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Nursing Elites

ATI TEAS 7

Biology

1. What is the scientific name for the tear gland?

Correct answer: A

Rationale: The lachrymal gland is the almond-shaped gland located above each eye, responsible for producing tears. Tears are a complex mixture of water, electrolytes, proteins, and other substances that help lubricate and protect the eyes from dryness and irritation.

2. What is the main function of the urinary system?

Correct answer: D

Rationale: The correct answer is D: 'All of the above.' The main function of the urinary system is not just limited to one specific task but encompasses multiple important functions. It is responsible for maintaining acid-base balance by regulating the pH of the blood through the excretion of acids and bases. Additionally, the urinary system plays a crucial role in filtering waste products from the blood and expelling them from the body, which helps in fighting off infections. Moreover, the urinary system is not involved in transporting oxygen, as this function is primarily carried out by the respiratory system. Therefore, 'All of the above' is the correct choice as it includes the comprehensive functions of the urinary system.

3. Which term refers to the point of contact between a motor neuron and a muscle fiber, where communication occurs to initiate muscle contraction?

Correct answer: b

Rationale: The correct answer is B: Synapse. A synapse is the point of contact between a motor neuron and a muscle fiber. At the synapse, communication occurs in the form of neurotransmitters being released from the neuron and binding to receptors on the muscle fiber, initiating muscle contraction. A sarcomere refers to the basic contractile unit of a muscle fiber, not the point of contact between a motor neuron and muscle fiber. A tendon is a fibrous connective tissue that connects muscle to bone, not the communication point. Myofibril is a structure within muscle fibers that contains sarcomeres, but it is not the specific term for the point of contact between a motor neuron and muscle fiber.

4. Which additional information would be MOST relevant to the topic of the passage?

Correct answer: B

Rationale: Studies on the psychological effects of social media use directly relate to the passage's concerns about mental health impacts, making it the most relevant information.

5. What is the term for the shedding of the outermost layer of the epidermis?

Correct answer: A

Rationale: The correct term for the shedding of the outermost layer of the epidermis is desquamation. Desquamation is a natural process where old skin cells are shed off to make way for new cells. Exfoliation refers to the removal of dead skin cells through external means like scrubs. Keratinization is the process by which skin cells produce the protein keratin, while epidermolysis is a condition where the epidermis separates from the dermis. Therefore, in this context, desquamation is the most appropriate term for the shedding of the outermost layer of the epidermis.

6. What can be inferred about the water management systems in Petra?

Correct answer: C

Rationale: The passage highlights the "elaborate" water systems, suggesting their complexity and importance.

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