the deeper layer of the skin containing connective tissue blood vessels and nerve endings is called the
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ATI TEAS 7

TEAS Test 7 science

1. Which layer of the skin, containing connective tissue, blood vessels, and nerve endings, is located beneath the epidermis?

Correct answer: B

Rationale: The correct answer is the dermis. The dermis is the deeper layer of the skin that contains connective tissue, blood vessels, and nerve endings. It is located beneath the epidermis and provides structural support, nourishment, and sensitivity to the skin. The epidermis is the outermost layer of the skin responsible for protection. The hypodermis, also known as the subcutaneous layer, is the deepest layer that contains fat cells and plays a role in insulation and energy storage. The stratum corneum is the outermost layer of the epidermis composed of dead skin cells that are continually shed and replaced.

2. Through which part of the digestive system are nutrients absorbed into the bloodstream?

Correct answer: C

Rationale: The small intestine is the primary site of nutrient absorption in the digestive system. It is where the majority of digestion and absorption of nutrients such as carbohydrates, proteins, and fats occurs. The inner lining of the small intestine is covered in tiny finger-like projections called villi, which increase the surface area available for absorption. Nutrients are absorbed through the walls of the small intestine and into the bloodstream to be transported to cells throughout the body. The stomach's main role is to break down food through the action of stomach acids and enzymes but does not absorb nutrients. The large intestine primarily absorbs water and electrolytes from the remaining indigestible food matter, and the esophagus is a muscular tube that transports food from the mouth to the stomach, without being involved in nutrient absorption.

3. Which of the following is NOT a tissue layer found in skeletal bone?

Correct answer: C

Rationale: Enamel is a hard, outer layer that covers the crown of a tooth and is not a tissue layer found in skeletal bone. The other options, periosteum, bone marrow, and cancellous bone, are all tissue layers or components found in skeletal bone. Periosteum is the connective tissue layer covering the bone surface, bone marrow is found within the bone cavities, and cancellous bone is a spongy, porous bone tissue.

4. Which test is commonly used to assess kidney function?

Correct answer: D

Rationale: The creatinine clearance test is commonly used to assess kidney function. Creatinine, a waste product produced by muscles, is filtered out of the blood by the kidneys. The creatinine clearance test measures how efficiently the kidneys clear creatinine from the blood. Abnormal levels of creatinine in the blood can indicate kidney dysfunction, making this test crucial for evaluating kidney function. Choice A, a complete blood count (CBC), provides information about different blood cells and is not a specific test for kidney function. Choice B, a blood sugar test, assesses glucose levels in the blood and is not directly related to kidney function. Choice C, a urinalysis, evaluates the contents of urine and can provide information about kidney health but is not as specific for assessing kidney function as the creatinine clearance test.

5. In the phrase 'a drop in the bucket,' what does 'bucket' represent?

Correct answer: B

Rationale: The phrase 'a drop in the bucket' is an idiom that means a very small or insignificant amount in comparison to a much larger total. In this context, 'bucket' symbolizes a large quantity, emphasizing the idea that the 'drop' is minimal or inconsequential when considering the overall amount. Choice A, 'A literal container,' is incorrect as 'bucket' in this phrase is not meant to be taken literally but rather symbolically. Choice C, 'A specific goal,' is incorrect as the phrase does not refer to achieving a specific target. Choice D, 'An obstacle,' is incorrect as 'bucket' is not presented as a hindrance or barrier in this idiom.

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