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Nursing Elites

ATI TEAS 7

anatomy

1. Which of the following is a condition characterized by inflammation and narrowing of the airways, leading to symptoms such as wheezing, coughing, and shortness of breath?

Correct answer: C

Rationale: The correct answer is C: Asthma. Asthma is a chronic condition that involves inflammation and narrowing of the airways, leading to symptoms like wheezing, coughing, and shortness of breath. Pneumonia (A) is an infection of the lungs, not a chronic inflammatory condition like asthma. Tuberculosis (B) is a bacterial infection that primarily affects the lungs and does not typically manifest with symptoms like wheezing. Emphysema (D) is a lung condition characterized by damage to the air sacs in the lungs, not inflammation and narrowing of the airways like asthma.

2. The major site for nutrient absorption in the digestive system is the:

Correct answer: C

Rationale: The correct answer is C: Small intestine. The small intestine is the major site for nutrient absorption in the digestive system. It is where most of the digestion and absorption of nutrients from food takes place. The small intestine has villi and microvilli that increase its surface area, allowing for efficient absorption of nutrients like sugars, amino acids, and fatty acids into the bloodstream. The mouth is primarily responsible for mechanical digestion through chewing, while the stomach's main function is to break down food with enzymes and acids. The large intestine mainly absorbs water and electrolytes, with minimal nutrient absorption.

3. Which property of a substance describes its ability to conduct heat or electricity?

Correct answer: b

Rationale: Conductivity refers to a substance's ability to conduct heat or electricity

4. The involuntary, rhythmic contractions of the heart muscle are controlled by a specialized group of cells located in the:

Correct answer: D

Rationale: The correct answer is D: Sinoatrial node (located within the heart). The sinoatrial node, also known as the heart's natural pacemaker, is a cluster of specialized cells within the heart that controls the heart rate by initiating the electrical impulses that regulate the heart's contractions. The lungs (A), brain (B), and spinal cord (C) do not directly control the rhythmic contractions of the heart muscle. Therefore, the sinoatrial node is the specific anatomical location responsible for regulating the heart's rhythmic contractions, making it the correct answer.

5. What are the white blood cells responsible for coordinating the immune response called?

Correct answer: C

Rationale: The correct answer is C: "Lymphocytes." Lymphocytes are a type of white blood cell that plays a crucial role in coordinating the immune response. There are two main types of lymphocytes: B cells, which produce antibodies to target pathogens, and T cells, which directly attack infected cells. Neutrophils (option D) are another type of white blood cell involved in the immune response by engulfing and destroying pathogens. Red blood cells (option A) are responsible for carrying oxygen to body tissues, while platelets (option B) are involved in blood clotting. Therefore, lymphocytes are specifically responsible for coordinating the immune response, making them the correct answer to this question.

6. What is a lifestyle practice that can benefit the lymphatic system?

Correct answer: C

Rationale: The correct answer is C: Regularly engaging in moderate exercise. Exercise can benefit the lymphatic system by promoting circulation and the movement of lymph fluid throughout the body. This helps to remove toxins and waste products, improving overall lymphatic function. Consuming a high-sugar diet (A) can have a negative impact on the lymphatic system by increasing inflammation and impairing immune function. Maintaining a sedentary lifestyle (B) can lead to poor lymphatic circulation and fluid retention. Smoking cigarettes (D) is harmful to the lymphatic system and overall health, as it can impair immune function and increase inflammation.

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