Papillary muscles of the right ventricle receive a signal to contract from (the)
A) bundle branches.
B) AV node.
C) moderator band.
D) Purkinje fibers.
E) None of the answers are correct.
C) moderator band.
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What is the normal pH range for gastric juice?
a. 1-3 b. 3.5-4.5 c. 4-8 d. 5-7 e. 7.5-8.5
Match the function with its appropriate description.A. Movement of molecules from digestive tract into bloodB. Chewing of foodC. Muscular contractions that propel foodD. Removal of undigested wastes from bodyE. Breakdown of organic molecules with digestive enzymesMastication
Fill in the blank(s) with the appropriate word(s).
The pH of a solution is directly proportional to the hydrogen ion concentration of the solution.
Answer the following statement true (T) or false (F)
What feature of the epiglottis is not shared by the other laryngeal cartilages?
A) It contains elastic cartilage. B) It contains fibrocartilage. C) It is part of the respiratory zone. D) It is the most inferior of the laryngeal cartilages.