Lymph vessels are similar to cardiovascular
A. capillaries.
B. arteries.
C. veins.
Answer: C
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Diabetes mellitus is caused by production of too little insulin or by insensitivity to insulin
Indicate whether the statement is true or false.
Vasoconstriction
a. causes a decrease in resistance. b. occurs when there is a decrease in the radius of a vessel. c. due to a decrease in sympathetic activity. d. two of these answers. e. all of these answers.
If sodium ions cannot enter a muscle fiber in response to a stimulus,
A. contraction cannot occur. B. relaxation cannot occur. C. sodium ions will be released from the sarcoplasmic reticulum instead. D. the active sites are left exposed. E. the action potential travels into the muscle anyway.
________ pass(es) from the maternal blood to the fetal blood. Fetal ________ pass(es) the other way
A) Oxygen and nutrients; wastes B) Wastes and nutrients; oxygen and carbon dioxide C) Wastes; nutrients and oxygen D) Carbon dioxide; nutrients E) Carbon dioxide and oxygen; wastes