Which hormone below targets osteoclasts when blood calcium levels are too low, thus, causing an increase in the concentration of calcium in the blood

a. aldosterone.
b. thyroid hormone.
c. cortisol.
d. parathyroid hormone.
e. calcitonin.


D

Anatomy & Physiology

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The narrow inferior region of the stomach is called the ____

a. fundus b. cardia c. pylorus d. duodenum

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The building blocks that form the DNA double helix are called

A. nuclear pores. B. steroid bases. C. nucleotides. D. nitrogenous acids. E. nucleoli.

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The dorsal respiratory group in the medulla oblongata is involved with ________.

A. breathing rhythm B. expiration C. inspiration D. Both inspiration and expiration are correct.

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Fibroblasts and protein fibers are associated with both ________ and ________.

A. elastic cartilage; hyaline cartilage B. plasma; formed elements C. adipose tissue; reticular tissue D. dense regular; dense irregular connective tissues E. spongy bone; compact (dense) bone

Anatomy & Physiology