The major source of hydrogen ions in the body is
a. dietary intake of acids such citric acid and acetic acids.
b. phosphoric acids and sulfuric acids formed by protein metabolism.
c. fatty acid metabolites such as keto acids.
d. carbon dioxide produced by cellular respiration.
e. hydrochloric acid produced by gastric glands.
D
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The hormone __________ promotes uterine contractions during labor.
Fill in the blank(s) with the appropriate word(s).
A capillary wall has a measured thickness of about one ____________________
Fill in the blank(s) with correct word
Which embryonic structure gives rise to the trachea?
A. The conotruncus B. The bulbus cordis C. The pulmonary groove D. The first pharyngeal arch E. The lung buds
T tubules are invaginations of the
A. sarcoplasmic reticulum. B. sarcomere. C. myofibril. D. sarcoplasm. E. sarcolemma.