Leukocytes are the ________ of the formed elements, and leukocytes have ________.
A. smallest; no nucleus
B. largest; no nucleus
C. largest; prominent nuclei
D. smallest; prominent nuclei
Answer: C
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What part of the sarcolemma contains acetylcholine receptors?
A) motor end plate B) part adjacent to another muscle cell C) any part of the sarcolemma D) end of the muscle fiber
In order for blood to enter the heart,
A) the pressure in the atria must be lower than in the veins. B) the atria must be in diastole. C) the atria must not only be at rest but the atrial pressure must be lower than the veins. D) the AV valves must be open. E) All of the answers are correct.
What is the most abundant chemical category of hormone?
a. catecholamines b. peptide hormones c. indoleamines d. steroid hormones e. lipophilic hormones
Except for the ________ region of the spinal cord, one sympathetic trunk ganglion is approximately associated with each spinal nerve.
Fill in the blank(s) with the appropriate word(s).