As the body ages, the intervertebral discs:
A) calcify and become more rigid.
B) enlarge and result in increased height.
C) are not able to protect the spinal cord.
D) lose water content and become thinner.
Answer: D) lose water content and become thinner.
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The layer of the heart wall synonymous with the visceral layer of the serous pericardium is ________
A) myocardium B) endocardium C) epicardium D) parietal layer of the serous pericardium E) either endocardium or epicardium
Which ligament is responsible for holding the head of the radius in place?
A. Anular ligament B. Ulnar collateral ligament C. Radial collateral ligament D. Transverse humeral ligament E. Deltoid ligament
Describe the age-related changes that occur in the female reproductive tract
Vaginal wall thins Increased vaginal mucus production Uterus shrinks Vagina stretches and widens
Cholesterol is
A) a dangerous fat that is absent from a healthy body. B) a precursor to steroid hormones, a structural component of cell membranes, and a dangerous fat that is absent from a healthy body. C) a precursor to steroid hormones and a structural component of cell membranes. D) a structural component of cell membranes. E) a precursor to steroid hormones.