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Nursing Elites

ATI TEAS 7

physics

1. What happens to the density of a substance if its mass increases while its volume remains constant?

Correct answer: a

Rationale: Density is the ratio of mass to volume. If the mass increases while the volume remains constant, the density will increase as there is more mass in the same volume.

2. What is the protective sac surrounding the testes in the male reproductive system?

Correct answer: B

Rationale: The correct answer is B: Scrotum. The scrotum is the protective sac surrounding the testes in the male reproductive system. It houses and protects the testes, helping to regulate their temperature for optimal sperm production. The vas deferens is a duct that carries sperm from the testes to the urethra. The epididymis is a coiled tube where sperm mature and are stored. The urethra is a tube that carries urine from the bladder and semen from the reproductive system. Therefore, the scrotum is the specific structure that directly surrounds and protects the testes in the male reproductive system.

3. Which of the following is a property of amphiprotic substances?

Correct answer: C

Rationale: Amphiprotic substances can donate or accept a proton, so they can act as both acids and bases. The other choices do not accurately describe amphiprotic substances.

4. What is the SI unit of measurement for momentum?

Correct answer: b

Rationale: Momentum is measured in kilogram-meter per second (kg·m/s).

5. Which of the following is NOT a function of the endocrine system?

Correct answer: D

Rationale: The endocrine system is responsible for producing hormones that regulate various bodily functions. Option D, facilitating digestion through muscle contractions, is actually a function of the muscular and digestive systems, not the endocrine system. The endocrine system primarily regulates growth and development, maintains blood sugar levels through hormones like insulin and glucagon, and also plays a role in controlling mood and emotions through hormones such as serotonin and cortisol. Therefore, option D is correct as it is not a function directly associated with the endocrine system.

6. Which of the following is the MOST common symptom of angina pectoris, a condition related to insufficient blood flow to the heart?

Correct answer: B

Rationale: The correct answer is B: Chest pain or discomfort. Angina pectoris is characterized by chest pain or discomfort that occurs when the heart muscle does not receive enough oxygen-rich blood. This pain is often described as a squeezing, pressure, heaviness, or tightness in the chest. While other symptoms like fever, chills, shortness of breath, numbness, or tingling in the extremities can occur in various conditions, chest pain is the hallmark symptom of angina pectoris. It is important to recognize this symptom as it may indicate an underlying heart issue and prompt medical attention is crucial.

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