Which of the following is not a major muscle of the head?
a. Orbicularis oculi.
b. Zygomaticus.
c. Semimembranosus.
d. Masseter.
Answer: c. Semimembranosus.
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What electrolyte does the heart rely on most in order to keep a rhythmic beat?
a. potassium b. phosphorus c. magnesium d. iron e. sodium
About 90% of the secretory product released from the thyroid gland is in the form of __________, yet __________ is about 10 times more biologically potent
Fill in the blank(s) with correct word
Which of the following occurs during rapid eye movement (REM) sleep?
A. A person begins to relax and feels drowsy. B. A person falls into light sleep. C. The muscles are paralyzed, and body temperature, blood pressure, and heart rate and respiratory rate increase. D. The muscles relax, and body temperature, blood pressure, heart rate, and respiratory rate fall. E. The muscles are very relaxed and body temperature, blood pressure, and heart rate, and respiratory rate are at their lowest levels.
Which blood vessels supply the liver?
A. Hepatic portal vein B. Hepatic Artery Proper C. Hepatic vein D. Celiac vein