The secretion of pepsinogen by the chief cells of the gastric pits is induced by the hormone __________
Fill in the blank with the correct word.
Answer: Gastrin
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The papillae located mainly on the tip and sides of the tongue that contain only a few taste buds each are the _______ papillae
A. papiform B. filiform C. fungiform D. vallate E. foliate
During the cardiac cycle,
A. all four chambers of the heart are in systole at the same time. B. the right atrium and the right ventricle contract simultaneously. C. the left atrium contracts before the right atrium. D. the two atria relax while the two ventricles contract. E. all four chambers of the heart contract at the same time.
Oxygen plays a more significant role in respiration than carbon dioxide
Indicate whether the statement is true or false
Bacteria on a splinter in your shoulder would be filtered by lymph nodes in the ________ region.
A. inguinal B. axillary C. cervical D. thoracic E. supratrochlear