Which of the following is NOT true regarding the lymphatic system?
a. Lymph is returned to the cardiovascular system where it once more becomes a part of blood plasma.
b. Lymphatic capillaries absorb lipid droplets from interstitial fluid.
c. Lymph flows from lymph capillaries to larger lymphatic vessels to the heart and lungs.
d. The lymphatic system removes microorganisms from body fluid.
e. Lymphatic capillaries absorb excess fluid from the tissues.
Ans: c. Lymph flows from lymph capillaries to larger lymphatic vessels to the heart and lungs.
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A. neither hypertrophy nor hyperplasia B. both hypertrophy and hyperplasia C. hypertrophy but not hyperplasia D. hyperplasia but not hypertrophy
What is the special name given to the epithelium that lines the circulatory system?
a. endomysium b. pericardium c. peritoneum d. endothelium
An inhibitory presynaptic neuron can affect a postsynaptic neuron by
A) producing an IPSP in the postsynaptic neuron. B) hyperpolarizing the plasma membrane of the postsynaptic neuron. C) causing K+ to diffuse out of the postsynaptic neuron. D) causing Cl- to diffuse into the postsynaptic neuron. E) all of the above.
During congestive heart failure ________.
A. renin secretion is stimulated B. blood pools in front of the affected ventricle C. high blood K+ causes cardiac arrest in systole D. high blood Ca2+ causes cardiac arrest in systole