Nursing Elites

1. What is the role of the liver in detoxification?

• A. To secrete bile
• B. To store glucose
• C. To convert toxins into less harmful substances
• D. To produce insulin

Correct answer: C

Rationale: The correct answer is C. The liver's primary function in detoxification is to convert harmful toxins into less harmful substances. This process helps in safeguarding the body from the adverse effects of toxins and is essential for maintaining overall health. Choices A, B, and D are incorrect because secreting bile, storing glucose, and producing insulin are functions of the liver unrelated to detoxification.

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

• A. To transport oxygen
• B. To produce hormones
• C. To fight infections
• D. To transport nutrients

Correct answer: C

Rationale: The main function of the lymphatic system is to fight infections. It achieves this by filtering lymph, returning excess tissue fluid to the bloodstream, and aiding in the body's immune response. The lymphatic system is crucial in protecting the body against pathogens and maintaining overall health. Choices A, B, and D are incorrect because transporting oxygen, producing hormones, and transporting nutrients are functions performed by other systems in the body, like the respiratory, endocrine, and circulatory systems, respectively.

3. What is the main function of the nervous system?

• A. Transporting blood
• B. Protecting the body from infection
• C. Regulating body temperature
• D. Digesting food

Correct answer: C

Rationale: The main function of the nervous system is to control and coordinate body activities by transmitting signals between different parts of the body and responding to internal and external stimuli. This allows for the regulation of body temperature, movement, sensory perception, and various other functions necessary for homeostasis. Choices A, B, and D are incorrect as they do not align with the primary role of the nervous system. Transporting blood is mainly carried out by the circulatory system, protecting the body from infection is a function of the immune system, and digesting food is the role of the digestive system.

4. Which part of the brain is involved in processing visual information?

• A. Frontal lobe
• B. Parietal lobe
• C. Occipital lobe
• D. Temporal lobe

Correct answer: C

Rationale: The occipital lobe, located at the back of the brain, is primarily responsible for processing visual information received from the eyes. It plays a crucial role in interpreting and making sense of the visual stimuli perceived by the eyes, such as shapes, colors, and movement. This region is essential for visual perception and is specialized for processing and analyzing visual input, making it the correct answer. The frontal lobe is primarily involved in higher cognitive functions like decision-making and problem-solving, not visual processing. The parietal lobe is more related to sensory processes and spatial awareness, while the temporal lobe is primarily involved in processing auditory information and memory, not visual processing.

5. Which part of the brain monitors and controls the body's movement?

• A. Top, middle portion of the parietal lobe
• B. Back of the head
• C. Front portion of the parietal lobe
• D. Around the auditory cortex

Correct answer: C

Rationale: The correct answer is the front portion of the parietal lobe. The motor cortex, located in this area, is responsible for planning, controlling, and executing voluntary movements. It plays a crucial role in coordinating the body's movement. Choice A, the top, middle portion of the parietal lobe, is incorrect as this region is more involved in processing sensory information rather than controlling movement. Choice B, the back of the head, is incorrect as it typically refers to the occipital lobe responsible for processing visual information. Choice D, around the auditory cortex, is incorrect as the auditory cortex is primarily involved in processing auditory information, not controlling body movement.

Similar Questions