hce_isu
107年
英文
第 34 題
📖 題組：
The kidneys are located in the posterior part of the abdomen. The right kidney sits just below the liver, while the left kidney is under the diaphragm, next to the spleen. On the vertebral level, they are approximately positioned from T12 to L3. In a normal human adult, the kidneys are about 12 centimeters long and five centimeters thick, and weigh 150 grams. They filter the blood and secrete water and nitrogenous waste (urea, creatinine, and so forth) in the form of urine. The medical field that studies the functions and diseases of the kidneys is called nephrology. The kidneys are composed of nephrons. Each nephron consists of a glomerulus, Bowman’s capsule, and renal tubule. There are more than a million nephrons within a healthy adult kidney. The vital function of the nephron is to remove waste from blood plasma. It also helps to maintain a normal fluid balance in the body by reabsorbing water and some electrolytes back into the blood. Urine is formed by a process of filtration and reabsorption in the nephron. Blood enters the nephron via the arteriole. As it passes through the glomerulus, water is filtered through the glomerular membrane and collected in the Bowman’s capsule. The filtrate then passes through the proximal tubule, loop of Henle, distal tubule, and collecting tubule. Other substances, such as uric acid and hydrogen ions, are also added to the urine.
The kidneys are located in the posterior part of the abdomen. The right kidney sits just below the liver, while the left kidney is under the diaphragm, next to the spleen. On the vertebral level, they are approximately positioned from T12 to L3. In a normal human adult, the kidneys are about 12 centimeters long and five centimeters thick, and weigh 150 grams. They filter the blood and secrete water and nitrogenous waste (urea, creatinine, and so forth) in the form of urine. The medical field that studies the functions and diseases of the kidneys is called nephrology. The kidneys are composed of nephrons. Each nephron consists of a glomerulus, Bowman’s capsule, and renal tubule. There are more than a million nephrons within a healthy adult kidney. The vital function of the nephron is to remove waste from blood plasma. It also helps to maintain a normal fluid balance in the body by reabsorbing water and some electrolytes back into the blood. Urine is formed by a process of filtration and reabsorption in the nephron. Blood enters the nephron via the arteriole. As it passes through the glomerulus, water is filtered through the glomerular membrane and collected in the Bowman’s capsule. The filtrate then passes through the proximal tubule, loop of Henle, distal tubule, and collecting tubule. Other substances, such as uric acid and hydrogen ions, are also added to the urine.
How many nephrons can possibly exist within a normal adult kidney?
- A two hundred
- B one thousand
- C more than a million
- D fewer than a hundred
思路引導 VIP
如果你想在文章中找出組成一個器官的「基本單位」在數量上的具體描述，你會建議先在段落中尋找哪些與「數值」或「計量」相關的單字，來幫助你精準定位到那句話呢？
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AI 詳解
AI 專屬家教
太棒了！你的觀察力非常敏銳，能迅速從篇幅較長的科普文章中精準定位關鍵資訊。這題考驗的是對英文文章細節的「擷取與比對」能力，而你成功地在第二段中找到了核心證據。
關鍵數據的定位與核對
在文章第二段明確提到：「There are more than a million nephrons within a healthy adult kidney.」，這句話直接賦予了答案明確的數值支持。腎元（nephron）作為腎臟執行過濾與再吸收功能的基礎結構單位，其數量規模在生理學上具有重要意義。你正確選擇了 (C)，代表你不僅讀懂了文字，也能排除其他在數量級上明顯不符的干擾選項。
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