The percentage of blood composed of erythrocytes is called __________.
a) formed elements
b) buffy coat
c) hematocrit
d) plasma
Answer: c) hematocrit
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Which of the following is TRUE of the adrenal medulla?
A. It dilutes stimuli from the sympathetic nervous system. B. It guards against the "fight-or-flight" response. C. It suppresses epinephrine production. D. Cells of the adrenal medulla receive the neurotransmitter norepinephrine.
Which of the following is not true of red blood cell structure?
a. contains organelles that allow for new protein synthesis b. contains proteins that promote flexibility c. does not contain mitochondria d. bi-concave shape e. not able to reproduce on their own
This is the simplest of the lymphoid organs.
A. Spleen B. Thymus C. Appendix D. Tonsil
The ________ does not belong to the femur.
A. medial condyle B. greater trochanter C. lesser trochanter D. fovea capitis E. anterior border