long term potentiation ltp is a process in the brain associated with
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ATI TEAS 7

TEAS Test 7 science

1. Long-term potentiation (LTP) is a process in the brain associated with:

Correct answer: B

Rationale: Long-term potentiation (LTP) is a process in the brain strongly associated with memory formation. It involves the strengthening of synapses between neurons, which is crucial for learning and memory. Sensory perception, muscle control, and emotional regulation are not directly related to LTP. Sensory perception involves the detection and processing of sensory information, muscle control pertains to movement coordination, and emotional regulation refers to the management of emotions, none of which are primarily influenced by LTP.

2. What is the primary function of the large intestine?

Correct answer: D

Rationale: The primary function of the large intestine is to absorb water and electrolytes from the indigestible food matter that passes through it. This absorption process aids in the formation of solid waste (feces) before it is excreted from the body. Choices A, B, and C are incorrect because the large intestine does not primarily digest and absorb nutrients, store and mix food, or break down carbohydrates. These functions are primarily carried out by the small intestine.

3. Which of the following is NOT a function of the nervous system?

Correct answer: C

Rationale: The nervous system is responsible for detecting touch (option A), regulating body temperature (option B), and controlling muscle movement (option D). Producing insulin (option C) is a function of the endocrine system, which produces hormones like insulin to regulate metabolism and glucose levels. Therefore, option C is the correct answer as it is not a function of the nervous system.

4. Which of the following correctly orders the layers of the epidermis from most superficial to deepest?

Correct answer: B

Rationale: The correct order of the layers of the epidermis from most superficial to deepest is: Stratum corneum, Stratum lucidum, Stratum granulosum, Stratum spinosum, Stratum basale. Choice B, 'S. corneum, S. lucidum, S. granulosum, S. spinosum, S. basale,' provides the accurate layering from the outermost to the innermost layer of the epidermis. Choice A is incorrect as it starts with Stratum spinosum, which is not the most superficial layer. Choice C is incorrect as it places Stratum spinosum before Stratum basale. Choice D is incorrect as it starts with Stratum basale, which is the deepest layer of the epidermis.

5. 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.

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