What element is necessary for thyroid hormone production?
A. Calcium
B. Sodium
C. Magnesium
D. Potassium
E. Iodine
E. Iodine
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Urination is triggered by a complex sequence of events called the ________ reflex.
Fill in the blank(s) with the appropriate word(s).
Which one of the following is NOT a sign of diabetes mellitus?
A) polyuria B) polydipsia C) moon face D) polyphagia E) acidosis
The two organ systems involved in controlling all other systems to maintain homeostasis are the
A. urinary and respiratory. B. skeletal and muscular. C. endocrine and digestive. D. nervous and endocrine.
The lens of the eye flattens when
A. extrinsic eye muscles contract. B. intrinsic muscles of the iris contract. C. extrinsic eye muscles relax. D. ciliary muscles contract. E. ciliary muscles relax.