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The sigmoid is part of the:

A.

Colon

B.

Esophagus

C.

Small intestine

D.

Stomach

Answer and Explanation

The Correct Answer is A

A. Colon: The sigmoid colon is the S-shaped terminal portion of the large intestine, connecting to the rectum.

B. Esophagus: The esophagus is part of the upper digestive tract, not the colon.

C. Small intestine: The sigmoid colon is not a part of the small intestine.

D. Stomach: The stomach is part of the upper GI tract and does not include the sigmoid colon.


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Related Questions

Correct Answer is ["B","C","D","E"]

Explanation

A. Producing glucagon: Glucagon is produced by the alpha cells of the pancreas, not the liver.

B. Synthesis of bile: The liver synthesizes bile, which is stored in the gallbladder and aids in fat digestion.

C. Metabolism of proteins, fats, carbohydrates: The liver plays a central role in metabolism, processing amino acids, lipids, and glucose.

D. Detoxifying drugs: The liver detoxifies substances, including medications and alcohol, converting them into less harmful forms.

E. Storage of fat-soluble vitamins: The liver stores vitamins A, D, E, and K, which are fat-soluble and essential for various functions.

Correct Answer is C

Explanation

A. Decreased GFR (glomerular filtration rate): A low GFR would reduce urine output, not increase it.

B. Over secretion of aldosterone: Aldosterone promotes sodium and water reabsorption, which decreases urine output.

C. Decrease amounts of ADH: Antidiuretic hormone (ADH) helps retain water. A deficiency leads to diuresis, causing polyuria (as seen in diabetes insipidus).

D. Activation of angiotensinogen: This leads to vasoconstriction and aldosterone release, promoting water retention, not polyuria.

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