which of the following is a dense interconnected mass of nerve cells located outside of the central nervous system
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ATI TEAS 7

TEAS 7 Science Practice Test

1. Which of the following is a dense, interconnected mass of nerve cells located outside the central nervous system?

Correct answer: A

Rationale: A ganglion is a dense, interconnected mass of nerve cells located outside the central nervous system. Ganglia serve as relay points where nerve cells communicate and integrate signals. They are found along peripheral nerves, processing sensory information and coordinating motor responses. Choice B, dendrite, refers to a part of a neuron that receives signals, not a mass of nerve cells. Choice C, cranial nerve, is a bundle of nerves that emerge from the brain, not a mass of nerve cells. Choice D, pons, is a part of the brainstem, which is within the central nervous system, not located outside of it.

2. Which skin condition is characterized by patches of inflamed, reddened skin and is often triggered by allergens or stress?

Correct answer: A

Rationale: Eczema is the correct answer. It presents as patches of inflamed, reddened skin and can be triggered by allergens, stress, or other factors. Psoriasis, on the other hand, is characterized by red, scaly patches rather than inflamed and reddened skin. Acne manifests as pimples and blemishes, not patches of inflamed skin. Vitiligo is characterized by the loss of skin color in patches, which is distinct from the symptoms described in the question.

3. Which of the following lobes of the brain is primarily responsible for vision?

Correct answer: B

Rationale: The occipital lobe is primarily responsible for processing visual information. It contains the primary visual cortex, which plays a key role in interpreting visual stimuli. The frontal lobe is more associated with functions such as decision-making and problem-solving, making choice A incorrect. The parietal lobe is involved in processing sensory information but not specifically vision, making choice C incorrect. The temporal lobe is responsible for functions like memory and auditory processing, so choice D is also incorrect.

4. Which of the following conditions is characterized by a wasting or decrease in muscle mass?

Correct answer: B

Rationale: Atrophy is the correct answer as it is characterized by a wasting or decrease in muscle mass. Hypertrophy, on the other hand, refers to an increase in muscle size. Spasticity is associated with increased muscle tone due to continuous contraction of muscles. Myopathy, on the other hand, is a broad term used to describe various muscle diseases affecting muscle tissue, which may or may not involve muscle wasting.

5. What is the term for the process of a liquid changing into a gas?

Correct answer: A

Rationale: The correct answer is 'Evaporation.' Evaporation is the process by which a liquid changes into a gas at any temperature, while boiling specifically refers to the rapid vaporization of a liquid only at its boiling point. Condensation is the opposite process of gas turning into a liquid, and sublimation is the direct transition from solid to gas without passing through the liquid phase.

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