From the collecting ducts, lymph enters ________ and becomes part of the ________.
A. capillaries; blood supply
B. veins; plasma
C. arteries; serum
D. lymph nodes; lymphatic trunks
Answer: B
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A person with a low iron count does not understand why shortness of breath and fatigue are occurring. What should be explained to this person about the role of iron in oxygenation?
A) Iron clears the lungs of foreign particles and debris B) Iron carries oxygen through the blood to the tissues C) Iron prevents the alveoli in the lungs from collapsing D) Iron removes carbon dioxide from the blood
Skeletal muscle contraction requires large amounts of energy in the form of ___________ in order to complete the sequence of cyclic events that lead to sarcomere shortening
Fill in the blank with correct word.
Oxygen plays a minor role in the control of normal respiration because
A) deoxygenated venous blood is 75% saturated. B) oxygenated blood is < 95% saturated. C) deoxygenated venous blood is < 5% saturated. D) oxygenated blood is more sensitive to CO2.
Which of the following is a product of anaerobic metabolism?
a. ethanol b. tauropine c. alanine d. alanopine e. all of these