The most delicate of the meninges consists of elastic and collagen fibers and is known as the
A. falx cerebri.
B. arachnoid mater.
C. pia mater.
D. dura mater.
Answer: C
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The vitamin that is a constituent of coenzyme A is
A) folic acid (folate). B) pantothenic acid. C) pyridoxine (B6). D) riboflavin. E) niacin.
Select the correct statement about the function of antibodies.
A) Antibodies may directly destroy "invaders." B) Neutralization is the process by which antibodies cause invading cells to clump together. C) Complement fixation is the main mechanism by which antibodies provide protection. D) The most potent agglutinating agent is IgG.
Cardiac output is defined as ____________________.
the blood pumped out of the heart during a single beat the blood remaining in each ventricle after contraction the blood flowing into the heart during diastole the blood pumped out of the heart during a single minute None of the choices are correct
Match each gastric secretion with the correct function
1. Protects lining of the stomach Hydrochloric acid 2. Destroys ingested bacteria and activates pepsin Gastrin 3. Active form aids in breaking proteins into smaller peptide chains Intrinsic factor 4. Stimulates gastric secretions Pepsinogen 5. Aids in the absorption of Vitamin B12 Mucous