When the oxygen content of the blood becomes too low, the ________ releases ________ to stimulate red blood cell production.
A. thyroid gland; thyroxin
B. pancreas; insulin
C. kidney; erythropoietin
D. pituitary gland; follicle-stimulating hormone
E. stomach; gastrin
Answer: C
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A. An antibacterial component of tears B. An antibacterial component of sweat C. An enzyme produced by the eyelids D. An antiviral agent in tears E. A protein used within the vitreous body of the eye
The sense of smell is able to stimulate vivid memories because the olfactory tract passes through the:
a. hypothalamus b. thalamus c. cerebellum d. brainstem
Striking of the medial epicondyle of the humerus often compresses the ________ nerve.
A) radial B) ulnar C) median D) axillary E) None of the answers are correct.
Thyroid hormones
a. are derivatives of an amino acid. b. are produced from tyrosine. c. are stored on thyroglobulin within the follicular colloid. d. both (a) and (c) above. e. all of these answers.