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Nursing Elites

ATI TEAS 7

Anatomy

1. The muscular diaphragm plays a vital role in respiration. When it contracts, it:

Correct answer: A

Rationale: The diaphragm is a crucial muscle involved in respiration. When the diaphragm contracts, it flattens and moves downwards, increasing the volume in the thoracic cavity. This expansion creates a negative pressure in the lungs, causing air to rush in during inhalation. Therefore, option A, 'Increases lung volume for inhalation,' is the correct answer. The diaphragm's contraction facilitates the breathing process by creating space for the lungs to expand and take in air, making it essential for proper respiration.

2. During sexual intercourse, sperm travels through a tube from the testes to the urethra. What is the name of this tube?

Correct answer: A

Rationale: The correct answer is A: 'Vas deferens.' The vas deferens is a tube that carries sperm from the testes to the urethra during ejaculation. It is a crucial part of the male reproductive system, allowing for the transport of sperm for fertilization. The epididymis is where sperm mature and are stored, not where they travel during intercourse. The seminal vesicle is a gland that produces a significant portion of the seminal fluid. The urethra is the tube that carries both urine and semen out of the body but is not where sperm travels from the testes.

3. What is the term for a repetitive, involuntary muscle contraction that can cause pain and stiffness?

Correct answer: B

Rationale: The correct answer is B: 'Spasm.' A spasm is a sudden, involuntary muscle contraction that can cause pain and stiffness. Cramps are a type of spasm characterized by intense, localized pain and temporary muscle tightness. Tics are repetitive, involuntary movements or vocalizations. Fibrosis refers to the formation of excess fibrous connective tissue in an organ or tissue, not related to muscle contractions. Therefore, 'spasm' best fits the description provided in the question.

4. How do you spell the past participle of the verb "lie" (to recline)?

Correct answer: B

Rationale: The past participle of "lie" (to recline) is "lain," not "lied," which is the past tense.

5. When does work on an object occur?

Correct answer: c

Rationale: Work is done when a force is applied to an object, causing it to move in the direction of the force.

6. A baseball is thrown into the air. At the peak of its trajectory, which of the following forces is acting on the ball?

Correct answer: A

Rationale: At the peak, the ball momentarily stops moving upwards. Its inertia keeps it moving horizontally, but there is no force propelling it upwards except for gravity pulling it down.

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