The _____ blood pressure is the top number in a blood pressure reading, while the _____ is the bottom number.

Correct Answer: D

Rationale: The correct answer is D: Systolic. Systolic blood pressure is the top number in a blood pressure reading, representing the pressure in the arteries when the heart beats. Diastolic blood pressure, the bottom number, reflects the pressure in the arteries when the heart is at rest between beats. Radial (A) and Apical (C) are types of pulse points, not blood pressure readings. Therefore, the correct answer is D.

Correct Answer: D

Rationale: The correct answer is D: Ova and parasites. Stool samples for ova and parasites testing need to be delivered to the lab immediately because these organisms can deteriorate quickly outside the body, affecting the accuracy of the results. Ova and parasites are living organisms that can multiply or die off rapidly, so a timely delivery is crucial. Blood, constipation, and mucus do not require immediate delivery to the lab as they are more stable and do not degrade as quickly as ova and parasites.

Correct Answer: D

Rationale: The correct answer is D because as women age, the hormonal changes lead to a decrease in estrogen levels, resulting in the vaginal walls becoming drier and thinner. This is a normal age-related change known as vaginal atrophy. Lung capability increasing (A) and the amount of calcium in the body increasing (C) are not directly related to the female reproductive system. The response to vaccines decreasing (B) is more related to the immune system rather than the female reproductive system.

Correct Answer: B

Rationale: The correct answer is B: Aorta. The left ventricle pumps oxygen-rich blood into the aorta, which is the largest artery in the body and carries oxygenated blood to the rest of the body. This is a crucial step in the systemic circulation process. The other choices are incorrect because: A: Right ventricle - The right ventricle pumps deoxygenated blood to the lungs, not oxygen-rich blood. C: Capillaries - Capillaries are tiny blood vessels where gas exchange occurs between blood and tissues, not a site where blood is pumped. D: Veins - Veins carry blood back to the heart, with oxygen-poor blood returning to the right atrium, not the left ventricle.

Correct Answer: B

Rationale: The correct answer is B: Lending support to body structures. Bones provide structural support for the body, protect vital organs, and allow for movement. They also serve as storage for minerals and production of blood cells. Protecting the body from disease (A) is mainly the function of the immune system. Sending messages throughout the human body (C) is the role of the nervous system. Pumping blood throughout the body (D) is the function of the heart and circulatory system.