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Nursing Elites

ATI TEAS 7

physics

1. How does the potential energy of an object change when it is compressed?

Correct answer: b

Rationale: When an object is compressed, it stores potential energy due to its altered position or configuration.

2. Where are most of the body's immune cells located?

Correct answer: A

Rationale: Rationale: - The majority of the body's immune cells are located in the blood. Immune cells, such as white blood cells (leukocytes), circulate throughout the body via the bloodstream to detect and fight off infections and foreign invaders. - While immune cells are also present in other parts of the body like the lymph nodes, spleen, and bone marrow, the blood serves as a primary conduit for immune cells to travel to different tissues and organs to carry out their functions. - The brain (option B) is protected by the blood-brain barrier, which limits the entry of immune cells into the brain to prevent inflammation and damage. - The skin (option C) contains immune cells like Langerhans cells that help protect against pathogens, but the largest concentration of immune cells is found in the blood. - The large intestine (option D) also houses a significant amount of immune cells due to its role in interacting with the external environment through

3. In the female reproductive system, what structure produces eggs (ova)?

Correct answer: A

Rationale: The correct answer is B: Ovaries. The ovaries are the primary reproductive organs in the female body responsible for producing eggs (ova) through a process called ovulation. The fallopian tubes serve as the passageway for the egg to travel from the ovary to the uterus for potential fertilization. The uterus is where a fertilized egg implants and develops into a fetus during pregnancy. The vagina is the muscular canal that connects the uterus to the outside of the body and serves as the birth canal during childbirth. Therefore, the ovaries are specifically responsible for the production of eggs in the female reproductive system.

4. Which of the following best describes the function of the pericardium?

Correct answer: B

Rationale: The correct answer is B: "It acts as a protective sac surrounding the heart." The pericardium is a double-layered membrane that surrounds and protects the heart, providing physical support and preventing overexpansion. It also helps reduce friction between the heart and surrounding structures during heartbeats. Options A, C, and D are incorrect as they describe functions of other parts of the heart such as valves, electrical impulse generation, and transmission pathways, respectively. Understanding the role of the pericardium in protecting the heart is crucial for comprehending the anatomical and physiological aspects of the cardiovascular system.

5. What property of a substance remains constant regardless of changes in its location in the universe?

Correct answer: a

Rationale: Mass is an intrinsic property of matter and remains constant regardless of its location.

6. What type of energy is stored in food?

Correct answer: c

Rationale: Food stores energy in the form of chemical potential energy, which can be released during metabolic processes.

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