephrine and glucagon promote glycogenolysis
Indicate whether the statement is true or false
A nutrient that is required for the synthesis of fatty acids as well as playing a role in cellular respiration is ________.
A. folic acid B. biotin C. riboflavin D. vitamin C